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:
Apr. 20, 2010
Filed:
Sep. 28, 2007
Bruno Beylerian, Louvres, FR;
Aleksander Hurwic, Paris, FR;
Bruno Beylerian, Louvres, FR;
Aleksander Hurwic, Paris, FR;
Robert Bosch GmbH, , DE;
Abstract
The invention relates to a brake booster intended to transmit handbrake commands. This booster essentially comprises a plunger () able to move axially under the command of the control rod (). An enclosure () contains a working chamber () and a vacuum chamber () which are separated by a wall () able to move axially under the effect of the plunger () and/or of a difference in pressure between the vacuum chamber and the working chamber. A three-way valve () controlled by the plunger () allows the working chamber () to be connected either to the vacuum chamber or to atmospheric air. Finally, a bearing piece () controlled by the moving wall () allows the control rod () to be driven along.