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:
Mar. 06, 1990
Filed:
Mar. 30, 1989
Applicant:
Inventor:
Yasushi Miura, Nagoya, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
310 29 ; 25112915 ; 251 65 ; 335258 ;
Abstract
In an electromagnetic valve, the fixed core of a solenoid has an axially extending annular wall at one end. The movable core of the solenoid is connected to a poppet for closing a fluid passage of a valve seat member and is fittable in the recess defined by the annular wall. The magnetic flux flow path including the annular wall provides reduced hysteresis for the initial part of the stroke of the poppet upon energization of the solenoid.