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:
Nov. 18, 2025
Filed:
Dec. 08, 2021
Humanscale Corporation, New York, NY (US);
Greg Allison, Allentown, PA (US);
Humanscale Corporation, New York, NY (US);
Abstract
A weight-sensitive, reclinable seating apparatus that features a backrest pivot mechanism positioned entirely within the seat assembly () of the seating apparatus. The backrest pivot mechanism comprises a plurality of ramp assemblages positioned within the seat assembly (), with the ramp assemblages each comprising one or more motion-facilitating components () that engage one or more ramps (). The motion-facilitating components () cooperate with the ramps () to provide a virtual pivot () for the backrest () that is projected above the seat surface. The backrest pivot mechanism minimizes the vertical drop of the backrest during the recline motion, which in turn minimizes the seat lift during the recline motion. By minimizing the magnitude of the backrest drop and the seat lift during a recline operation, the seating apparatus reduces the displacement of the functional pivot from the ideal pivot point as the chair reclines.