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:
Nov. 18, 2008
Filed:
Jul. 18, 2006
Frank Schrader, Burgwedel, DE;
Oliver Brandt, Braunschweig, DE;
Jürgen Ewald, Laatzen, DE;
Wilfried Matthias, Bad Nenndorf, DE;
Andreas Richter, Wedemark, DE;
Frank Schrader, Burgwedel, DE;
Oliver Brandt, Braunschweig, DE;
Jürgen Ewald, Laatzen, DE;
Wilfried Matthias, Bad Nenndorf, DE;
Andreas Richter, Wedemark, DE;
WABCO GmbH, Hannover, DE;
Abstract
A spring-actuated air-brake cylinder as the diaphragm cylinder for vehicle brake systems includes a diaphragm, an actuator-spring chamber in which there is received a spring-actuated piston, which is acted on by a compression spring as the actuator spring and is actively connected to the diaphragm, which is disposed between the actuator-spring chamber and a pressure chamber, in which there is guided moveably a sealed push rod, which can include a pressure member on its diaphragm side. The spring-actuated diaphragm is connected to the push rod or to the pressure member or to the spring-actuated piston by means of vulcanization.