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US Patent 7946197 Breaker racking tool

Patent 7946197 was granted and assigned to Ontario Power Generation on May, 2011 by the United States Patent and Trademark Office.

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Current Assignee
Ontario Power Generation
Ontario Power Generation
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7946197
Date of Patent
May 24, 2011
Patent Application Number
12055830
Date Filed
March 26, 2008
Patent Primary Examiner
‌
David B. Thomas
Patent abstract

Disclosed is a racking tool for use with a breaker having a frontwardly-projecting racking screw, the screw being rotatable, about a frontwardly-orientated screw axis, between connected and disconnected positions. The racking tool comprises: a gripping tool that, in use, engages said screw and is rotatable about the screw axis to drive the screw between the connected and disconnected positions; an angle drive mechanism coupled to the gripping tool: and a shaft having a first end operatively coupled to the drive mechanism, a second end and a shaft axis extending from the first to the second end, the shaft, in use, being angularly orientated to the screw axis and adapted such that, with the gripping tool engaged with said racking screw, the screw can be rotated between the connected and disconnected positions by a user standing to one side of the breaker and rotating the shaft about its axis.

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