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:
Jun. 12, 1990
Filed:
Dec. 23, 1985
Applicant:
Inventor:
Harrison R Epperly, Indianapolis, IN (US);
Assignee:
Echlin Inc., Branford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
188330 ;
Abstract
A roller body for providing a brake shoe actuator, in a heavy-duty air brake assembly in which the braking effect is achieved by the movement of a cam which pushes on a brake shoe by rolling forcefully against the roller body which is revolvably carried by the brake shoe; and the roller body has a generally cylindrical surface which is provided with knurling grooves all running generally parallel to the axis of the body member, providing high torque and self-cleaning effect which gives smooth braking and extra gripping power by assuring smooth actuation of the brake shoe in response to the braking force applied to the cam shaft of the braking system.