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:
Sep. 08, 1992
Filed:
Nov. 14, 1990
Applicant:
Inventors:
Mark J Quintile, Brunswick, OH (US);
Neal J Curran, Lakewood, OH (US);
Assignee:
Invacare Corporation, Elyria, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; B60N / ;
U.S. Cl.
CPC ...
180 651 ; 180907 ; 248584 ; 267221 ; 2803041 ; 297D / ;
Abstract
A suspension system for a wheelchair comprises a frame, a pivot bar mounted to the frame through a hinge point, and a seat mounted on the pivot bar. The pivot bar is supported from the frame by a shock absorber and a helical spring so that impacts transferred to the frame through the wheelchair wheels are partially decoupled from the movement of the seat. The movement of the seat is constrained in a single plane along the longitudinal axis of the wheelchair.