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:
Oct. 27, 1998
Filed:
Aug. 31, 1992
Applicant:
Inventor:
Eldon Lamar Goates, Westland, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137110 ; 137493 ; 13751625 ; 137568 ;
Abstract
A check valve for use in an hydraulic control circuit includes separator plates each having an orifice of predetermined size and a ball retained between the separator plates, adapted to close one of the orifices and to open a port and parallel passages communicating with a chamber in which a ball is retained. The ball chamber is in continual communication with the orifice that is not closed by the ball.