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:
Jul. 19, 2005
Filed:
Sep. 26, 2003
Jean-charles Maligne, Aubervilliers, FR;
Michael Hellebrandt, Le Chesnay, FR;
Ulysse Verbo, Aulnay sous Bois, FR;
Philippe Richard, Chelles, FR;
Silverio Batista, Noisy le Sec, FR;
Jean-Charles Maligne, Aubervilliers, FR;
Michael Hellebrandt, Le Chesnay, FR;
Ulysse Verbo, Aulnay sous Bois, FR;
Philippe Richard, Chelles, FR;
Silverio Batista, Noisy le Sec, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A brake booster comprising an envelope () having a longitudinal axis (X) formed of a first () and of a second () shell to define an interior volume divided by moving a skirt into a low-pressure first chamber and a variable-pressure second chamber. A three-way valve () actuated by a control rod places the front chamber and the rear chamber in communication at rest and during a braking phase interrupts the communication between the front chamber and the rear chamber and thereafter allows communication of pneumatic fluid at high pressure to the rear chamber. The booster is attached to the master cylinder by a clip-fastening arrangement wherein tabs () that radially extend from a sleeve tube () are plastically deformable in the radial direction on enter into a passage () in a flange () of the master cylinder and returning to the initial position when the attachment operation is complete.