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:
Oct. 04, 2011
Filed:
Nov. 06, 2008
Applicant:
Jean-marc Attard, Villers Sous St Leu, FR;
Inventor:
Jean-Marc Attard, Villers Sous St Leu, FR;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a brake booster with a short operating travel, in which the three-way valve comprises a mobile valve seat borne by a sleeve (). The movement of this sleeve is controlled by the piston. According to the invention, there is an elastic device () applying force to the sleeve () in the direction of the front of the booster, and tending to move this sleeve forward with respect to the pneumatic piston (). In addition, there is a device for transmitting the pressure of the master cylinder () to the sleeve () and that tends to apply a rearward force to the sleeve ().