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.:

US 9856992 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 02, 2018

Filed:

Jun. 23, 2015
Applicant:

Kyb Corporation, Tokyo, JP;

Inventor:

Tsuyoshi Hironaka, Tokyo, JP;

Assignee:

KYB Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); H01F 7/16 (2006.01);
U.S. Cl.
CPC ...
F16K 31/06 (2013.01); H01F 7/16 (2013.01);
Abstract

A solenoid valve includes a housing having a cylindrical shape and having a valve path, a spool adjusting an opening degree of the valve path, a coil producing a magnetic force when a current passes therethrough, a first and a second stator core excited by the magnetic force of the coil, a shaft configured to be movable along axial direction together with the spool, a plunger fixed to the shaft and moving in the axial direction by adsorption force acting between itself and the first stator core by the magnetic force of the coil, and a coil spring biasing the spool against the adsorption force acting on the plunger. A spring constant of the coil spring increases as the adsorption force increases by the movement of the plunger.


Find Patent Forward Citations

Hironaka, Tsuyoshi. (2018). Solenoid valve (U.S. Patent No. 9856992). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9856992

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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