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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.:

US 9704673 B1

PDFFull Text
Expired
Date of Patent:
Jul. 11, 2017

Filed:

Sep. 29, 2015

Circuit breaker

Applicant:

Fuji Electric Fa Components & Systems Co., Ltd., Tokyo, JP;

Inventors:

Takamine Hirose, Kounosu, JP;

Yoshinobu Hamada, Kounosu, JP;

Yohei Hosooka, Ohtawara, JP;

Assignee:

FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD., Tokyo, JP;

Attorney:

Manabu Kanesaka

Primary Examiner:

Anthony R Jimenez

Int. Cl.
CPC ...
H01H 1/64 (2006.01); H01H 1/66 (2006.01); H01H 9/02 (2006.01); H01H 9/06 (2006.01); H01H 13/00 (2006.01); H01H 19/04 (2006.01); H01H 19/08 (2006.01); H01H 21/00 (2006.01); H01H 21/08 (2006.01); H01H 71/04 (2006.01); H01H 9/16 (2006.01); H01H 21/22 (2006.01); H01H 9/04 (2006.01);
U.S. Cl.
CPC ...
H01H 21/08 (2013.01); H01H 9/16 (2013.01); H01H 21/22 (2013.01); H01H 71/04 (2013.01); H01H 9/04 (2013.01); H01H 2071/046 (2013.01);
Abstract

A circuit breaker includes a main body case, an operating handle having a base portion and a knob portion protruding outwardly through a handle window frame opened in a cover of the main body case; a first shutter arranged between the base portion of the operating handle and the handle window frame, and disposed on the base portion, the first shutter being formed with a loose-fit hole to loosely fit the knob portion therethrough; and a second shutter disposed on the first shutter to move along with the knob portion. At ON and OFF positions of the operating handle, the first shutter extends beyond a front/rear edge of the handle window frame in a front-back direction to close the handle window frame, and the second shutter extends beyond a front/rear edge of the loose-fit hole in the front-back direction to close the loose-fit hole.

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