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. 04, 1990
Filed:
Mar. 01, 1989
Applicant:
Inventor:
Franz Bender, Wendlingen, DE;
Assignee:
Daimler-Benz AG, Stuttgart, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
91514 ; 137510 ; 137907 ; 303 12 ; 91516 ; 91532 ; 91443 ; 60397 ; 60412 ;
Abstract
A vacuum supply system for a brake power assist unit of a motor vehicle and at least one additional vacuum consuming device, is achieved by a parallel arrangement of two pipes leading from a vacuum generating device one to the brake power assist unit and one to the additional consuming device. Both pipes are equipped with flow control devices one of which is blockable by means of a check valve with an increased restoring or closing force for securing a vacuum supply priority for the brake power assist unit.