Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Resiliently biased hinge
Patent
1988-07-18
1989-04-04
Silverberg, Fred A.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Resiliently biased hinge
4236, 4240, 16301, E05F 108
Patent
active
048172421
ABSTRACT:
A spring hinge for raising a toilet seat and having an adjustable spring force. First and second hinge members with hinge knuckles that interfit closely end-to-end are attachable respectively to the toilet bowl and the seat. A rod extends through the knuckles and is slidably received in end caps on the hinge members at opposite ends. A first coupling member on the rod presents a series of teeth extending circumferentially around the rod and facing toward the end cap on the second hinge member. A second coupling member on the inside of the second hinge member's end cap has similar teeth which engage the teeth of the first coupling member. A coil spring encircles the rod inside the hinge knuckles and is fastened at one end to the end cap of the first hinge member and at the opposite end to the first coupling member to normally hold the first coupling member in toothed engagement with the second coupling member. The rod may be pushed to disengage the coupling members, after which the rod may be turned to adjust the force of the spring.
REFERENCES:
patent: 381100 (1888-04-01), Beath
patent: 975812 (1910-11-01), Watrous
patent: 1529656 (1965-03-01), Kornhauser
patent: 4428083 (1984-01-01), Chuang
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