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:
Oct. 20, 1987
Filed:
May. 13, 1986
Applicant:
Inventor:
Heinrich-Bernhard Rath, Vallendar, DE;
Assignee:
Lucas Industries public limited company, Birmingham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
188323 ; 1881 / ;
Abstract
In a drum brake including three brake shoes (4,22,23) adapted to be pressurized hydraulically and/or mechanically first and second hydraulically operable brake shoes (4,22) are supported trailingly in forward travelling direction (21), while the third brake shoe (23), together with at least one of the other brake shoes (4,22) is pressurized upon mechanical braking such that one each of the brake shoes (23 and 4 or 22) is supported trailingly and one is supported leadingly, both in forward and backward travelling directions.