The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1999
Filed:
Mar. 11, 1998
Naokazu Suzuki, Kanagawa, JP;
Katoh Electrical Machinery Co., Ltd., Kanagawa, JP;
Abstract
An operating hinge for a seat and seat lid of a toilet bowl, simply constructed and capable of controlling the angular moment of the seat and lid to softly stop them in place at their respective predetermined ends of pivoting stroke, provided. The operating hinge comprises a hinge case to be installed to a body of a toilet bowl, a shaft provided rotatably inside the hinge case to support the seat and seat lid, a stationary cam secured inside the hinge case and having formed therein a central hole through which the rotating shaft is axially penetrated, a cam provided inside the hinge case in a vis-vis relationship with the stationary cam and having formed therein a central hole through which the rotating shaft is axially penetrated, to be slidable on, and rotatable with, the rotating shaft, and a resilient member for urging the rotatable sliding cam toward the stationary cam, further comprising, to more positively control the rotation of the rotating shaft, a rubber ring fitted on the rotating shaft to abut the inner wall of the hinge case, a viscous oil applied between the periphery of the rubber ring and the hinge case inner wall the rubber ring abuts, and a screw for adjusting a pressure the rubber ring applies to the inner wall of the hinge case.