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:
May. 07, 1991
Filed:
Oct. 13, 1989
Applicant:
Inventor:
Erich Reinecke, Burgdorf, DE;
Assignee:
Wabco Westinghouse Fahrzeugbremsen GmbH, Hanover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303113 ; 303119 ;
Abstract
The present invention provides a dual-circuit hydraulic brake system, which has a hydrostatic circuit and a servo circuit. The brake system also has an electronic anti-locking system, which is fed by the servo circuit. To cut off the master cylinder in case of a controlled braking and thereby to guarantee a closed circuit, an annular receptacle in the servo cylinders used for circuit separation is connected to a volume receptacle in case of a braking controlled by the anti-lock system. At the sametime, the master cylinder is cut off by means of a central valve.