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:
Jun. 12, 1990
Filed:
May. 10, 1989
Donald E Schenk, Vandalia, OH (US);
Schuyler S Shaw, Dayton, OH (US);
Edward J DeHoff, Huber Heights, OH (US);
Scott A Baughman, Springboro, OH (US);
Donald M Flory, Arcanum, OH (US);
Timothy A Haerr, Enon, OH (US);
Donald L Parker, Middletown, OH (US);
Thomas B Taylor, Clarkston, MI (US);
George N Villec, Ann Arbor, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A vehicle braking system having a wheel lock control arrangement with isolation valves, solenoid, and brake control valves for the system. In one arrangement, each wheel brake and isolation valve has its own solenoid and control valve. Additionally, the isolation valve is configured in a manner to prevent premature drop out from isolation and to prevent any flow from a master cylinder brake apply pressure circuit to a pump pressure circuit.