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:
Apr. 30, 1985
Filed:
Feb. 08, 1984
Applicant:
Inventor:
David G Evans, Rochester, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
13762565 ; 137270 ; 13762564 ; 13762568 ; 251139 ;
Abstract
A solenoid valve has a housing in which is disposed a coil, a sleeve valve and a plurality of hydraulic fluid passages. The passages are formed in a cylindrical core which is integral with and extends axially from an end wall of the housing. The sleeve valve is slidably mounted on the core and has a pair of annular recesses which are selectively positionable by valve movement to interconnect various combinations of passages for controlling hydraulic fluid flow. The sleeve valve has a metal ring secured thereto so that the sleeve valve will be moved in response to electric current flowing in the coil which surrounds a portion of the sleeve valve.