preferred embodiment 10 of the invented vacuum cyclone seafood collection retainer shown in fig1 is comprised of a cover plate 21 , said cover plate having a diameter inside of annular retainer lip 12 sufficient to fit over the center tubular shaped sleeve section 13 . cover plate 21 has a centrally located six inch inner diameter vacuum source connection port 14 , said cover plate having external bracing 11 , and annular retainer lip 12 around the outer edge of said cover plate 21 . said retainer lip 12 fits securely over and around the top flange , ( described in fig2 ), of four - foot outer diameter tube , sleeve , or center section 13 of the cyclone . said cover plate has one or more back flush high - pressure water hose connections 62 . a seven inch inner diameter vacuum suction inlet port 19 is mounted horizontally near the top edge of said cyclone tube section 13 , proximate the lip of said cover plate 21 . said inlet port 19 is smoothly transitioned into said tube section 13 so that seafood vacuumed into said inlet port 19 make no hard contact with the inner surface of said tube section 13 , but rather gently contact the inner surface of said tube section 13 , and slow by the friction of cyclonic movement against the inner surface of said tube section 13 and fall gently to the bottom of said vacuum cyclone collection retainer 10 . the vacuum suction hose attachment end of aluminum inlet port 19 has two slots 25 beginning at the hose end of said port 19 and continuing parallel with the direction of said port 19 for four inches . said slots 25 allow a clamp to pull the seven inch inside diameter aluminum sleeve 19 tight against a six and seven eights inch outside diameter reinforced vacuum hose end placed into said port 19 . a four - inch diameter version of said port 19 may be used for small size shrimp . visual indication of the amount of shrimp vacuumed into said cyclone 10 is obtained through sight glasses 24 . structural support ring 15 is mounted circumferentially around the outside of said center section 13 midway between the ends . retainer lip 20 is attached around the bottom edge of said tube center section 13 , and fits snugly over and around the top edge of base section 17 of said cyclone collection retainer . four braced legs 18 , approximately two feet in length , support base section 17 and are attached to angle bars 22 and 23 . a bottom mounted cover 20 a is attached to said base section 17 by a spring - loaded hinge 16 . [ 0041 ] fig2 a preferred first cyclonic tube 28 shown in fig2 is a sleeve made of steel or aluminum , though vessels of other shapes and sizes and material composition may be used . tube 28 has a sidewall 29 , an annular flange 32 around the top of said sidewall 29 , and a flat annular gasket 38 cemented to the top surface of said annular flange 32 . vacuum suction inlet port 34 is positioned to feed shrimp , ice , water , and air into drum 28 against wall 29 tangentially to limit the force of impact of the shrimp against said sidewall 29 and minimize damage to said shrimp . a support ring 35 made of steel or other material is positioned near the center of the length of said tube and around the circumference of said tube . an annular flange 33 is located around the circumference of the bottom end of said tube 28 and annular retaining lip 26 is attached thereto , and positioned to hang below the bottom edge of said tube . the vacuum cyclone seafood collection retainer base section 30 has annular flange 36 around the top edge of said base section . a flat annular gasket 27 is cemented to said flange 36 . cover plate 31 has an annular retainer lip 40 mounted around the circumference of said cover 31 so that the retainer lip 40 is below the bottom surface of said cover 31 , and said retainer lip 40 will fit down around the top flange 32 of center section 28 so that cover 31 contacts gasket 38 mounted on flange 32 of center section 28 . cover plate 31 also has one or more high pressure water line connections 63 used to back flush shrimp or other sea food down and out of said cyclone retainer in the event the contents of said cyclone jam together and will not fall through the open bottom section door . base section 30 is set atop a rectangular trough through which moves a conveyer belt , and into which the shrimp laden base section 30 of the vacuum cycle seafood retainer is emptied . tube section 28 is lifted onto bottom section 30 so that flange 33 and retainer lip 26 fits over flange 36 of base section 30 , and flange 33 contacts gasket 27 of base section 30 . top section 31 is set upon tube center section 28 so that said top section contacts annular gasket 38 on flange 32 . after the three vacuum cyclone sections , top section 31 , center section 28 , and base section 30 have been assembled , a first section of vacuum supply hose is connected between vacuum supply port 37 of cover 31 and a centrally located vacuum supply tank ( not shown ). said vacuum supply tank is equipped with a liquid blocking float valve . said vacuum supply tank may connect to a second and a third section of vacuum supply hoses for connection to a second and third vacuum cyclone seafood collection retainers 10 of fig1 . the centrally located vacuum supply tank is connected in turn through a fourth section of vacuum supply hose to a vacuum source pump ( not shown ) of sufficient capacity and power to maintain a constant working vacuum for a single cyclone seafood collection retainer 10 under all working conditions . if multiple vacuum cyclone retainers 10 are connected to a common vacuum source tank ( not shown ), vacuum can be switched to the on condition for only one tank at a time . when source vacuum is supplied to the assembled vacuum cyclone retainer 10 in fig1 outside atmospheric pressure against the top cover 21 , and base section 17 , force top cover 21 and base section 17 of fig1 against gaskets 38 and 27 shown in fig2 with sufficient force to make airtight connections . a first end of a first vacuum suction hose ( not shown ) is attached to vacuum suction inlet port 25 of fig1 . a second end of said first vacuum suction hose with attached guide pole is used in a shrimp boat cargo hold to off load the shrimp cargo . said shrimp are collected into said vacuum cyclone seafood collection retainer 10 of fig1 until a visible indication of the level of shrimp collected into said vacuum cyclone collection retainer 10 , as shown in sight glasses 24 , indicates an optimum collection level and source vacuum is removed from vacuum suction source port 14 . [ 0046 ] fig3 a depicts a top view of cover plate 41 with back flush ports 64 , and designates cross section view 3 b . [ 0047 ] fig3 b shows a cross section view of top cover 46 , suction supply hose attachment section 47 , hose attachment flange 42 , and annular cover retainer lip 45 . a cross section of integral screen 44 with screen holes 43 is shown . the total area of the provided screen holes 43 is 50 % greater than the cross section area of the 6 - inch suction hose inlet so that shrimp screen 44 air flow turbulence does not impede the source vacuum . [ 0048 ] fig4 a is a top view of a second version cover 52 with back flush ports 65 and a detachable screen 53 , and defines cut away view 4 b . [ 0049 ] fig4 b shows a cut away side view of second version cover 48 , cover screen attachment 51 , screen attachment flange 50 , and cover 48 screen attachment flange 49 . [ 0050 ] fig5 a is a depiction of vacuum suction port 59 . the suction port 59 is constructed of aluminum and has one or more horizontal slots 56 at the hose attachment end . the 7 . 0 inch inside diameter port 59 will accept into it a 6⅞ inch outside diameter section of suction hose , ( not shown ). an annular aluminum ring 58 is welded into position in the vacuum suction port 59 . the reinforced end of an inserted vacuum suction hose buts against said ring 58 , that acts as a stop for said hose end . the thickness of said ring 58 is less than the thickness of said reinforced end of said reinforced vacuum hose end so that vacuumed shrimp will transition from hose to inlet port 59 and not hit any obstruction . circular clamp 57 can then be tightened and the aluminum end of port 59 will flex together and grip the reinforced end of said vacuum suction hose . [ 0051 ] fig5 b is a bottom up view of a vacuum cyclone collection retainer bottom door . said door 54 is a trap door type with spring - loaded hinge 55 . said door 54 will be held in the closed position by outside atmospheric pressure against said door due to the vacuum within the cyclone retainer even with a full load of shrimp . said door will open under the weight of the supported load of shrimp when vacuum is removed from the vacuum inlet port of said cyclone retainer . [ 0052 ] fig5 c is a second bottom up view of a vacuum cyclone retainer bottom door . door 61 is a sliding door and slides in tracks 60 . the sliding door 61 may be used when sufficient space is not available to use trap door 54 .
a new vacuum cyclone seafood collection retainer is disclosed . two men easily assemble this new cyclone collection retainer , made in portable sections , and the sections can be rotated for best orientation of the hose connections . this vacuum cyclone facilitates the use of a large - scale vacuum system to offload shrimp from the holds and bins of shrimp boats and trawlers up onto the dock and into collection tubs for weighing and processing . this new vacuum cyclone system will offload shrimp and other small seafood much faster , cheaper , and with less damage to the shrimp than the conventional methods now employed . one large - scale vacuum supply pump can be connected through a common vacuum supply tank to multiple vacuum cyclone collection retainers providing multiple unloading dockside facilities .