in accordance with the exemplary embodiments , a toilet seat lifter 10 includes a pedal base 12 that rests on the floor next to a toilet 14 . the term toilet seat may be used herein to refer to any toilet seat toilet lid , or combination thereof . the pedal base 12 includes a first portion 16 and a second portion 18 . in the illustrated exemplary embodiment , the first portion 16 is a rectangular , horizontal plate having a pair of substantially flat , planar surfaces , with a bottom surface in contact with a floor , and the second portion 18 is a rectangular , vertical plate extending from the first portion 16 away from the floor . the second portion 18 extends from the first portion 16 at a substantially right angle , although any angle can be used depending on the configuration of the lifter 10 and the toilet 14 . the first and second portions 16 , 18 may be unitarily formed or separately connected to one another . different configurations for the pedal base 12 may be used , for example any rectilinear shape , curvilinear shape , or various combinations thereof , to conform to different toilets , meet size requirements , or for other utility and design considerations . the pedal base 12 may be made from a plastic , metal , ceramic , or composite material , or any combination thereof . in certain embodiments , the pedal base 12 is made from any stiff , lightweight material . the pedal base 12 is connected to a mounting bracket 20 by one or more mechanical fasteners , for example by one or more bolt and wing nut combinations 22 . the mounting bracket 20 includes a first part 24 and a second part 26 . in the illustrated exemplary embodiment , the first part 24 is a pentagonal , horizontal plate having a pair of substantially flat , planar surfaces , and the second part 26 is a rectangular , vertical plate extending from the first part 24 towards the floor . the first part 24 has a slot for receiving one or more fasteners to connect to the toilet 14 . in an exemplary embodiment the slot receives the existing mounting hardware from the base of the toilet . the second part 26 extends from the first part 24 at a substantially right angle , although any angle can be used depending on the configuration of the lifter 10 and the toilet 14 . the first and second parts 24 , 26 may be unitarily formed or separately connected to on another . different configurations for the mounting bracket 20 may be used , for example any rectilinear shape , curvilinear shape , or various combinations thereof , to conform to different toilets , meet size requirements , or for other utility and design considerations . in various exemplary embodiments , the mounting bracket 20 is unitarily formed with the pedal base 12 . if the mounting bracket 20 is unitarily formed with the pedal base 12 , the second part 26 may be omitted and the first part 24 extends directly from the pedal base 12 . the mounting bracket 20 may be made from a plastic , metal , ceramic , or composite material , or any combination thereof . in certain embodiments , the mounting bracket 20 is made from metal and is coated , for example with paint , to help prevent corrosion . a pedal 28 is pivotally connected to pedal base 12 , for example via a pedal hinge 30 or other suitable pivotal connection . the pedal includes a bottom 32 , a toe lip 34 extending from the bottom 32 , and an extension arm 36 . in the illustrated exemplary embodiment , the bottom 32 is a substantially planar member with a bottom surface facing the pedal base 12 and an opposite top surface for receiving a user &# 39 ; s foot . the toe lip 34 has a first curved section extending from the bottom 32 and a concave second curved section at its free end . the toe lip 34 receives upward force applied by a user &# 39 ; s foot . the extension arm 36 extends from the pedal 28 and includes a first end , a second end , and an intermediate twist or s - shaped curved section . the bottom 32 , toe lip 34 , and extension 36 may be unitarily formed or separately connected in any combination . different configurations for the pedal 28 may be used to conform to different toilets , meet size requirements , or for other utility and design considerations . the pedal 28 may be made from a plastic , metal , ceramic , or composite material , or any combination thereof . in certain embodiments , the pedal 28 is made from any stiff , lightweight material . the pedal 28 is mechanically attached to a first end of a linkage member and an operating assembly having a lifter and a closer is connected to the second end of the linkage member . according to an exemplary embodiment , the linkage member is a connector rod 38 that connects the extension arm 36 and a seat bracket 40 . the seat bracket 40 includes a first section 42 and a second section 44 . the first section 42 includes a first aperture a and a second aperture b . the connector rod 38 may be selectively connected to the first aperture a or the second aperture b by a user . one or more mounting claws 46 extend from the second section 44 . the mounting claws 46 connect to the seat hinge 48 . in accordance with the exemplary embodiment , the mounting claws include a first hook portion and a first tab spaced by a slot for receiving the seat hinge 48 . the mounting claws 46 are unitarily formed with the seat bracket 40 or separately connected . although the exemplary mounting claws 46 are configured to engage a variety of seat hinges 48 , removable mounting claws 46 may be utilized to allow for connections to different types of seat hinges 48 . the size , shape , and configuration of the mounting claws 46 may be varied to conform to different toilets , meet size requirements , or for other utility and design considerations . in the illustrated exemplary embodiment , the first section 42 is a rectangular , vertical plate and the second section 44 is a rectangular , vertical plate extending from the first section 42 at a substantially right angle . when connected to the seat hinge 48 , the first section extends outside of the toilet 14 . different configurations for the seat bracket 40 may be used to conform to different toilets , meet size requirements , or for other utility and design considerations . the seat bracket 40 and connector rod 38 may be made from a plastic , metal , ceramic , or composite material , or any combination thereof . in certain embodiments , the seat bracket 40 and connector rod 38 are made from metal and are coated , for example with paint , to help prevent corrosion . a lift lever 50 is moveably connected to the seat bracket 40 , for example to the first section 42 . the lift lever 50 is positionable underneath a toilet seat 52 and is locked in place via a notch or an indent 54 in the seat bracket 40 . in various exemplary embodiments , the lift lever 50 is connected to the seat bracket 40 by a fastener with enough tolerance to allow sufficient movement of the lift lever 50 , for example a bolt or rivet 9 . the lift lever 50 is capable of movement in a horizontal plane and a vertical plane . in various other exemplary embodiments , the lift lever 50 may be connected to the seat bracket 40 by a hinge , for example a living hinge . in the illustrated exemplary embodiment , the lift lever 50 is an elongate , substantially rectangular member , although different configurations may be used to conform to different toilets , meet size requirements , or for other utility and design considerations . the lift lever 50 may be made from a plastic , metal , ceramic , or composite material , or any combination thereof . in certain embodiments , the lift lever 50 is made from metal and is coated , for example with paint , to help prevent corrosion . in operation , the pedal base 12 is placed next to the toilet 14 and the mounting bracket 20 is connected to the base of the toilet 14 . the seat bracket 40 is connected to the toilet seat hinge 48 and the lift lever 50 is positioned under the toilet seat 52 . it may be necessary to temporarily loosen the existing toilet seat hinge 48 bolts upon initial installation of the seat bracket 40 to allow room in the toilet hinge for 48 the mounting claws 46 . in an exemplary embodiment , the toilet hinge 48 bolts are tightened with the mounting claws 46 in place to allow space for the mounting claws 46 to be easily inserted or removed in subsequent installation and removal of the seat bracket 40 , for example without further adjusting or loosening the seat hinge 18 . when connected to the seat hinge 48 , the first section 42 of the seat bracket 40 extends outside the edge of the toilet 14 . the pedal 28 is connected to the seat bracket 40 by connector rod 38 connected to either aperture a or b . as depicted in fig3 , and in accordance with various exemplary embodiments , when a user steps on the pedal 28 and applies downward pressure , the pedal 28 is pivoted towards the pedal base 12 , moving the extension arm 36 and the connector rod 38 downward , pulling down the first section 42 of the seat bracket 40 , and pivoting the seat bracket 40 on the toilet hinge 48 . as the seat bracket 40 pivots , the lift lever 50 raises the toilet seat 52 to a raised position . when the toilet seat is raised , a user may move their foot upwards , applying force to the toe lip 34 and lifting the pedal 28 . upward movement of the pedal 28 moves the extension arm 36 and the connector rod 38 upward , which pushes up the first section 42 of the seat bracket 40 and moves the lift lever 50 back towards the toilet 14 . the rotation of the seat bracket 40 to its initial position causes it to engage the toilet seat 52 and move the toilet seat 52 to an initial or lowered position . as shown in fig4 , placement of connector rod 38 in aperture a causes the lift lever 50 to lift the toilet seat 52 to a less than vertical position so that the toilet seat 52 returns to the lowered position upon removal of the force from user &# 39 ; s foot . as shown in fig5 , placement of connector rod 38 in aperture b lifts the toilet seat 52 to a beyond vertical position , for example with the toilet seat 52 resting against the toilet tank 56 , so that toilet seat 52 remains raised when force from a user &# 39 ; s foot is removed . the seat 52 is then lowered by a user moving the pedal 28 upward . accordingly , the various exemplary embodiments described provide a toilet seat lifting and lowering device using a single pedal 28 and a user option for the seat 52 to automatically return to a lowered position or for the seat 52 to return to a lowered position by application of a force to the toe lip 34 . the single pedal 28 is capable of both raising and lowering a toilet seat 52 . the various exemplary embodiments described also provide a device capable of being installed and removed for ease of use and maintenance ( e . g ., cleaning ) of the toilet 14 . in various exemplary embodiments , the lifter device 10 is configured to retro - fit to existing toilet seats . the lifter device 10 allows user to avoid / minimize physical skin contact ( disease transmission ) and prevent strenuous effort / exertion of back , spine , shoulders etc . required to manually lower and raise a toilet seat 52 . in various exemplary embodiments , the pedal base 12 is not mounted to the toilet 14 . for example , the pedal base 12 could be sufficiently heavy to provide stability and prevent movement during use . in another alternative embodiment , the pedal base 12 is secured to the floor , for example using a mechanical connection such as fasteners , or an adhesive connection such as tape or glue . although the exemplary embodiments depict a lifter 10 configured to be positioned on the right side of the toilet 14 , the lifter 10 may be configured to be positioned on the left side of the toilet 14 or configured to be selectively positioned on either side of the toilet 14 by a user . the foregoing detailed description of the certain exemplary embodiments has been provided for the purpose of explaining the principles of the invention and its practical application , thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated . this description is not necessarily intended to be exhaustive or to limit the invention to the precise embodiments disclosed . any of the embodiments and / or elements disclosed herein may be combined with one another to form various additional embodiments not specifically disclosed . accordingly , additional embodiments are possible and are intended to be encompassed within this specification and the scope of the appended claims . the specification describes specific examples to accomplish a more general goal that may be accomplished in another way . as used in this application , the terms “ front ,” “ rear ,” “ upper ,” “ lower ,” “ upwardly ,” “ downwardly ,” and other orientational descriptors are intended to facilitate the description of the exemplary embodiments of the present invention , and are not intended to limit the structure of the exemplary embodiments of the present invention to any particular position or orientation . terms of degree , such as “ substantially ” or “ approximately ” are understood by those of ordinary skill to refer to reasonable ranges outside of the given value , for example , general tolerances associated with manufacturing , assembly , and use of the described embodiments .
an apparatus for raising and lowering a toilet seat that can easily be installed , for example by hand without tools , on a toilet , for example one that only has a seat and not a lid as commonly found in public venues . the apparatus includes a pedal base , a pedal , a seat bracket , and a lifter lever . the pedal is pivotally connected to the pedal base and coupled to the seat bracket so that movement of the pedal induces movement of the seat bracket and the lifter lever . the lifter lever is positioned under a toilet seat so that as the lifter lever is moved , the toilet seat is raised , and as the seat bracket rotates back down by reverse action on the pedal , the toilet seat is lowered .