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:
Sep. 27, 2005
Filed:
Nov. 26, 2001
Jean-pierre Michon, Saint Pathus, FR;
Stéphane Lacroix, Tournan en Brie, FR;
Jean-Pierre Michon, Saint Pathus, FR;
Stéphane Lacroix, Tournan en Brie, FR;
Robert Bosch GmbH, Stottgart, DE;
Abstract
Braking device including a master cylinder (), a primary piston (), a control member (), a booster () coupled to the control member (), and an assist valve (VA) defined by a reaction piston () with a bore () therein for receiving a ratio control member (). The control member () has a piston () with a head () located in a chamber () between the reaction piston () and a bushing () retained in the bore (). The bushing () has an axial passage () that receives a head () of piston () to form a valve () for closing an inlet to a passage () in the piston (). The bushing () slides within bore () to limit a pressure difference between the chamber () and a front part () of the bore () to a value below a pressure difference that causes the valve () to open.