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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.:

US 10428883 B1

PDFFull Text
Date of Patent:
Oct. 01, 2019

Filed:

Jul. 17, 2015

Drum brake assembly configured to reduce audible noise during braking

Applicant:

Bendix Spicer Foundation Brake Llc, Elyria, OH (US);

Inventors:

David R. Church, Richland, MI (US);

Bret Allen Engels, West Bloomfield, MI (US);

Edward Ray Green, Livonia, MI (US);

Assignee:

Bendix Spicer Foundation Brake LLC, Elyria, OH (US);

Attorney:

Reising Ethington P.C.

Primary Examiner:

Bradley T King

Assistant Examiner:

Stephen M Bowes

Int. Cl.
CPC ...
F16D 65/08 (2006.01); F16D 65/00 (2006.01); F16D 51/22 (2006.01); F16D 65/22 (2006.01); G06F 17/50 (2006.01); F16D 125/30 (2012.01);
U.S. Cl.
CPC ...
F16D 65/0006 (2013.01); F16D 51/22 (2013.01); F16D 65/0018 (2013.01); F16D 65/22 (2013.01); G06F 17/5095 (2013.01); F16D 2125/30 (2013.01);
Abstract

A drum brake assembly and method for designing the assembly are provided. The assembly includes a brake spider, a pair of brake shoes pivotally coupled to the brake spider at one end, and a pair of cam followers disposed at opposite ends of the brake shoes. The assembly further includes a camshaft having a shaft disposed along a rotational axis and a cam disposed at one end of the shaft. The cam has an inboard side proximate the shaft, an outboard side distant from the shaft and a cam surface extending between the inboard and outboard sides in engagement with the cam followers. The camshaft further includes a noise reducing mass disposed on the outboard side of the cam. The mass is configured to establish a natural frequency in the cam that differs from a natural frequency of the first and second brake shoes to reduce audible noise.

Find Patent Forward Citations

Church, David. (2019). Drum brake assembly configured to reduce audible noise during braking (U.S. Patent No. 10428883). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10428883

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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