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:
Mar. 26, 2019

Filed:

Jun. 06, 2014
Applicant:

Thomas & Betts International, Llc, Wilmington, DE (US);

Inventors:

Jeffrey S. Gieger, Dingmans Ferry, PA (US);

Charles Bindics, Northhampton, PA (US);

Assignee:

Thomas & Betts International LLC, Wilmington, DE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 31/06 (2006.01); H01H 3/22 (2006.01); H01H 3/26 (2006.01);
U.S. Cl.
CPC ...
H01H 31/06 (2013.01); H01H 3/227 (2013.01); H01H 3/26 (2013.01); H01H 2300/024 (2013.01); H01H 2300/056 (2013.01);
Abstract

A safety lockout device for switchgear includes a movable member adapted to be moved from a first position to a second position. A switch is adapted to electrically isolate a motor in the switchgear and a blocking arm is coupled to a shaft of the motor. In the first position, the movable member engages the switch to close the electrical motor circuit and the blocking arm is free to rotate with the motor shaft. In the second position, the movable member moves away from the switch so that the switch is in an open circuit state disconnecting power to the motor and a portion of the movable member is moved to a position whereby the blocking arm engages the movable member to prevent rotation of the motor shaft and a change of state of the switchgear. The position of the movable member relative to the switch provides a visual indication of the operating state of the switchgear.


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