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. 22, 1984
Filed:
May. 26, 1981
Applicant:
Inventors:
Randall T Murphy, Farmington Hills, MI (US);
Dennis H Heling, Canton, MI (US);
Assignee:
Lear Siegler, Inc., Livonia, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
A47C / ; A47C / ;
U.S. Cl.
CPC ...
297284 ;
Abstract
A seat backrest having an adjustable lumbar support is provided wherein the cam surface of a rotatable cam of a regulating mechanism, which adjusts the lumbar support, is effectively utilized to facilitate manual adjustment of the lumbar support. Rotation of the cam in a first direction cams a follower away from the axis of rotation of the cam. The follower causes an attached bar to rotate therewith. A lumbar support plate is supported by a cantilevered resilient or rigid element in the form of a leaf spring which is supported by the bar.