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. 05, 2018
Filed:
Apr. 23, 2015
Bendix Spicer Foundation Brake Llc, Elyria, OH (US);
Timothy T. Spath, Lakewood, OH (US);
Bendix Spicer Foundation Brake LLC, Elyria, OH (US);
Abstract
Various examples of brake actuators are provided. In one example, a brake actuator includes a parking brake chamber defined by a spring housing and an adapter base. The parking brake chamber includes a parking diaphragm that has an opening and the parking diaphragm is disposed between the spring housing and the adapter base which divides the brake spring chamber into a spring volume and a release volume, with the spring volume of the brake spring chamber being sealed from atmosphere. The parking brake chamber also includes a piston that is disposed in the spring volume and is in contact with the parking diaphragm, and the piston includes a piston passageway through the piston to allow air flow between the release volume and the spring volume.