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:
Aug. 15, 2006
Filed:
Aug. 10, 2004
Toru Tanimizu, Ibaraki, JP;
Toyohisa Tsuruta, Shizuoka, JP;
Toshimasa Fukai, Shizuoka, JP;
Akira Nishijima, Shizuoka, JP;
Hiroshi Fujimaki, Shizuoka, JP;
Yoshiyuki Tanimizu, Shizuoka, JP;
Toru Tanimizu, Ibaraki, JP;
Toyohisa Tsuruta, Shizuoka, JP;
Toshimasa Fukai, Shizuoka, JP;
Akira Nishijima, Shizuoka, JP;
Hiroshi Fujimaki, Shizuoka, JP;
Yoshiyuki Tanimizu, Shizuoka, JP;
Japan AE Power Systems Corporation, Tokyo, JP;
Technical Consulting Tanimizu Ltd., Hitachi, JP;
Abstract
An attraction coil, a repulsion coil and a plunger are disposed in a magnetic path of an electromagnetic device. An starting flux generating section is disposed between the attraction coil and the repulsion coil in the magnetic path. A magnetic flux of the starting flux generating section is repulsed magnetically by a magnetic flux of the repulsion coil at a part of the magnetic path to start the plunger. The plunger is attracted to one of first and second magnetic path parts by electromagnetic forces generated from magnetic fluxes of the attraction coil and the repulsion coil.