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. 17, 2009
Filed:
Nov. 13, 2006
Mikio Tsukada, Toyoake, JP;
Shinji Usami, Okazaki, JP;
Mikio Tsukada, Toyoake, JP;
Shinji Usami, Okazaki, JP;
Denso Corporation, Kariya, JP;
Abstract
An electromagnetic switch has a magnetic core having a base member and a disc member. The disc member is made of plates laminated along a pulling direction and has an inner hole. The base member has both a first portion and a second portion having a groove on its outer surface and disposed in the hole. An inner portion of a particular plate among the plates is disposed in the groove so as to fasten the particular plate to the base member. When the core is magnetized in response to excitation of a coil, a plunger is moved toward the first portion of the core along the pulling direction, a movable contact moved with the plunger comes in contact with a fixed contact electrically connected with a motor, and electric power is supplied to the motor through the fixed and movable contacts.