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:
Feb. 10, 1976
Filed:
Sep. 25, 1974
Ronald L Harkrader, Saginaw, MI (US);
Dan R Kimberlin, Frankenmuth, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A valve for controlling the outlet pressure of a pump which supplies two systems. The valve permits flow through a first regulating portion to the primary system at a pressure equal to the secondary system pressure requirement. The secondary system preferably includes an accumulator and has an upper pressure requirement which is attained when the accumulator is filled. A second regulating portion of the control valve responds to secondary system pressure to permit bypassing of the first regulating portion when the secondary systems upper pressure requirement is satisfied. The second regulating portion closes when the lower limit is reached to permit refilling of the accumulator.