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By Shot Peening Or Blasting Patents (Class 29/90.7)
Patent number: 9956613Abstract: A sliding member having a hardness proper for an environment where a high-pressure is applied and having a good abrasion resistance. A sliding member 1 comprises a first sintered compact layer 2 formed by solidifying an iron-based metallic powder with a sinter; and a second sintered compact layer 3 formed by solidifying a copper-based metallic powder on a surface of the first sintered compact layer 2 to improve a sliding characteristic. The second sintered compact layer 3 is densified by a blast process where the powder is collided against a surface of the second sintered compact layer 3.Type: GrantFiled: October 22, 2013Date of Patent: May 1, 2018Assignee: Senju Metal Industry Co., Ltd.Inventors: Satoshi Masuda, Naoki Sato, Ryoichi Kurata
Patent number: 9783877Abstract: Systems and methods in accordance with embodiments of the invention implement bulk metallic glass-based macroscale compliant mechanisms. In one embodiment, a bulk metallic glass-based macroscale compliant mechanism includes: a flexible member that is strained during the normal operation of the compliant mechanism; where the flexible member has a thickness of 0.5 mm; where the flexible member comprises a bulk metallic glass-based material; and where the bulk metallic glass-based material can survive a fatigue test that includes 1000 cycles under a bending loading mode at an applied stress to ultimate strength ratio of 0.25.Type: GrantFiled: July 16, 2013Date of Patent: October 10, 2017Assignee: California Institute of TechnologyInventors: Douglas C. Hofmann, Gregory Agnes
Patent number: 9517545Abstract: The present invention is about the design and manufacturing method of constructing nano-structured lattices. The design of the four periodic two-dimensional lattices (hexagonal, triangulated, square and Kagome) is described; and the process of making nano-structured lattices is outlined in the present invention.Type: GrantFiled: August 1, 2014Date of Patent: December 13, 2016Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITEDInventors: Jian Lu, Phu Son Mai, Chun Sheng Wen
Patent number: 9126308Abstract: A large table 30 is rotatably disposed at a position within an area that includes a projected area toward which shot is projected and a non-projected toward which no shot is projected. A plurality of small tables 32 are disposed on the large table 30. Each of the small tables 32 has a rotating shaft 33 that is parallel to the rotating shaft 31 of the large table 30. Thereby each of the small tables 32 can rotate. Workpieces 12 are placed on the small tables 32. A centrifugal projector 20 centrifugally accelerates shot to project it toward the workpieces 12 on the small tables 32. Each of the workpieces 12 on the small tables 32 is pressed down from above by the holding member 48 of the holding mechanism 46. The holding member 48 can rotate along with the workpiece 12.Type: GrantFiled: May 31, 2011Date of Patent: September 8, 2015Assignee: SINTOKOGIO, LTD.Inventor: Masatoshi Yamamoto
Patent number: 9056386Abstract: The present invention aims to provide a method of shot-peening treatment that substantially improves the durability (particularly, heat check resistance) of the treated surface of the steel products in the process of treating by shot peening (hereafter, "SP") the surface of the steel product that is the work to be treated and that was treated by heat hardening. The SP treatment of the present invention that gives the SP treatment to the steel product that was heat-treated and that is a work to be treated comprises the first SP treatment that removes the compound layer (white layer) and a second SP treatment that gives compressive residual stress to the first SP treated surface that was treated by the first SP treatment where the second SP treatment is carried out only to the products where it has been proved by the non-destructive inspection that the compound layers are removed by the first SP treatment.Type: GrantFiled: September 15, 2010Date of Patent: June 16, 2015Assignee: SINTOKOGIO, LTD.Inventor: Yuji Kobayashi
Patent number: 8955225Abstract: In forming an actuator, a large end surface of a tapered roller of a tapered roller bearing is shot with minute particles of silicon carbide having a diameter of 0.5 to 100 ?m and having an angle formed by crushing, and such a surface is scraped concavely at a diameter within a range from 0.5 to 100 ?m to form a large number of concavities having a depth of equal to or greater than 1 ?m at a pitch of equal to or less than 200 ?m. The concavities are non-continuous and isolated from each other, and serve as a lubricant puddle. The concavities are formed by scraping and not by plastic deformation, and thus the surface is not hardened.Type: GrantFiled: November 14, 2011Date of Patent: February 17, 2015Assignee: NSK Ltd.Inventors: Masato Kobayashi, Tomoharu Saito, Shinji Fujita, Takanori Tanaka
Patent number: 8943659Abstract: A method and device for the surface peening, especially ultrasonic shot-peening, of at least one partial element of a component of a gas turbine, is disclosed. The partial element, e.g., a sealing fin, and at least one surface of a vibration device impinging the blasting material are positioned relative to each other at an angle between 70° and 90° based on the direction of extension of the sealing fin.Type: GrantFiled: December 5, 2007Date of Patent: February 3, 2015Assignee: MTU Aero Engines GmbHInventors: Erwin Bayer, Max Niegl, Holger Polanetzki, Thomas Peschke, Thomas Dautl, Philipp Thuemmler
Patent number: 8936236Abstract: A manufacturing method of a coil spring for an automobile suspension includes forming a material into a coil shape; performing a heat treatment step on the material; performing a warm shot peening step on the material, and performing a hot setting step on the material. By performing the warm shot peening step prior to the hot setting step, a stronger compressive residual stress is imparted in a direction along which a large tensile stress acts during actual use of the coil spring, thereby improving sag resistance and durability of the coil spring. A coil spring is also manufactured according to this method.Type: GrantFiled: September 28, 2010Date of Patent: January 20, 2015Assignee: Chuo Hatsujo Kabushiki KaishaInventors: Tomohiro Nakano, Takayuki Sakakibara, Takanori Kuno, Shingo Mimura, Masami Wakita
Patent number: 8931318Abstract: A device for surface-peening, especially for the ultrasound shot-peening of a component of a gas turbine, having at least one vibration means that comprises a surface that propels the peening material, and having a holding means with which a surface area of the component and the surface of the vibration means can be arranged with respect to each other is disclosed. In this context, the angular position of the surface of the at least one vibration means can be adjusted relative to the surface area of the component of the gas turbine. Moreover, a method is provided in which the angular position of the surface of the at least one vibration means can be adjusted relative to the surface area of the component.Type: GrantFiled: December 5, 2007Date of Patent: January 13, 2015Assignee: MTU Aero Engines GmbHInventors: Erwin Bayer, Max Niegl, Martin Bussmann, Thomas Peschke
Patent number: 8893538Abstract: Uniform nano-scale microstructures can be reliably formed on the surface layer of this metal product while still improving the surface roughness and make the surface layer robust enough not to disappear due to wear. The surface of the metal product is repeatedly subjected to instantaneous rapid heating and rapid cooling by intermittently ejecting onto the surface of the metal product shot with a mixture of three or more approximate but different particle sizes for a high ejection density, thereby forming uniform microstructures near the surface of the metal product and forming micro-diameter dimples in the metal surface.Type: GrantFiled: November 10, 2011Date of Patent: November 25, 2014Assignee: Fuji Kihan Co., Ltd.Inventor: Yoshio Miyasaka
Austenitic stainless steel pipe excellent in steam oxidation resistance and manufacturing method thereforPatent number: 8852362Abstract: There is provided an austenitic stainless steel pipe excellent in steam oxidation resistance. The austenitic stainless steel pipe excellent in steam oxidation resistance contains, by mass percent, 14 to 28% of Cr and 6 to 30% of Ni, and is configured so that a region satisfying the following Formula exists in a metal structure at a depth of 5 to 20 ?m from the inner surface of the steel pipe: (?/?)×?/?×100?0.3 where the meanings of symbols in the above Formula are as follows: ?: sum total of the number of pixels of digital image in region in which orientation difference of adjacent crystals detected by electron backscattering pattern is 5 to 50 degrees ?: the number of total pixels of digital image in region of measurement using electron backscattering pattern ?: analysis pitch width of electron backscattering pattern (?m) ?: grain boundary width (?m).Type: GrantFiled: June 1, 2012Date of Patent: October 7, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Yoshitaka Nishiyama, Mitsuru Yoshizawa, Masahiro Seto, Katsuki Tanaka
Patent number: 8834126Abstract: A method for protecting a fan blade with an airfoil, a tip, a root and a sheath, the root to be inserted into a hub includes peening the airfoil of the blade; inserting a scrim cloth between the fan blade and the sheath to galvanically isolate the fan blade from the sheath; bonding the sheath to the blade with an epoxy adhesive; peening the blade root; bonding wear pads to the root with epoxy adhesive to galvanically isolate the root from the hub; applying a protective cover to the tip of the blade; and applying a coating to all exposed areas of the blade to inhibit corrosion.Type: GrantFiled: June 30, 2011Date of Patent: September 16, 2014Assignee: United Technologies CorporationInventors: James O. Hansen, Joseph Parkos, Thomas J. Watson, Christopher J. Hertel, Kelly L. Hoover
Patent number: 8739589Abstract: For surface strengthening of blisk blades, a blade area of the blisk is completely inserted into a water bath (13), and a multitude of high-pressure water jets are injected into the water bath which are directed bilaterally and essentially vertically—and opposite to each other—to both blade sides. Cavitation bubbles imploding near the blade surface that are generated in the water bath on the periphery of the high-pressure water jets to produce micro jets upon imploding, exerting an effect on the blade surface, creating plastically formed depressions without sharp edges. An apparatus for performing the method includes a container (3), a jetting unit (6) having parallel spaced apart water-jet tubes (4) with nozzle openings connected to a high-pressure water conduit (5) to produce the high-pressure water jets.Type: GrantFiled: January 14, 2011Date of Patent: June 3, 2014Assignee: Rolls-Royce Deutschland Ltd & Co KGInventors: Wolfgang Hennig, Goetz G. Feldmann
High-Hardness Atomized Powder, Powder for Projecting Material for Shot Peening, and Shot Peening Method Using SamePublication number: 20140090222Abstract: There is disclosed a high-hardness atomized powder comprising in mass %: 2 to 8% of B; and one or two or more of Ti, Cr, Mo, W, Ni, Al, and C in an amount satisfying the following expression: 0?(Ti %/10)+(Cr %/25)+(Mo %/10)+(W %/6)+(Ni %/10)+(Al %10)+(C %/1)?1.00, the balance being Fe and unavoidable impurities, and having a particle diameter of 75 ?m or less. The powder, which has high hardness and is inexpensive, is particularly suitable for a powder for a projecting material for shot peening.Type: ApplicationFiled: March 23, 2012Publication date: April 3, 2014Applicant: SANYO SPECIAL STEEL CO., LTD.Inventor: Toshiyuki Sawada
Patent number: 8650920Abstract: A method and device for surface peening, particularly ultrasonic shot peening, of a component in the region of a passage opening is disclosed. A vibration device impinging the blasting material is disposed on one side and a counter-element is disposed on an opposite side relative to a component region having the passage opening. The counter-element is disposed at a distance relative to the corresponding side of the component region.Type: GrantFiled: June 6, 2008Date of Patent: February 18, 2014Assignee: MTU Aero Engines GmbHInventors: Erwin Bayer, Eggert Reese, Juergen Steinwandel
Patent number: 8627695Abstract: A method for ultrasound shot-blasting by a cloud of balls set in motion through contact with a sonotrode having one metallic surface including an area of difficult access, characterized in that the surface is that of a hook axially restrained on a turbomachine blade including a groove provided between the hook and the base of the blade, and the cloud of balls is contained in a chamber encompassing the groove and the surface portion outside the groove.Type: GrantFiled: April 17, 2009Date of Patent: January 14, 2014Assignee: SNECMAInventor: Ana Viguera Sancho
Patent number: 8613211Abstract: A shot peening apparatus 1 includes: a storage container 2 that stores therein shots B impacting on a shot-peening treated region U; a vibrator 5 that accelerates the shots B; a shot outlet 4 that is formed on the storage container 2, and connected to a shot collecting passage 10 through which the shots B in a container inside 2I are collected, and through which the shots B are taken out from the container inside 2I into the shot collecting passage 10; and a shot inlet 3 that is formed on the storage container 2, and connected to a shot supplying passage 9 through which the shots B are supplied into the container inside 2I, and through which the shots B are supplied into the container inside 2I from the shot supplying passage 9.Type: GrantFiled: December 11, 2008Date of Patent: December 24, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Jun Fujita, Takeshi Yamamoto, Atsushi Kamiyoshi, Mitsuru Handa, Yoshihiro Watanabe, Kanehisa Hattori, Shogo Sasaki
Patent number: 8607604Abstract: A bolt has a male screw with a surface hardening portion that has an increased surface hardness and that is applied with a compressive residual stress. The male screw is formed by cutting the bolt, and performing a process to provide at least on the surface of the male screw of the bolt the surface hardening portion that has increased hardness and that is applied with a compressive residual stress. As a result, the fatigue resistance of the male screw is improved and the bolt is effective for use in a portion where the male screw is subject to a repetitive stress.Type: GrantFiled: July 8, 2011Date of Patent: December 17, 2013Assignee: Mitsubishi Heavy IndustriesInventors: Norikazu Tezuka, Kazuharu Hirokawa, Keisuke Ihara, Kei Osawa, Hiroshi Ishikawa, Taiji Torigoe, Ryuichi Yamamoto, Yukihiro Hashimoto, Nobuyuki Izutsu, Koji Takahashi
Patent number: 8607605Abstract: A spring wire is subjected to a first shot peening process and a second shot peening process. In the first shot peening process, a first shot is projected on the spring wire at a first projectile speed. High kinetic energy of the first shot produces compressive residual stress in a region ranging from the surface of the spring wire to a deep position. In the second spring wire process, a second shot is projected at a second projectile speed lower than the speed of the first shot. The kinetic energy of the second shot is lower than that of the first shot. The low kinetic energy of the second shot increases the compressive residual stress in a region near the surface of the spring wire.Type: GrantFiled: November 11, 2011Date of Patent: December 17, 2013Assignee: NHK Spring Co., Ltd.Inventors: Akira Tange, Hideki Okada, Motoi Uesugi, Yosuke Hisano
Patent number: 8578745Abstract: The invention relates to a peening device for peening a component with a part to be peened and a part not to be peened. The peening device comprises a chamber with at least one opening located therein, wherein the opening is dimensioned in such a manner that the part not to be peened of the component can be guided there through, and a fixture for retaining the component which features a section which entirely covers the opening of the chamber when the part not to be peened is at least partially guided into said opening, and said section completely encloses the part not to be peened of the component between the adjacent region of the part to be peened of the component and the opening.Type: GrantFiled: April 13, 2007Date of Patent: November 12, 2013Assignee: Siemens AktiengesellschaftInventors: Thomas Berndt, Helge Reymann
MAGNESIUM ALLOY SHEET HAVING IMPROVED FORMABILITY AT ROOM TEMPERATURE, AND METHOD FOR MANUFACTURING SAMEPublication number: 20130209309Abstract: Provided are a magnesium alloy sheet having improved formability at room temperature and a method for manufacturing same. According to one embodiment of the present invention, the method for manufacturing the magnesium alloy sheets having improved formability at room temperature is characterized by comprising a first pretreatment step of applying residual compression stress to the surface the magnesium alloy raw material.Type: ApplicationFiled: August 29, 2011Publication date: August 15, 2013Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Young Seon Lee, Yong Nam Kwon, Seong Hoon Kang, Kwang Seok Lee, Dae Yong Kim, Ji Hoon Kim, Sang Woo Kim
Patent number: 8499597Abstract: A device for surface peening, in particular for ultrasonic shot peening, of a component of a gas turbine, having at least one vibration device that includes a surface that impinges the blasting material, and having a holding device by which a surface area of the component can be positioned relative to the surface of the vibration device, the surface of the vibration device being subdivided into at least two adjacent partial surfaces, each including an overlapping part by which a part of the surface area of the component can be treated by blasting material impinged both by the one and by the other partial surface.Type: GrantFiled: December 5, 2007Date of Patent: August 6, 2013Assignee: MTU Aero Engines GmbHInventors: Erwin Bayer, Max Niegl, Holger Polanetzki, Thomas Peschke, Thomas Dautl, Philipp Thümmler
Publication number: 20130189905Abstract: A method for improving the strength characteristics of orthopedic prostheses, such as femur necks, femoral stems, cotyloid elements, systems of the spinal column, including the step of: starting from a prosthesis made of metal, subjecting the prosthesis to a peening treatment to improve the surface hardness of the prosthesis and eliminate micro-scoring caused by the machining of machine tools, the method further including a subsequent step of performing a surface finishing treatment by vibration finishing.Type: ApplicationFiled: August 2, 2011Publication date: July 25, 2013Applicants: ADLER ORTHO S.R.L.Inventors: Aldo Toni, Patrizio Cremascoli
Patent number: 8468862Abstract: A process for treating a surface of a component to improve its surface finish and induce residual compresses stresses in a near-surface region of the component. The process entails performing a first peening operation to form residual compressive stress layers in the near-surface region of the component, and then performing at least a second peening operation to cause surface smoothing of the surface of the component while retaining residual compressive stresses in the near-surface region of the component. The first peening operation comprises wet glass bead peening at a first intensity with a first glass bead media, and the second peening operation comprises wet glass bead peening at a second intensity with a second glass bead media, wherein the second intensity is lower than the first intensity and the second glass bead media is smaller than the first glass bead media.Type: GrantFiled: February 9, 2010Date of Patent: June 25, 2013Assignee: General Electric CompanyInventor: Swami Ganesh
Patent number: 8453305Abstract: The present invention is directed to a method and apparatus for processing a metallic gear comprising providing a gear, directing a first peening media at the metallic gear thereby exposing a plurality of surfaces on the metallic gear to the first peening media whereby the strength and wear properties of the teeth roots of the gear are enhanced, directing a second peening media at the metallic gear thereby exposing a plurality of surfaces on the metallic gear to the second peening media whereby the KSI of the surface of the gear is enhanced, providing a container, placing a fine finishing medium in the container, placing the gear with the fine finishing medium in the container, coupling vibrations to the container to vibrate the fine finishing medium with the wetted gear, removing the gear from the container, washing the gear and rinsing the gear with rust inhibitor.Type: GrantFiled: July 14, 2010Date of Patent: June 4, 2013Assignee: Engineered Abrasives, Inc.Inventor: Michael J. Wern
Patent number: 8418332Abstract: Surface texturing is employed to modify the topography of one or more surfaces (radial or cylindrical) of the bearing system for a roller cone rock bit. The surface texturing results in a dimpled surface which retains additional lubricant helpful in reducing friction in the boundary and mixed lubrication regimes. Shot peening is disclosed as one method for texturing the desired surface.Type: GrantFiled: March 5, 2009Date of Patent: April 16, 2013Assignee: Varel International Ind., L.P.Inventor: Xiaobin Lu
Patent number: 8375542Abstract: When manufacturing slender metallic components (9) by cutting shaping from pre-manufactured forgings (1), the respective component (9) upon finish machining by cutting is dimensionally inspected to determine deformations (a) induced by manufacture, as compared to the nominal position, and on the basis of the measuring result the position of tensile stress areas (4) in rim layers of the component (9) is determined. For positionally balancing the component (9), the tensile stress areas (4) causing deformation of the component (9) are subjected to controlled shot peening at a specified intensity.Type: GrantFiled: July 27, 2009Date of Patent: February 19, 2013Assignee: Rolls-Royce Deutschland Ltd & Co KGInventor: Rainer Mielke
Publication number: 20130004317Abstract: A method of making a turbine rotor is disclosed. The method includes forming a last stage disk preform having a disk axis, the preform having a rotor face and an opposed shaft face, the rotor face having a circumferential, axially-extending rotor rib protruding therefrom, the shaft face having a circumferential, axially-extending shaft rib protruding therefrom, the disk preform comprising a disk preform material. The method also includes joining the rotor rib to a rotor preform to form a rotor joint, the rotor preform comprising a rotor preform material. The method further includes joining the shaft rib to a shaft to form a shaft joint, the shaft comprising a shaft material, wherein the disk preform material is different than the rotor preform material and the shaft material.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Swami Ganesh, Steven Louis Breitenbach, Robin Carl Schwant
Patent number: 8332998Abstract: A method of shot peening in which with respect to a carburized and quenched metal part, only its surface abnormal layer detrimental to the fatigue strength thereof is scraped without scraping of the martensitic structure underlying the surface abnormal layer, namely, in which the fatigue strength can be rendered stable and enhanced without surface cracking. As bombardment shot, use is made of a shot with hardness higher than that (first hardness) of the surface abnormal layer occurring at a surface layer portion of metal part prior to shot peening but lower than that (second hardness) of the martensitic structure.Type: GrantFiled: August 25, 2006Date of Patent: December 18, 2012Assignee: Sintokogio, Ltd.Inventor: Yuji Kobayashi
Patent number: 8322004Abstract: A metallic fuel system component includes an internal surface and an external surface. The metallic fuel system component is made by inducing compressive residual stress in only a portion of the internal surface of the metallic fuel system component by transmitting a laser shock wave through the metallic fuel system component from the external surface to the internal surface.Type: GrantFiled: April 29, 2009Date of Patent: December 4, 2012Assignee: Caterpilar Inc.Inventors: Stephen R. Lewis, Alan R. Stockner, Dennis H. Gibson, Marion B. Grant, Jr., Avinash R. Manubolu
Patent number: 8317943Abstract: Disclosed is a ball for a constant velocity joint, and a method for producing the same. The ball for a constant velocity joint is produced via a quenching step for heating a spherical body consisting of a material corresponding to a high carbon chromium bearing steel regulated by Japanese Industrial Standards (JIS) to 840-900° C. and then cooling the spherical body under such a condition as 10-25 vol. % of austenite remains up to a first part where the depth from the surface is 0.1 mm, a step for tempering the spherical body at 150° C. or more, and a step for shot peening the spherical body and imparting a compression residual stress of ?1000 MPa or more to a region reaching second part where the depth from the surface is 0.2 mm.Type: GrantFiled: May 22, 2009Date of Patent: November 27, 2012Assignee: Honda Motor Co., Ltd.Inventors: Takafumi Murakami, Naoto Shibata, Shunta Osako
Patent number: 8308150Abstract: A spring wire with hardness of 50 to 56 HRC is subjected to first and second shot peening processes within a warm working temperature range of 150 to 350° C. In the first shot peening process, the first shot of a shot size of 1.0 mm or more is used. In the second shot peening process, the second shot smaller in shot size than the first shot is used. Through these shot peening processes, compressive residual stress is imparted to the spring wire. The spring wire includes a residual stress increase part, residual stress peak part, and residual stress decrease part. In the residual stress decrease part, a part including the compressive residual stress magnitude of which is equivalent to the magnitude of the compressive residual stress at the surface of the spring wire exists at a position at a depth exceeding the permissible pit depth.Type: GrantFiled: March 26, 2010Date of Patent: November 13, 2012Assignee: NHK Spring Co., Ltd.Inventors: Akira Tange, Hideki Okada, Isao Sumiyoshi, Mitsuhiro Sugiyama
Patent number: 8252130Abstract: Surface processing of titanium alloy members for aerospace equipment imparts high wear resistance, lubricity and high fatigue strength. The method includes an oxygen diffusion step for causing oxygen to diffuse and penetrate in solid solution form into a surface of a titanium alloy member under an oxygen-containing gas atmosphere and a particle bombardment step for bombarding the surface of the titanium alloy member with an airflow containing particles. The aerospace equipment can include a flap rail member and slat rail member for aircraft.Type: GrantFiled: February 16, 2005Date of Patent: August 28, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kazuyuki Oguri, Takashi Kimura, Takahiro Sekigawa, Takayuki Takahashi
Patent number: 8151613Abstract: The object of the present invention is to provide a method for shot peening by which a compressive residual stress that is higher than any achieved by the conventional method can be achieved while the thickness of the processed material that is scraped is suppressed. The method is characterized in that the shot materials are shot against the processed material that has the hardness of 750 HV or more that is calculated from equations (1) to (3) below. The shot materials have Vickers hardness that is higher than the hardness of the processed material by 50 HV to 250 HV. The thickness of the processed material that is to be scraped is suppressed to 5 ?m or less. HV(m)={f(C)?f(T,t)}(1??R/100)+400×?R/100??Equation (1) f(C)=?660C2+1373C+278??Equation (2) f(T,t)=0.Type: GrantFiled: November 21, 2008Date of Patent: April 10, 2012Assignee: Sintokogio, Ltd.Inventors: Ryohei Ishikura, Takashi Kano, Makio Kato, Yuji Kobayashi, Satoru Ujihashi, Kiyoshi Okumura
Patent number: 8113025Abstract: Impact consolidated powders form deposits that are densified by substantially simultaneous shot peening of the impact consolidated powder.Type: GrantFiled: September 10, 2008Date of Patent: February 14, 2012Inventors: Ralph M. Tapphorn, Howard Gabel
Patent number: 8091192Abstract: A device for surface blasting, e.g., for ultrasonic shot blasting, components, e.g., gas turbine components, includes at least one vibrator having an oscillating surface, e.g., having at least one ultrasonic sonotrode, the or each oscillating surface of the or each vibrator being adjoined by a machining chamber for receiving a section to be blasted of the component to be machined. The machining chamber is bounded in its cross-section by at least three sides, e.g., by at least two substantially vertical sides and by at least one substantially horizontal side. At least the substantially vertical sides of the machining chamber are formed by oscillating surfaces of in each case one vibrator.Type: GrantFiled: August 5, 2005Date of Patent: January 10, 2012Assignee: MTU Aero Engines GmbHInventors: Erwin Bayer, Thomas Dautl, Thomas Peschke, Holger Polanetzki
Patent number: 8051565Abstract: A method of reducing crack propagation in an airfoil includes: providing an airfoil having a root spaced apart from a tip, spaced-apart leading and trailing edges, a suction side extending from the leading edge to the trailing edge, and an opposed pressure side extending from the leading edge and the trailing edge, supporting the airfoil against bending loads; and burnishing the airfoil using a burnishing element, so as to create at least one burnished section of residual compressive stress, the at least one burnished section being located adjacent the leading edge and spaced from the leading edge by an offset distance selected so as to avoid deformation of the leading edge.Type: GrantFiled: December 30, 2006Date of Patent: November 8, 2011Assignee: General Electric CompanyInventors: Alberto Luna, Joshua Leigh Miller, William Terence Dingwell, Michael Jay Brunck, William Lee Imhoff, Paul Moncelle, Dale Robert Lombardo, Andrew Philip Woodfield
Austenitic stainless steel tube for boiler with excellent resistance to high temperature steam oxidationPatent number: 8034198Abstract: The present invention relates to an austenitic stainless steel tube for boiler, used for superheater or reheater in thermal power plant, giving excellent resistance to high temperature steam oxidation, in particular to an austenitic stainless steel tube containing 16 to 20% Cr by weight, and being cold-worked at the inner surface of the tube. The Cr concentration in the vicinity of the inner surface of the steel tube is 14% by weight or larger, and the hardness at 100 ?m depth from the inner surface of the steel tube is 1.5 times or larger the average hardness of the mother material or is HV 300 or larger.Type: GrantFiled: August 23, 2006Date of Patent: October 11, 2011Assignee: NKK TubesInventors: Yusuke Minami, Hitoshi Iijima, Motohisa Yoshida, Toshihiko Fukui, Tatsuo Ono
Patent number: 8024846Abstract: A method for preparing a surface includes providing an article having an article surface, thereafter first processing the article surface to establish a first residual compressive stress state and a first surface roughness in the article surface, and thereafter second processing the article surface by surface compressive texturing to establish a second residual compressive stress state and a second surface roughness in the article surface. The second surface roughness is quantitatively less than the first surface roughness, and substantially no material is removed from the article surface in the step of second processing.Type: GrantFiled: January 27, 2006Date of Patent: September 27, 2011Assignee: General Electric CompanyInventors: Alberto Luna, Jeffrey F. Wessels, Dale R. Lombardo
Patent number: 8020295Abstract: Gas turbine engines systems and related methods involving dimensionally restored fasteners are provided. In this regard, a representative method for dimensionally restoring a mechanical fastener for a gas turbine engine includes: providing a mechanical fastener; and relocating existing material of the fastener such that a dimension of the fastener is restored.Type: GrantFiled: October 18, 2007Date of Patent: September 20, 2011Assignee: United Technologies Corp.Inventors: Derek W. Anderson, Allen W. Brown
Patent number: 7992416Abstract: Ultrasonic peening treatment is desirable where an application of a compressive stress is helpful to reduce the incidence of crack formation on highly stressed parts. Ultrasonic peening treatment can be performed in field applications without requiring a rotor to be removed from the machine. The system includes an acoustic element that excites peening media within a peen chamber. A frame is attachable to an assembled turbine rotor component and includes support structure engageable with the acoustic element. The frame is cooperable with a chamber tooling that defines and encloses the peen chamber together with the turbine rotor component.Type: GrantFiled: May 12, 2006Date of Patent: August 9, 2011Assignee: General Electric CompanyInventors: Raymond Joseph Stonitsch, Diane Marie Beagle, Jean-Michel Duchazeaubeneix, Patrick Cheppe, Philippe Jacob, Vincent Desfontaine
Patent number: 7987569Abstract: A high performance main bearing cap has particular surfaces densified for improved fatigue crack resistance. The surfaces densified are the bolted face inside of a perimetral margin and outside of bolt head interface areas around the main bolt holes, the surfaces of the main bolt holes and the side bolt hole threads. Preferred methods of densification are single needle programmable pattern peening of the bolted face peened area, over-burnishing of the bolt holes, and forming the threads rather than cutting them for the side bolt threads.Type: GrantFiled: October 22, 2007Date of Patent: August 2, 2011Assignee: GKN Sinter Metals, LLCInventors: Terry M. Cadle, Susan M. Cadle, legal representative, Joel H. Mandel, Donald J. Phillips
Patent number: 7984537Abstract: Both the inner and outer circumferential surfaces of a coil spring are peened by passing sequential segments of the spring around offset pulleys mounted within a peening cabinet. As the spring is pulled around one of the pulleys, the coils fan out from the pulley to permit the peening media to impact portions of the inner and outer circumferential surfaces of the spring, and as the spring is pulled around the other pulley, the portions of the surfaces not peened as the segment traveled around the first pulley will be peened.Type: GrantFiled: March 1, 2007Date of Patent: July 26, 2011Assignee: Electronics Inc.Inventor: Jack Champaigne
Patent number: 7966856Abstract: Solutions for robotic fastener peening in turbine machines are disclosed. In one embodiment, an apparatus includes: a peening machine having a peening head; a robotic apparatus including: a robotic arm coupled to the peening machine; and a base member coupled to the robotic arm, the base member mounted independently of the machine element; a vision system for locating a fastener on the machine element; and a control system coupled to the vision system, the peening machine and the robotic apparatus, the control system configured to control movement of the robotic apparatus and the peening machine based upon vision system data and spatial information about the fastener and the machine element.Type: GrantFiled: December 15, 2009Date of Patent: June 28, 2011Assignee: General Electric CompanyInventors: Salahuddin Razi, Brian D. Albin
Patent number: 7950121Abstract: A method for rounding edges of parts, in particular of turbo engines, is disclosed. An edge to the surfaces is rounded, the edge being created by at least two adjacent surfaces of the part. A blasting jet consisting mostly of abrasive particles is directed at its center approximately tangentially to the angle bisecting line between the surfaces at the edge and is moved at a defined rate of advance in relation to the part along the edge such that there is a defined removal of material of the part with rounding toward the surfaces.Type: GrantFiled: March 20, 2004Date of Patent: May 31, 2011Assignee: MTU Aero Engines GmbHInventor: Klemens Werner
Patent number: 7946009Abstract: A method of manufacturing a vehicle suspension component, such as a helical coil spring, includes the step of rotating a first impeller to project ceramic peening media in a first direction toward the vehicle suspension component to peen a surface section of the vehicle suspension component. In one example, the vehicle suspension component is peened with metal peening media before peening with the ceramic peening media.Type: GrantFiled: April 17, 2007Date of Patent: May 24, 2011Assignees: MSSC US, Saint-Gobain Centre de Recherche Et d'Etudes EuropeenInventors: Jeffrey Paul Dixon, James Hall, Ryan Versluis, Joseph A. Fader, Francois-Xavier Abadie
Peening Device for Peening Welds Inside Steel Submarine Pipes, Process for Producing Steel Submarine Pipes Using Such a Device, and Submarine Connection PipePublication number: 20110107571Abstract: A peening device suitable for peening annular weld zones inside undersea pipes, the device comprising at least one peening tool, with at least one hammer actuated to perform radial reciprocating movement in translation for peening against the inside surface of the pipe and/or said weld, wherein: said peening tool has a single hammer; and said hammer is pivotally mounted so as to be capable of varying its angle of inclination relative to the surface for peening; and said device includes a carriage suitable for moving in axial longitudinal translation XX inside a pipe and for supporting means for moving said peening tool in longitudinal and radial translation, and in rotation relative to said carriage; and said hammer co-operates with means for actuating radial reciprocating movements in translation by peening by making use of electromagnetic energy and reciprocating motion inside a solenoid coil, preferably also in co-operation with a spring.Type: ApplicationFiled: July 10, 2008Publication date: May 12, 2011Applicant: Saipem S.A.Inventors: Eric Kerdiles, Jean-Yves Goalabre, Xavier Rocher
Patent number: 7934407Abstract: A process for producing a metallic component of a structural member or the like used in an aircraft or automobile or the like, the process including shot peening the surface of a metallic material, wherein the fatigue properties of the metallic material are improved with almost no variation in the surface roughness over the course of shot peening. Shot peening the metallic material surface uses a shot material having an average particle size of not more than 200 ?m, and the ratio of the surface roughness of the metallic material surface following the projection step relative to the surface roughness of the metallic material surface prior to the projection step is not less than 0.8 and not more than 1.5.Type: GrantFiled: March 14, 2007Date of Patent: May 3, 2011Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kazuyuki Oguri, Takahiro Sekigawa, Akiko Inoue
Publication number: 20110074079Abstract: A manufacturing method of a coil spring for an automobile suspension includes forming a material into a coil shape; performing a heat treatment step on the material; performing a warm shot peening step on the material, and performing a hot setting step on the material. By performing the warm shot peening step prior to the hot setting step, a stronger compressive residual stress is imparted in a direction along which a large tensile stress acts during actual use of the coil spring, thereby improving sag resistance and durability of the coil spring. A coil spring is also manufactured according to this method.Type: ApplicationFiled: September 28, 2010Publication date: March 31, 2011Applicant: CHUO HATSUJO KABUSHIKI KAISHAInventors: Tomohiro Nakano, Takayuki Sakakibara, Takanori Kuno, Shingo Mimura, Masami Wakita
Patent number: 7832243Abstract: A shot-peening device(s) is installed on a side of a cabinet defining an ejection chamber in the cabinet. Shots ejected from the device to a workpiece fall and are conveyed in a horizontal direction by a horizontal screw conveyor positioned above a lower end of the cabinet and then conveyed upward by a vertical screw conveyor whose base end is above the lower end of the cabinet. The shots pass from an upper section of the vertical screw conveyor through a chute to reach an opening/closing gate. When the gate is opened and the shots are supplied to the device(s) for re-ejeciton, a portion of the shots is cause to overflow from the gate. The overflowed shots are caused to pass through a separator to remove impurities and then returned to the horizontal screw conveyor.Type: GrantFiled: May 19, 2005Date of Patent: November 16, 2010Assignee: Sintokogio, Ltd.Inventors: Koji Ushida, Mitsuo Ishikawa, Hiroaki Watanabe, Hideaki Kaga, Nobuyoshi Kawai, Akikazu Yokoi


text:
Rights and Reason: An Introduction to the Philosophy of Rights [Book Review]
International Journal of Philosophical Studies 13:285-289 (2005)
In this review I consider Gorman's arguments for redescrbiing the history of ethics, from Plato to Isaiah Berlin, as the history of theories of human rights, and for the conclusions that human rights are dependent, that they change over time, and that they may conflict with each other. I disagree with his interpretations of Plato, Hobbes, and Kant, as well as the idea that their moral theories can be converted into theories of human rights without loss, and I argue that his various conclusions about human rights depend upon assumptions - such as that ethics is essentially concerned with motivation, that human nature is changing to the extent that human reason is changing, and that moral reality is inconsistent – that many would reject. Along the way I point out various blunders, such as the claim that that the Hobbesian social contract is a "covenant with the sovereign", and the claim that, according to Kant, "If I act wrongly... I may be acceptably treated as a means."
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What to watch.
This programme profiles the man described as probably the best ever international referee. Clive relives the highlights of his career and the disappointments. He failed to achieve his international ambition of refereeing a World Cup Final as he fell foul of officialdom.
Former Wales and British Lions captain and coach John Dawes tells why he believes Norling was such an outstanding practitioner of his art. Rugby legend Ray Gravell talks about Norling's presence and empathy with the players as well as the time when he paraded at Ray's beloved Stradey Park in tight, tight shorts and a curly perm which drew wolf whistles from female and male supporters alike!
Later with Jools Holland (BBC2 Wales,11.35pm) Joining Jools this week are rock giants Radiohead,Billy Corgan's post-SmashingPumpkins band Zwan, and Cuban legend and Buena Vista Social Club star Ibrahim Ferrer.
Radiohead are Oxford's biggest musical export who return on the eve of the launch of their sixth studio album, Hail to the Thief. Billy Corgan put together his first official post-Pumpkins band,Zwan,in late 2001 after a brief stint performing with New Order.
Ibrahim Ferrer began performing at the age of 14. In the 1950s,he was fronting Pacho Alonso's Havana- based orchestra and in 1997 was lured out of retirement to make his recording debut.
Football. 274723 5.25Countdown.(t)(rpt)4151656
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- 1
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The Ape Who Guards the Balance
- The Amelia Peabody Series, Book 10
- By: Elizabeth Peters
- Narrated by: Samantha Eggar
- Length: 6 hrs and 35 mins
- Abridged
The prospects for the 1907 archaeological season in Egypt seem fairly dull to Amelia Peabody. Her adored husband, Professor Radcliff Emerson, has been ignominiously demoted to examining only the most boring tombs in the Valley of the Kings, but they are determined to make the most of a bad situation. This year, however, the legendary land of the pharaohs will yield more than priceless artifacts, for the desert guards even deeper mysteries that are wrapped in greed - and sealed in murder.
Not as good as Barbara Rosenblatt!
- By julie a warren on 21-10-09
- The Ape Who Guards the Balance
- The Amelia Peabody Series, Book 10
- By: Elizabeth Peters
- Narrated by: Samantha Eggar
Horrendous. Read the book instead.
Reviewed: 25-01-15
What could have made this a 4 or 5-star listening experience for you?
This book has a horrendous narrator who mis-pronounced all sorts of words. This performance doesn't compare in the slightest to the excellent readings by Barbara Rosenblat of the rest of the series.
If the narrator wasn't irritating enough, the editor who abridged the book presumably used the dartboard methodology for deciding which sections to cut. The story veers wildly from one scene to the next and with absolutely no warning. Only half way through a scene do you realise that this is not Ramses talking to David, but Mrs Emerson talking to the professor. It's so bad it's almost funny. Are we in the back streets of Cairo, at the dig, dining at Shepherds or on a boat? Who knows?! It's all the "fun" you can expect should you misguidedly buy this terrible audio book. Is this Nefret's personal thoughts, Mrs Emerson's letter to Enid, or someone speaking? Perhaps you could turn it into a drinking game with friends. Guess the speakers and setting and check in the paperback to confirm! Some sections are punctuated by bizarre harp twanging. The music is wildly out of place with the book, but at least you realise the scene is over.
Don't hope to follow the plot. Luckily I'd read the book but my poor husband had no idea what was going on some of the time. Why has a book so rich in detail and sub-plot been so mangled in being abriged?
Would you be willing to try another book from Elizabeth Peters? Why or why not?
Seriously, pick *any* other Elizabeth Peters book. I have a whole library of the Barbara Rosenblat audiobooks and all the paperbooks too. They are brilliant fun. This is the one rotten apple that has been mangled by an incompetent narrator and a careless editor.
How did the narrator detract from the book?
Aside from the plethora of mis-pronounced words, the inability to sustain chosen accents gets rather aggravating. Speak with an accent or don't. I don't care which you choose, just don't attempt an accent and then let it fade out if starts to get arduous!


text:
Customer Ratings & Reviews
Samsung - Galaxy Tab S4 - 10.5" - 64GB - Black
Customer image gallery
Customer ratings & reviews
This Galaxy Tab S4 Is An Above Average TabletPosted
This is a really well made and good looking tablet, Samsung's decision to do away with the physical home button on the front was a good idea, as this tablet looks better than most because of having the smaller and equally sized bevels on all sides. The Iris scanner unlocks the tablet very quickly once the eyeballs are in proper view of the camera. The Iris scanner even works in the dark, as there is an infrared light that is on the front of the tablet which emits infrared light that illuminates the face area when the scan is in progress. The infrared light that is emitted, is in the spectrum of light that is not visible to the human eye. I tested the iris scanning process while I had my night vision security camera pointing at myself, and when I viewed the video, I was surprised how much infrared light was actually emitted towards my face during the iris scanning process. The glass back on the Samsung Galaxy Tab S4 is not really my favorite material for the back surface, as glass does not really seem to have any advantage over a more durable aluminum panel for the back of a tablet. I cannot imagine a scenario where dropping the tablet would not result in cracking the back glass panel, with that said, it is made of Gorilla Glass, but if you buy this tablet, it would probably be best to also purchase a shock absorption case. I have seen a YouTube review of the Samsung Galaxy Tab S4 which claimed that the included Samsung S-Pen felt a bit light and not premium, I do not agree with that statement. I found the S-Pen to be quite perfect in length and weight, and the newly designed thinner pointier tip slides over the screen smoother, since there is less friction from a bulkier tip. Also, this Samsung S-Pen does not require any batteries, so I am guessing this is part of the reason it weighs less compared to other digitizers which require batteries. The power and volume buttons all have a quality feeling clicking mechanism, which is to be expected on a premium smart device. Using the Samsung Galaxy Tab S4 is quite fun compared to the smaller screen on an Android Smartphone, I actually found myself looking forward to using this tablet, and this is not nearly as common with my equally priced Smartphone. The only thing which might make using this Samsung Galaxy Tab S4 less desirable compared to a Smartphone, is if the tablet had to be held in the hand while using it. I found that holding the tablet while using it can be a hassle, as the tablet does have a bit of weight to it, and having a nice tablet stand to hold it while it is in use, is suggested. With my review I included pictures of the tablet stand that I made, it is a glued together assembly of poplar wood pieces which rests on the arms of my recliner, and it holds the weight of the tablet while I am sitting down using it, and this allows the tablet to be used for longer periods of time without the unpleasantness of having to hold the tablet in the hand. A suggestion I have for Samsung, which would make a better tablet owning experience, is to design a better charger, as the included charger is the same style of Samsung charger that is included with every Samsung Smartphone. I am sure that the included Samsung charger has upgraded internal components allowing for the quick charging using the included USB C cable, but the charger appears a bit plain, and it does not really match the premium feel of the tablet. The included Samsung charger is sufficient, but the tablet owning experience would be improved if Samsung added a more premium charger. Overall this is one of the best tablets available at this point in the Smart technology realm, I am rating this Samsung Galaxy Tab S4 at 4.5 out of 5 stars.
I would recommend this to a friend
Brand response
Hello Scovartwo, thank you for taking time out of your day to leave us this positive feedback. Thank you for the suggestion, I will make sure to pass this along. We appreciate you being part of the Samsung family. ^Michelle
Tab S4 brings android tablets off of life supportPosted
[SHORT] The Samsung Galaxy S4 is the tablet that shouts "I GOT THIS". A formidable laptop replacement that Samsung forgot to include a keyboard and not as an extra cost option. Pros: -Build quality -All glass looks super high end -Expandable memory -A screen that you don't want to look away from -fast charging and long'ish batter life -great competitor to the ipad pro -especially designed for business users but easily made for gamers, media viewing, and selfies -cameras look great and fast (has a led flash in back like the older tab s model) -everything feels fast Cons: -Glass back makes this very fragile -seems a little heavier in the hand than the 2018 ipad -doesn't seem as bright as the 2018 ipad or current ipad pro 10.5" -most android apps still not optimized -Samsung doesn't include the latest cpu like apple does (SD835 = 2017) -some bloatware that includes Microsoft Suite -No keyboard included standard, how are you supposed to be a laptop replacement [LONG STORY] My experience with android os based tablets is they get old fast. Meaning they tend to slow down and stop receiving OS updates. The iOS counterpart even after a couple of years keep their speed and continue to receive OS updates. Will Samsung break the tradition and support this tablet after a year or two? Let us hope so because this tablet is the nicest tablet anyone has brought to market. Once I opened the box, I didn't want to put the tablet down. Everything I've watched on this tablet looks amazing. Other android tablets and the ipad tablets cannot match the screen on this thing. But one thing that scared me a little bit during setup, the lower half of the screen had some strange anomaly. Almost like gravity was pulling on the contents of the screen pulling it to the right side. I factory reset and it went away thankfully. I wish samsung included a screen protector on it from the factory. I would hate to scratch the screen on such a nice unit. Fingerprints I can wipe off. Yes, this tablet is a fingerprint magnet. Get prepared to wipe the rear glass a lot unless you slap on a skin or something. Samsung didn't include a keyboard so I couldn't use the DEX feature Samsung advertises on the box. WIFI signal was great throughout my house and speedy. It comes with a wall charger (model EP-TA20JWE ), S pen with replacement tips, and charging cable. Would of been a 5 star review had it came with keyboard to experience the DEX feature.
I would recommend this to a friend
Great Tablet, some minor quibblesPosted
The Samsung Galaxy Tab S4 is a 10.5" android tablet. I was really excited to play with this. I'm a Galaxy Note user so having a pen is almost a required part of my android experience now. My last android tablet was an 8.4" tablet with great battery life. The 10.5" screen and lightweight build makes this a pretty compelling device and if the battery life is comparable to my last tablet, would be a strong weekend contender. Tablet setup is pretty simple, your usual android fare. The screen really is nice, with great viewability and brightness. The pen writes very well on the screen. I'm pretty pleased with the size and writing texture thought it would be nice if there was some way (magnetically perhaps) to dock the pen with the tablet. The screen size is great, so great that it needs a higher resolution or higher DPI setting. I've been looking for a way to bump this up, but so far to no avail. The front and rear cameras are decent quality. I'm used to cameras on tablets being substandard so it's great to have decent shooters here. Security is pretty much everything available on the phones, minus a fingerprint sensor. I use the iris unlock which works quickly and flawlessly. The pen has the same behavior as the previous generation S Pen (doesn't have the features of the new Note 9). It works well, and I had no complaints. I'd like to write more dense notes, so not having the ability to reduce the stroke width or screen DPI. I found that I ended up using the pen to navigate the UI more than my fingers with this tablet. I think it has to do with the size. It's definitely bordering on something that requires a knob on the back or keyboard dock to hold and use comfortably. Unfortunately, the weight necessary to hold something this large one-handed comfortably for hours at a time is pretty low. Performance wise, I found the tablet very responsive and snappy. Over wifi, it maintained a good connection to my access point, regardless of where I was in the house. It is not pocketable like my 8.4" tablet, but I think I was happy carrying it around as I moved place to place - the only downside being having to remember to grab the pen as I've previously mentioned. Battery life is pretty good given the size. I only hit about 10 hours of use throughout the day after my first charge which is quite impressive given the device/screen size, thickness, and weight. A cool feature of this tablet, which I've not yet tested, is having Samsung Dex built-in. This is a desktop environment that makes the tablet more chromebook-like. The keyboard dock accessory is looking more and more enticing, so I may get to try out the Dex experience soon.
I would recommend this to a friend
Brand response
Hello Zboot, thank you for taking time out of your day to leave us this positive feedback. We appreciate you being part of the Samsung family. ^Michelle
A tablet that does so much more than just run appsPosted
The recently launched Samsung Galaxy Tab S4 has the following features: Snapdragon 835, 4GB RAM. It starts with 64 GB of storage, but you can add more with an expandable microSD. The 10.5-inch AMOLED display has a superb resolution (more pixels) and a small, thin bezel, thus eliminating the Home button. It is rich in sound quality thanks to the Dolby Atmos surround sound with quad stereo speakers. It has a really long battery, 7300mAh, giving it about 16 hours of video playback. You get a rapid charger (with USB-C) with the Tab S4, and out of the box, it only takes about 2 hours to fully charge up. It comes with additional stylus tips and a pair of tweezers to change out a new tip. The S-pen is also included and it is awesome with its laser precision, allowing you to navigate the tablet with air command functionality. Even better, it doesn't need specially sized batteries like the stylus for my laptop. I have a Samsung Note 4 phone so I was able to apply my knowledge of air command to the tablet. I LOVE the screen off memo feature and text translation with the pen. There is an iris scanner for security when logging in, but I found it awkward to have my face directly in front. It wasn't easy to angle the tablet so it didn't consistently work every time I turned it on. The tablet was easy set up. As I have an Android phone, all my apps and information synched up super quick. As a non-Apple user, I found I really liked the familiarity I had with the Android system. The built in DeX functionality is software feature to convert the tablet into a desktop interface for productivity with multiple windows and Windows shortcuts. You can connect it to a keyboard or a Bluetooth mouse and project on a separate monitor or mirror. On the downside, in order to edit and save work in Word, PowerPoint, etc, you need to log in with an Office 365 subscription. I ended up purchasing Samsung's Book Cover Keyboard in order to utilize the DeX mode as well as to have a place to secure the stylus and protect the tablet as it has a glass back. At this time, if you purchase the two items together there is a 50% savings on the Book Cover keyboard that I encourage you to take advantage of. In order to maximize the productivity features that the Tab S4 offers, and so that it isn't used simply to run apps or watch videos, a keyboard is a necessity. While I really like the Tab S4 and plan to use it with so much that I do, my rating of the Samsung Tab S4 is directly a result of this necessary additional purchase.
I would recommend this to a friend
Brand response
Hello NBCTeach05, thank you for taking time out of your busy day to leave feedback on this tablet. ^Michelle
Take back what I said about the iPad...for nowPosted
Got me an iPad Pro a few months ago because I got sick of having to buy a new dang Android tablet every two years just to have the most recent Android version. If it weren't for the guys on XDA doing stuff for free that MULTIBILLION $$ can't do I'd have given up on Android a while back. So with the iPad I though I had the best "Google" tablet with Chrome and all the essential Google data farming programs I use. I was wrong. I could't not having a back button and having to go to the top left to go back. No WebM support. All the browsers felt like some kind of version of safari, even Firefox. On Android the browsers are a dumbed down version of the desktop versions. On Apple they're dumbed even further down. So, back to this tablet. Big screen, fast processors, nice speakers, almost iPad like standby (which stinks big time since Oreo update on my s2. You have to kill wifi on standby or it drains quickly), and a nice pen. Scrolling is responsive as most my other Android tablets have been - until a year or so afterwards. Rooting is easy as can be with an unlocked bootloader and AshyX (whom I've donated for every tablet he's tweaked TWRP for that I own). Samsung has included quite a few extras that almost make rooting not worth it, but with Magisk you can hide root and still enjoy some of Sammy's extras. The routine are very good but not Tasker good. They can set up simple "macros" based on time, place, wifi, etc. Tasker just takes it a few steps further but requires root. As usual AMOLED screen is gorgeous. There are some LCD screens that look nice, but none look as good as an AMOLED. I really should have gotten this on release date not have wasted the money on the iPad Pro and Pencil. I'm an android guy and I just can't give up some of my freedom - at the cost of my privacy (and I hate that trade-off). I'm pretty sure in two years I'm gonna be whining about how slow and choppy this is, and that I'm not getting updates any more because that's how Samsung operates. Great hardware poor as heck support.
I would recommend this to a friend
Mostly a great update, Loss of fingerprint is :-(Posted
As far as the upgrade path of Samsung Galaxy Tab S series, in many ways this is a wortwhile upgrade. The screen is much nicer than my Tab S2/S3 perhaps due to removal of physical home button. The tablet seems responsive (quick). I was a tad bit upset (minus one star) when one of my important apps which uses a fingerprint reader (it was restored from backup on tablet startup) seemed to crash every time it got to the login screen -- my best guess is that this was where the fingerprint sign in prompt used to be and this tablet is missing that feature it appears. On a strong positive, I tested out the DeX mode (desktop like mode) and loved the experience on a tablet, it feels like you're working a laptop but with access to existing tablet apps. On a slight negative note though, with DeX you may want (and in my experience, in general i like to have) a keyboard case, and since that is not included, at the time of writing i had to choose between one Best Buy carries from the manufacturer (not in current budget) or a generic one which would ship from overseas and require waiting a month (I haven't done either) -- I won't deduct another star for this though, because this is a new tablet and more options should be available eventually. The facial recognition does seem to work fairly well either in potrait or landscape (too often i block scanner in landscape with left hand). The Daily Board seems to be a cool feature which i have to explore more, it can be used when the tablet is charging and seems to display either gallery images (in motion) or time/day/weather. Oh, one more negative in my opinion: There is no obvious place to store the pen, it doesn't attach anywhere obvious, and maybe it's supposed to be a function of the case, but as-is the pen is nice but WILL get lost or go unused without a place to carry it.
I would recommend this to a friend
Brand response
Hello RobWLINY2, thank you for taking the time to leave us this feedback. We would be happy to assist you with any issues you are having. For further assistance, please contact Samsung Customer Support via one of the following options:
1. Facebook Messenger:  http://m.me/samsungsupport
2. Twitter:  https://twitter.com/messages/compose?recipient_id=18768513
3. LiveChat or Email: https://www.samsung.com/us/support/#contact_us_for_support
4. Toll-free calling: 1-800-SAMSUNG
Excellent Android TabletPosted
First, walking around the device you find a metal frame with Gorilla glass front and back. On the sides you'll find 4 speakers, USB-C, a headphone jack (Yay!), and a tray for expandable storage. All of that said, the device looks beautiful and feels solid, if just a little heavy. On the down side, I've never been a fan of glass backs, and this one causes the device collect fingerprints like they're going out of style and to feel just a bit slippery. Both good reasons to invest in a folio. Next, turn the device on and you are greeted by an absolutely gorgeous display. The 2560 x 1600 AMOLED display is bright, vibrant, and crisp. Audio was initially a bit underwhelming; plenty of volume, but a bit flat. However, I did find that if you enable the Dolby Atmos option (off by default), the sound greatly improves. Performance has been snappy: Apps load quickly and perform well. Battery life has been more than sufficient. And the S Pen is amazing as always. Though, there is no place to internally dock the pen. A bit surprising as Samsung can seem to find a way to make this work on the much smaller Note series. Why not on a larger tablet? OS is Android 8.1 Oreo out of the box. While Oreo is not the latest version of Android available, it is a mature OS and an overall good, stable choice. The typical Samsung skinning and bloat are present (Knox, Samsung Kids, SmartThings, and MS Office...which is useless, BTW, without a 365 subscription). But because this is Android, you can really install anything you want: Don't like the Samsung launcher, calendar or keyboard? You can install any of the good 3rd party options available from the Play Store. The much touted keyboard is not included. That said, I did poke around just a bit in the new DeX software. I could see where the more desktop-like experience with a task bar and sizable windows could be useful. But without a physical keyboard and mouse, the experience is a bit hobbled.
I would recommend this to a friend
Jack of All Trades, Master of NonePosted
Pros: - S Pen comes included (which works really well compared to other stylus) - Expandable storage with micro-SD card - Uses USB-C to charge, no proprietary charging cable needed - Fast charge time - Great battery life - Facial recognition and iris scanner technology to unlock tablet (Works with glasses too) - Great for watching videos and movies - Great for light office work (emails, presentations, documents) - Thinner bezels than the Tab S3 - Premium, glass build. Feels solid in your hands - 3.5mm headphone jack included Cons: - Book keyboard cover is not included which you will want if you plan on using this for work or school (also recommend getting a mouse) - As with all Samsung products, there is some bloatware (Samsung apps that you cannot remove) - Feels kind of heavy for its size. - Thicker than the Tab S3 - Samsung Dex apps still lack behind Apple iOS apps. Dex overall is still in its infancy. It is a little clunky at times. Dex is the software that Samsung has created and targeted to productivity users. It makes the tablet look more like a traditional PC with a desktop-feel with a taskbar, windows, icon tiles, etc. - No fingerprint scanner - Not water resistant Note: There is no physical home or back button on the tablet, could be a pro or con depending on use preference I don't think this is a huge leap from the previous generation, but this is a solid upgrade if have a tablet that is 2+ years old and you are looking to upgrade to an Android model that can do a little bit of everything.
I would recommend this to a friend
Very satisfied with this tablet.Posted
So many so called professional reviews say this tablet isn't for productivity, gets very little done, it isn't for work, etc. I don't know what work they are referring to, perhaps since they are professional writers they should provide better context in their product bashing. Unlike many tablet consumers I do not use my tablet for media consumption and web browsing only. I use it for stock trading, and as a professional in IT, I also use it for work. Citrix workspace or Cisco anyconnect makes it easy to connect to my employers network where I have access to all of the tools I need such as MS Outlook, putty, all of our intranet sites, etc. Attached is a pic of me connected to my work network and using putty to login to one of my servers and restarting WebSphere. Samsung DeX makes it easy to switch between windows when I'm connected to our network, and no, you do not need Samsung's expensive keyboard for DeX, I use my old Tab S2 keyboard so I can use the touchpad. I am very pleased with this tablet.
I would recommend this to a friend
A real improvement over previous versionsPosted
The Tab S4 is the first android tablet that has features and power to be used for serous work, along with awesome clarity on the screen even for HD streaming. The sound is excellent for speakers included, but you will want some type of headphones. It finally frees me from taking my laptop everywhere I go. I would have rated it 5 stars except for he lack of good covers. The buyer should be aware there will be a learning curve due to new and more advanced features. PRO: processing power Low cost expandable memory Runs Microsoft and Google apps with no noticable difference from my laptop. Long battery life and power saving options. Excellent graphics Editing of photos can be done without transferring them to a more powerful machine. DX mode is excellent for productivity. Comes with a pen in the box. Look good in tablet or DX modes. I have not experienced the problems others have reported. Con: No cover or pen holder comes with the machine. Keyboard powered by the tablet (Samsung OEM) OEM cover and keyboard cover are cheaply made. Cost
I would recommend this to a friend
Fun and versatilePosted
I previously had the Samsung Tab 2. I LOVED it! But it is no more, and I replaced it with the Tab 4. The Tab 4 is a nice versatile tablet. I use mine as a mini laptop while traveling, and as a platform for games and movies while home. It fills these functions beautifully. I do not like that when "dex' is turned on, that the 'autorotate' is turned off. The owners manual is not as detailed as well- they do not explain what various things actually do and impact. The stylus which comes with it is a very nice bonus. But as a left handed person, I can say that the stylus must be placed more to the left than where you actually want it to be. This might not be an issue for a right handed person. This is a fun versatile tablet. It can fill any number of roles and definitely cut down on the number of electronics you travel with.
I would recommend this to a friend
Great devicePosted
I purchased the Samsung tablet to fully move over to android from Apple. I already have the S9 which works well. The tablet does everything and more the S9 can do and the screen is great. Its fast and as reliable as any other android device, i am running some emulation software no problem and it performs well. If I was to ask for one change it would be a finger print scanner on the front. However there is one thing that I have found annoying... The tablet seems to lose wifi connectivity a lot. This is particularly troublesome at home where i have ATT internet. All other products I have connect fine and there are other Ipads etc all work correctly to this wifi. I have tried the various troubleshooting guides but to no avail. I bought this as an Open Box item as I was going for a lower model. Now a little concerned that I should've gone for an original.
I would recommend this to a friend
Best Android TabletPosted
Have been looking for an upgrade to my Pixel C tablet, and this was the best Android tablet I've found. Speedy processor and beautiful high resolution screen. USB-C is a plus, faster charging and uses same cable as my cell phone and being Samsung, this also has an expandable SD slot and also comes with a S pen. Haven't had a chance to look into DeX, but looks like a nice feature to turn this into a laptop. I knocked off a star for two reasons. Main negative is that it's not stock Android which means some extra bloatware from Samsung and a longer wait for updates. Samsung also has the new Tab S5e, which is thinner and a smaller bezel than the Tab S4, albeit with a mid range processor.
I would recommend this to a friend
Very Good but Touch Response Often UnpredictablePosted
The display is excellent and the size is perfect for most uses. Two idiosyncrasies are annoying: First, the screen sometimes does not respond to finger taps. Can't find a pattern, but it's annoying. Response with the included pen is, however, nearly perfect once you get the hang of it. Second, if you are using the screen in the landscape position and put it down flat (e. g., on a table) the screen goes dark (but no data is lost). It does not do this in the portrait mode. No idea why. Still, I'd buy it again for its speed and display. If you have a recent Android phone, this will feel comfortably familiar.
I would recommend this to a friend
Some irritating issuesPosted
The screen touch sensitivity is all over the map. There are times when I really have to bang on the screen with my finger and then there are times when I don't even have to touch the icon but just get near it and things start opening. One example: while filling out this form I am to hit a button to either recommend to a friend or not. I had to hit the button four times before it finally highlighted. Other than these irritating issues it seems to be a good tablet. The only reason I bought it is because the battery in my S2 wouldn't hold a charge anymore
I would recommend this to a friend
Good but WAY OVERPRICEDPosted
This tablet is very similar to the TAB S3. The "noticeable" improvements are slightly larger screen, attachable keyboard (not included), Samsung's "DeX UI overlay which mimics a Windows style UI and facial recognition, which sometimes works and sometimes doesn't. I wanted a second tablet, and I would have bought another TAB S3, but there was a sale on the S4 which came out to the same price as an S3. I own both, and functionally, there is no noticeable difference. I would recommend buying whichever model has the lower price.
No, I would not recommend this to a friend
Great Tablet that costs.Posted
Not many premium Android tablets out there these days. This one is very premium. Awesome display, fast, Dex mode is interesting. No complaints about the experience itself. Only negative is the price point. Starting to creep up on Windows 10 tablet prices which being an Android tablet will not be able to be equal in the productivity Department. It's nice that the pen is included. Overall if you're looking for a premium Android machine to do light work but excel in media consumption this is one of the best.
I would recommend this to a friend
Glad I picked it up.Posted
In general I love Samsung products. They deliver good quality electronics. The tablet runs quick and smooth. Has good response to touch and the pen is very nice and easy to learn to use. Of course the display is excellent for movies and apps. The size is nice but sometimes I miss my older 12" Samsung Pro Tab. One essential addon is a good case or cover because it is very slick. Taking off 1 star because Samsung hasn't shown they will update the devices very often.
I would recommend this to a friend
I upgraded from an S2 and I am in love. The battery lasts a while and the quality of the resolution is gorgeous. The only issue I have is when paired with the keyboard, when the keyboard come apart or attaches to the tablet the screen logs out and turns off. It might just be a setting im missing somewhere but I havent been able to find it. Overall this is a great device and works very well for our business.
I would recommend this to a friend
Nice and quick tabletPosted
I needed a new tablet so after looking around this one had the best specs for what I needed. I like the s pen, it feels normal to hold. I like everything about this one. I did not buy the keyboard case. My friend has it and I found it to be clunky and a pain to hold. Plus it's just to expensive. The downside to this tablet is its price. I got a great deal and that was the final vote to buy it.
I would recommend this to a friend


text:
noun plural -ties
a public utility that provides more than one essential service, such as supplying both gas and electricity
A Glimpse Into The Differences Among US, UK, And Aussie EnglishAmerican, Australian, and UK English sometimes feel like apples and oranges ... and bananas? The real kicker comes when a juxtaposition of all three languages occurs (Like in this here slideshow!), because that's when their differences really shine.
Nearby words
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


text:
Fluorite is a mineral composed of calcium fluoride. The word fluorite comes from the Latin root fluo, meaning "to flow" because it has a relatively low melting point and was used as an important flux in smelting. Fluorite occurs in a large variety of deposits in different areas around the world. Notable deposits occur in Germany, Austria, Switzerland, England, Norway, Mexico, and the province of Ontario in Canada. There are a number of industrial uses for fluorite—it has been used in the production of aluminum, the manufacture of enamels and cooking utensils, and to make hydrofluoric acid. It is even used as a substitute for glass in some high-performance telescopes and camera lens elements! And back in the 19th century, it was often mined for ornamental purposes. Great item to have on hand to show off to all your friends, or for the school's science fair. Or for Grandpa, who is always trying to find interesting mineral specimens. What are you waiting for? Get this rock NOW!
Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the ones pictured but it will be similar. Price is per each piece.They come in irregular shapes, sizes and weights.
This simple but amusing magnetic toy will keep you busy for hours!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
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Imperial Russian Gilt Metal Easter Egg. Third quarter of the 19th century. Of typical form, hinged and fitted with pus... (Total: 2 Items)Click the image to load the highest resolution version.
DescriptionImperial Russian Gilt Metal Easter Egg
Third quarter of the 19th century
Of typical form, hinged and fitted with pushpiece within suspension ring, the exterior of one half applied with Khristos in Cyrillic, the other half with Voskrese, for the Russian Orthodox Easter greeting, Christ is Risen, opening to reveal an oval portrait of a lady facing left said to be that of Russian Empress Maria Fedorovna (1847-1928), wife of Tsar Alexander III, wearing somber clothes, the frame lifts on a hinge to reveal vacant compartment, with another vacant compartment opposite, lined in moiré silk-length of egg-4 in.
Purchased from St. Petersburg Shop, Paris
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