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:
Jun. 03, 2003
Filed:
Oct. 02, 2001
Shigeki Morita, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an electromagnetic actuator wherein an electromagnetic driving force for a movable component fixed to a driven member is continuously controlled by a control coil installed in a fixed component, the movable component is light weighted and a high fabricating accuracy of the actuator is not required. The electromagnetic actuator comprises a movable magnet of the movable component and a fixed magnet of the fixed component, and the control coil is installed between the first magnetic pole of the movable magnet and the first magnetic pole of the fixed magnet. And the movable magnet of the movable component is controlled by a totalized electromagnetic force wherein the totalized electromagnetic force is a sum of an electromagnetic repulsive force by the fixed magnet and an electromagnetic controlling force by the control coil of the fixed component.