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:
Dec. 17, 1991
Filed:
Sep. 17, 1990
Applicant:
Inventors:
Mitsugu Takahashi, Amagasaki, JP;
Yoshiaki Kobayashi, Amagasaki, JP;
Takao Mitsuhashi, Amagasaki, JP;
Shinji Yamagata, Fukuyama, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
335 16 ; 335147 ; 335202 ; 2001 / ;
Abstract
In a twin-contact type current limiting apparatus in which two contacts are electrically connected in series with each other, each of movable contact arms (23a, 23b) is extended in substantially parallel with and along each of stationary contact arms (21a, 18a), thereby obtaining balanced electromagnetic repulsions when an excessive current flows.