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Class Information
Number: 4/246.4
Name: Baths, closets, sinks, and spittoons > Opener or closer for a closet seat or lid > Lever operated opener > Four bar link
Description: Subject matter wherein the mechanical link includes two members that are each connected to a stationary rotatable joint and have a rod connected to the members by rotatable joints, where one of the members is a lever manipulated by the user while the other member or rod is or is in contact with the seat or lid, so that the motion of the lever is transmitted by the mechanical link to move the seat or lid from one position to another.










Sub-classes under this class:

Class Number Class Name Patents
4/246.5 Using a seat or lid for a link 25


Patents under this class:

Patent Number Title Of Patent Date Issued
8479323 Spring-mounted vertically held toilet seat Jul. 9, 2013
8402571 Toilet seat handle Mar. 26, 2013
8286273 Toilet foot flushing apparatus Oct. 16, 2012
8230529 Toilet seat lifting apparatus Jul. 31, 2012
7861328 Toilet seat tilting device Jan. 4, 2011
7316037 Seat lifter Jan. 8, 2008
7051383 Powered lift toilet seat May. 30, 2006
6807687 Toilet seat and cover system Oct. 26, 2004
6615412 Flip your lid and toilet seat opener Sep. 9, 2003
6588027 Toilet seat lifting mechanism Jul. 8, 2003
6219854 Toilet seat lifting apparatus Apr. 24, 2001
6161229 Powered lift toilet seat with armrests Dec. 19, 2000
6112335 Foot actuated, anti-slamming, toilet seat raising and lowering device Sep. 5, 2000
5978974 Apparatus for raising and automatically lowering a toilet seat Nov. 9, 1999
5875498 Toilet seat lifting device Mar. 2, 1999
5309583 Powered lift toilet seat May. 10, 1994
5103506 Toilet seat lifter Apr. 14, 1992
5056165 Commode flush and seat lift apparatus Oct. 15, 1991
4807307 Device for opening and closing the seating plate of the lavatory unit of the seat type Feb. 28, 1989
4803741 Toilet seat lifter Feb. 14, 1989
4736470 Lifting assembly for lid and seat structures of a toilet Apr. 12, 1988
D287616 Toilet seat lifter, or the like Jan. 6, 1987
4592097 Seat lifter Jun. 3, 1986
4534073 Toilet seat lifter Aug. 13, 1985











 
 
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