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. 19, 2000
Filed:
Nov. 30, 1998
Applicant:
Inventor:
Steven R Baldwin, Troy, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
188 7951 ; 188325 ;
Abstract
A drum brake assembly as provided with a rack and pinion actuator. The rack and pinion actuator includes a pinion gear driving a pair of racks, with the racks driving the brake shoes into engagement with the brake drum. The pinion gear is provided with an adjustment thread which transmits rotation to an adjustment member. The adjustment member monitors the amount of rotation of the pinion gear during actuation, and a mechanism drives the adjustment member and the pinion gear back to its non-actuated position after completion of the braking cycle. The mechanism limits the amount of return movement of the pinion gear as necessary to provide adjustment of the brake stroke.