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 7779972 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 24, 2010

Filed:

Mar. 30, 2005
Applicants:

Hiromi Inagaki, Saitama, JP;

Akira Hiratsuka, Nagano, JP;

Inventors:

Hiromi Inagaki, Saitama, JP;

Akira Hiratsuka, Nagano, JP;

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D 65/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A parking brake system is provided in which a parking brake state is obtained by forward movement of a parking piston in response to the action of a parking control fluid pressure, and a forward operating state of the parking piston is mechanically locked by a lock mechanism. Moreover, an input member of a brake mechanism and the parking piston are connected by a coupling linkage. A lock piston of the lock mechanism moves toward one side in the axial direction when the parking piston moves forward, and a locking part provided at one end of the lock piston engages from the rear with a retaining part provided on a middle section of the coupling linkage while straddling the middle section of the coupling. This enables an automatic parking brake state to be obtained by a simple structure without consuming power.


Find Patent Forward Citations

Inagaki, Hiromi. (2010). Parking brake system (U.S. Patent No. 7779972). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7779972

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

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