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:
Dec. 22, 1987
Filed:
Aug. 28, 1986
Applicant:
Inventors:
Kazuhiro Ueda, Wakayama, JP;
Toshiaki Yamaguchi, Wakayama, JP;
Kouji Kajiyama, Wakayama, JP;
Osamu Matsumoto, Himeji, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
13761418 ; 25112908 ; 25112914 ; 251121 ;
Abstract
An electromagnetic proportional control valve of a construction having a sleeve; a spool slidably held within the sleeve; a spring holder to move with the spool; a ball mounted in the spring holder and lifted up thereby; and a valve seat inserted under pressure into the sleeve, the ball being brought into tight contact with the valve seat by the energizing force of the spring.