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:
Jul. 03, 1990
Filed:
Jan. 10, 1989
Applicant:
Inventors:
Robert W Hyde, Dayton, OH (US);
Frank W Brooks, Sr, Dayton, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
188 7952 ; 1921 / ;
Abstract
A thermal compensating self-adjusting vehicle wheel drum brake apparatus and method is provided including a wheel cylinder, a plate for mounting the wheel cylinder, an adjuster strut with a star wheel for adjustably extending a pair of brake shoes. An adjuster pawl is provided for turning the adjuster star wheel. The adjuster pawl is inserted within an aperture of one of the shoes. A thermal elongating stop extendible at a predetermined temperature contacts and wedges the adjuster pawl to prevent pivotal motion thereof whenever the temperature of the brake is above a predetermined value.