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.

Date of Patent:
Jul. 18, 1989

Filed:

Jun. 13, 1988
Applicant:
Inventors:

Masao Miura, Kanagawa, JP;

Isamu Osima, Kanagawa, JP;

Assignee:

Fuji Electric Co., Ltd., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
335195 ; 335190 ;
Abstract

A circuit breaker of a current-limiting type, which is able to open quickly by using a magnetic repulsive force generated when currents of opposite direction flow through a fixed contactor and a movable contactor which are arranged in parallel to each other. The movable contactor opens or rotates around a supporting shaft. Then, a guide pin, secured at the base portion of the movable contactor, slides into a guiding longish opening and passes over a turning point formed in the longish opening. As a result, the line of action of a compressed spring force changes its direction in order to push up the movable contactor to the full open position.


Find Patent Forward Citations

Miura, Masao. (1989). Circuit breaker (U.S. Patent No. 4849726). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4849726

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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