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:
May. 05, 2009
Filed:
Oct. 31, 2003
Jürgen Huber, München, DE;
Thomas Rasel, München, DE;
Rainer Knoss, München, DE;
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH, Munich, DE;
Abstract
A brake device is provided with an actuator which is operated by a pressure medium, used to apply and release a vehicle brake, especially a brake of a rail vehicle, includes an actuating piston which defines two pressure chambers. One pressure chamber impinges upon the vehicle brake in an applied position and the other pressure chamber impinges upon the vehicle brake in a release position. The two pressure chambers are connected to each other by a line with an overflow valve which opens at least during part of the transition phases—between the release position and open position—and which is otherwise closed.