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:
Nov. 04, 1997
Filed:
May. 18, 1995
Applicant:
Inventors:
Naoki Muramatsu, Aichi, JP;
Yoshihide Kinbara, Aichi, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
361185 ; 307131 ;
Abstract
A magnetic contactor including a phase switch and a phase angle adjusting device for adjusting the phase angle at which the phase switch provides for the supply of voltage to an electromagnet to energize the electromagnet. The phase angle is adjusted, via the phase angle adjusting device, to a position at which a collision velocity of a movable iron core against a fixed iron core of the magnetic contactor is lowered, and where the impact of the movable iron core is reduced to increase the life of the magnetic contactor.