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:
Dec. 25, 1979
Filed:
Jul. 19, 1978
Donald D Johannesen, South Bend, IN (US);
Orla L Holcomb, Jr, South Bend, IN (US);
The Bendix Corporation, Southfield, MI (US);
Abstract
A drum brake is provided with a pair of brake shoes having axially inner and outer webs for supporting friction linings. A backing plate mounts the pair of brake shoes by providing radially outwardly extending lugs which are disposed between the inner and outer webs to prevent axial movement of the pair of brake shoes. Moreover, springs are disposed between respective lugs and portions extending between the webs to bias the portions into engagement with recesses on the backing plate. A double hydraulic actuator is positioned between the pair of braking shoes with one actuator cooperating with the inner webs and the other actuator cooperating with the outer webs during a braking application to urge the friction linings into engagement with a drum. The inner and outer webs also include slots substantially opposite the double hydraulic actuator for receiving plates which mount an adjustment mechanism between the pair of brake shoes.