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:
Jun. 28, 2016

Filed:

Apr. 24, 2014
Applicant:

Siemens Aktiengesellschaft, Munich, DE;

Inventors:

Dong Yang, Suzhou, CN;

Deng Ke Zhang, Suzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 3/20 (2006.01); H01H 9/20 (2006.01); H01H 9/28 (2006.01);
U.S. Cl.
CPC ...
H01H 9/20 (2013.01); H01H 9/282 (2013.01); H01H 2300/024 (2013.01);
Abstract

Disclosed is a handle locking device, including a first frame, a first snap hook and a second frame. A second snap hook is provided on the first frame; the first snap hook is rotatably mounted on the first frame; the second frame is rotatably mounted on the first frame; a protruding portion is formed on the second frame; and the protruding portion can push the first snap hook towards the first frame. By having the first snap hook and second snap hook disposed asymmetrically on the first frame, accidental mounting of the 'OFF' position of the handle locking device in the 'ON' position of the circuit breaker during installation by an operator can be avoided. Moreover, since the protruding portion can push the first snap hook towards the first frame, forced deformation of the snap claw and second snap hook can be prevented.


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