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:
Aug. 23, 1977
Filed:
Mar. 29, 1976
Applicant:
Inventor:
Thomas W Weisgerber, Saginaw, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
60404 ; 180133 ;
Abstract
Power steering gear for vehicles having primary and secondary modes of power operation. In the event of loss of primary system operating pressure, pressure from an accumulator is directed by a closed center valve device within the gear to provide for the powered steering of the vehicle. When the accumulator is exhausted the steering gear enters a manual mode of operation for continued vehicle dirigibility.