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.

Date of Patent:
Feb. 24, 2009

Filed:

Dec. 16, 2004
Applicants:

Ronald S. Plantan, Westlake, OH (US);

Ken E. Scheckelhoff, Elyria, OH (US);

Inventors:

Ronald S. Plantan, Westlake, OH (US);

Ken E. Scheckelhoff, Elyria, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A spring-type brake actuator for a pneumatically-operated vehicle brake is provided, with a brake actuator spring located on a front side of the actuator's intermediate flange, between a service brake actuator and a parking brake release actuator. The spring is captured between the intermediate flange and a retaining plate which is connected to the parking brake release actuator via a shaft through the intermediate flange. Because the retaining plate and parking brake release actuator are connected to one another on opposite sides of the intermediate flange, spring expansion is checked, thereby increasing safety during actuator production and servicing by virtually eliminating the potential for uncontrolled spring energy release. The actuator configuration also reduces structural loads on the rear portion of the housing and shifts spring and housing weight closer to the vehicle brake, permitting simpler designs and use of alternative materials, such as plastic or aluminum to lower costs.


Find Patent Forward Citations

Plantan, Ronald. (2009). Spring brake actuator with mid-located spring (U.S. Patent No. 7493994). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7493994

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

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