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:
Dec. 07, 2004
Filed:
Jun. 04, 2003
Ulysse Verbo, Sant Cugat, ES;
Philippe Richard, Chelles, FR;
Jean-Charles Maligne, Aubervilliers, FR;
Stephane Lacroix, Tournan en Brie, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A pneumatic brake booster for a motor vehicle wherein movements of a control rod ( ) determine the openings and closings of at least one axial intake valve ( ) and at least one equalizing valve ( ). The intake valve ( ) being inserted between a pressure source subjected to the pressure (P ) higher than the first pressure (P ) and a rear chamber ( ) of the booster, and the equalizing valve ( ) being inserted between a front chamber ( ) and the rear chamber ( ) to actuate a moving partition ( ) located between the front chamber ( ) and the rear chamber ( ). A tubular element ( ) of that is axially offset transverse faces ( ) comprised of first elements ( ) for sealing the axial intake and equalizing valves ( ).