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:
Feb. 14, 1995
Filed:
Sep. 23, 1993
Arkady Golynsky, Allentown, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
Disclosed is a knee tilt control mechanism for a pedestal type of chair. The control mechanism has a main torsion spring member secured to the control housing designed to resist pivotal movement of the chair seat about a pivot point on the housing. The chair control mechanism includes one or more lever arms attached at one end to the pivot point pins and attached at the other end to a link member. The link member has a pin adapted to slide within a retaining groove or slot in the chair control housing and is connected to the chair pivot point with a tension spring. The lever arm, link and tension spring supply a restoring force which when coupled to the torque force produced by the main spring, results in a restoring force that is nonlinear and is comfortable to the user for all positions of the chair.