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.

Date of Patent:
Nov. 29, 2022

Filed:

Aug. 29, 2019
Applicant:

Ckd Corporation, Komaki, JP;

Inventor:

Shinji Itoh, Komaki, JP;

Assignee:

CKD CORPORATION, Komaki, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); H01F 7/08 (2006.01); H01F 7/06 (2006.01);
U.S. Cl.
CPC ...
F16K 31/0679 (2013.01); H01F 7/081 (2013.01); F16K 31/0651 (2013.01); F16K 31/0655 (2013.01); H01F 7/06 (2013.01);
Abstract

An electromagnetic valve has a solenoid, which includes a coil, a plunger, a fixed core, and a plunger spring. The fixed core is E-shaped and has a base, a first outer leg, a second outer leg, and a central leg. The first outer leg, the second outer leg, and the central leg extend from the base. The first outer leg has a first outer attraction surface configured to attract the plunger. The second outer leg has a second outer attraction surface configured to attract the plunger. The central leg has a central attraction surface configured to attract the plunger. The central attraction surface is larger in area than each of the first and second outer attraction surfaces.


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