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. 15, 1985
Filed:
Oct. 19, 1984
Applicant:
Inventors:
Yoshio Okamoto, Ibaraki, JP;
Kazumi Iwai, Mito, JP;
Hiroshi Inoue, Ibaraki, JP;
Yoshifumi Kunugi, Ibaraki, JP;
Tadashi Shinozaki, Tsuchiura, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13762415 ; 25112905 ;
Abstract
A solenoid valve in which a pulse signal is applied to an electromagnet thereof to eliminate an electric hysteresis. The solenoid valve includes a piston-like valve slidably supported in a cylinder, and at least one aperture, for communicating with a fluid inlet and a fluid outlet, provided in at least one of the valve and cylinder, whereby the flow rate of a fluid may be continuously controlled and the collision between the valve and a valve seat may be avoided.