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. 09, 1993
Filed:
Oct. 02, 1991
Emilio Ambasz, New York, NY (US);
Other;
Abstract
A chair seat mounting mechanism includes a stationary base member adapted to be mounted on a chair base, a seat-mounting member that is adapted to be attached to a chair seat and is rotatably attached to the base member by a pivot shaft and springs acting between the base member and the seat-mounting member and biasing the seat to a neutral position intermediate of a forward tilted position and a rearward tilted position. An intermediate member is pivotally attached to the pivot shaft, and at least one first spring is engaged between the intermediate member and the seat-mounting member such as to bias the seat-mounting member relative to the intermediate member toward the neutral position and to permit the seat to tilt forward against the bias. At least one second spring is engaged between the base member and the intermediate member such as to bias the intermediate member relative to the base member toward the neutral position and to permit the seat to tilt rearward against the bias. The pivot shaft is spaced apart a substantial distance from the center of the chair seat in the direction of the front edge of the seat bottom so as to limit the amount of vertical motion of the front edge when the seat tilts forward and backward from the neutral position.