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. 07, 2003
Filed:
Feb. 08, 2002
Peter Schlüter, Kammerforst, DE;
Lucas Industries plc, , GB;
Abstract
A pneumatic brake booster ( ) has a booster housing ( ), the interior of which is subdivided by at least one movable wall ( ) into a vacuum chamber ( ) and a working chamber ( ). Along an axis (A) a control valve ( ) for controlling a pneumatic pressure difference acting upon the movable wall ( ) projects into the booster housing ( ). The movable wall ( ) is workingly connected to the outside of a substantially cylindrical control valve housing ( ), in that a collar ( ) of a plate ( ) associated with the movable wall ( ) is deformed along its periphery at least in sections radially into the control valve housing ( ). In order to simplify manufacture of the brake booster ( ), in the portion ( ) of the control valve housing ( ) overlapped by the collar ( ) of the plate ( ) a plurality of recesses ( ) are provided, which are spaced apart from one another in peripheral direction and into which the collar ( ) of the plate ( ) is radially deformed. The recesses ( ) are accessible from the end of the control valve housing ( ) disposed in the booster housing ( ).