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. 17, 1981
Filed:
Sep. 27, 1979
Gary R Minnis, Saginaw, MI (US);
John L Stiles, St. Albans, GB;
General Motors Corporation, Detroit, MI (US);
Abstract
A flow control valve has a slidable valve member and a variable orifice structure. The valve member slides in response to a pressure differential, created by fluid flow through the variable orifice, to bypass fluid in a positive displacement pump. The variable orifice is a self-contained unit including a longitudinally movable pin having a variable cross section disposed in an aperture. The pin position in the aperture controls the size of the orifice and thereore imposes a flow restriction which creates the pressure differential. The flow control valve is useful with power steering hydraulic pumps and systems where it is desirable to reduce the amount of hydraulic fluid which is delivered to the steering mechanism when the pump input speed exceeds a predetermined value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile