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. 23, 1987
Filed:
Apr. 25, 1986
Frank G Warrick, Horton, MI (US);
Sealed Power Corporation, Muskegon, MI (US);
Abstract
Electrohydraulic valves for use in high fluid pressure systems such as automotive anti-skid brake systems, power steering systems and machine tool systems comprising a valve body of magnetic material, a valve seat member of magnetic material having a non-magnetic insert defining the seat and a coil surrounding a portion of the valve body and the valve seat adapted to be controlled by a microcomputer to provide pulses to a ball positioned between the valve seats and thereby control the flow through the valve. In one form the valve includes a second set of opposed valve seats, a second ball, and a second coil. In each form, a sleeve surrounds the valve seats and the balls and hydraulically isolates them from the coil associated therewith.