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. 29, 1987
Filed:
Jun. 15, 1987
Applicant:
Inventors:
Hiroshi Fujii, Fukuyama, JP;
Tsukasa Iio, Fukuyama, JP;
Yasusi Genba, Fukuyama, JP;
Hideaki Moriwaki, Fukuyama, JP;
Yoshinori Mochizuki, Fukuyama, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
2001 / ; 200305 ;
Abstract
To prevent a separation arc from migrating along the movable contact arm 12 of a circuit breaker and welding its biasing spring 14, the arm is protected by an insulating shield 22 underlying its lower face, flanking its sides, and having outwardly extending tabs 22c underlying the spring halves.