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. 19, 1995
Filed:
Sep. 30, 1993
Jean Pierre Gautier, Aulnay-Sous-Bois, FR;
Ulysse Verbo, Aulnay-Sous-Bois, FR;
Miguel Perez Revilla, Argenteuil, FR;
Roland Levrai, Stains, FR;
AlliedSignal Europe Services Techniques, Drancy, FR;
Abstract
This boosted brake device comprises a pneumatic brake booster (1) associated with a master cylinder (2), the booster operating according to a hydraulic reaction principle and comprising a movable pneumatic piston (5) carrying a control valve (7) actuated by a rod (8), as well as a partition (4) which can move under the effect of a pressure difference and which develops a boost force. The movable wall (4) is mounted slidingly with respect to the pneumatic piston (5) in order to act early on the master cylinder. The device of the invention allows greater braking for small values of the travel of the control rod.