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:
May. 05, 1998
Filed:
Sep. 28, 1995
Shigeki Niimi, Kariya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
An electromagnetic valve device capable of reducing the number of assembled parts and manufacturing cost thereof includes a stable core arranged in a solenoid, a movable core slidable in the solenoid to form a magnetic gap with the stable core, a casing made of magnetic material and provided with a holder portion extending along the outer periphery of the solenoid and a yoke portion extending inside of the solenoid in sliding contact with the movable core, and a base made of synthetic resin unitedly molded with the casing and opposed to the movable core so as to form a valve member with the movable core. The yoke portion of the casing can sufficiently contact the movable core so as to allow the movable core to act as a valve with the base in association with a return spring for normally biasing the movable core toward the base. The casing and the base are unitedly molded to prevent positional deviations of the axial centers therebetween so that the base and the movable core can properly serve as a valve to open and close a fluid passage with less leakage therefrom.