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:
Oct. 14, 2008

Filed:

Sep. 17, 2003
Applicants:

Georg Halasy-wimmer, Markgröningen, DE;

Lothar Schiel, Hofheim, DE;

Rolf Weiler, Eppstein, DE;

Jürgen Balz, Hünstetten-Oberlibbach, DE;

Peter Schack, Seligenstadt, DE;

Thomas Bauer, Frankfurt/Main, DE;

Stefan A. Drumm, Saulheim, DE;

Andreas Heise, Möfelden, DE;

Joachim Scholer, Frankfurt/Main, DE;

Stefan Johannes Schmitt, Eltville, DE;

Andreas Pohlmann, Eschborn, DE;

Thomas Winkler, Mainz, DE;

Volker Knop, Ulmen, DE;

Jörn Schriefer, Bickenbach, DE;

Ralf Hartmann, Kriftel, DE;

Karsten Schille, Hannover, DE;

Johannes Görlach, Langgöns, DE;

Peter Volz, Darmstadt, DE;

Inventors:

Georg Halasy-Wimmer, Markgröningen, DE;

Lothar Schiel, Hofheim, DE;

Rolf Weiler, Eppstein, DE;

Jürgen Balz, Hünstetten-Oberlibbach, DE;

Peter Schack, Seligenstadt, DE;

Thomas Bauer, Frankfurt/Main, DE;

Stefan A. Drumm, Saulheim, DE;

Andreas Heise, Möfelden, DE;

Joachim Scholer, Frankfurt/Main, DE;

Stefan Johannes Schmitt, Eltville, DE;

Andreas Pohlmann, Eschborn, DE;

Thomas Winkler, Mainz, DE;

Volker Knop, Ulmen, DE;

Jörn Schriefer, Bickenbach, DE;

Ralf Hartmann, Kriftel, DE;

Karsten Schille, Hannover, DE;

Johannes Görlach, Langgöns, DE;

Peter Volz, Darmstadt, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A hydraulic vehicle brake equipped with a parking brake device, in particular for motor vehicles, including a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein the parking brake device acts on the brake piston and, in the applied condition, can be locked by a locking device, and an energy accumulator cooperating with the brake piston is equipped with at least one integrated spring element. In order to realize a simple and low-cost parking brake function that complies with legal requirements, according to the invention, the parking brake device is operable by a pressure that is introduced into the service pressure chamber and enables charging the energy accumulator.


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