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 6578817 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 17, 2003

Filed:

Jun. 06, 2001
Applicant:
Inventors:

Yukinori Otsuka, Kanagawa, JP;

Masahiko Hara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 3/102 ;
U.S. Cl.
CPC ...
F16K 3/102 ;
Abstract

A solenoid valve includes a moving part, a plunger of magnetic material having one end facing an end face of the moving part, and a protrusion formed at the one end of the plunger and abutting on the end face of the moving part. During energization, a magnetic path is formed from a valve body to the moving part to produce an attraction force between the valve body and the moving part across a clearance. Magnetic flux running along the magnetic path becomes saturated at the protrusion.


Find Patent Forward Citations

Otsuka, Yukinori. (2003). Solenoid valve (U.S. Patent No. 6578817). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6578817

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

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