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:
Jan. 30, 2001
Filed:
Oct. 22, 1999
Madoka Inami, Kariya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A spool valve type electromagnetic valve constructed to facilitate production at reduced cost includes a linear solenoid having a spool and a plunger that are coaxially aligned. The linear solenoid also has a rear yoke which is configured by a resin-made bobbin around which a coil is wound and a plunger movably fitted in the resin made bobbin. The linear solenoid also includes a front yoke positioned in the bobbin in coaxial alignment with both the rear yoke and a connecting end of a valve body of the valve. The front yoke, the rear yoke and the resin-made bobbin form an integrated structure produced through insert molding. An alignment facilitating portion is provided between the front yoke and the valve body.