Lockout device for high voltage circuit breaker

Patent · Fri Jan 01 04:00:00 EST 1993

OSTI ID:868642

Kozlowski, Lawrence J ^[1]; Shirey, Lawrence A ^[2]

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1. New Kensington, PA
2. North Huntingdon, PA

An improved lockout assembly is provided for a circuit breaker to lock the switch handle into a selected switch position. The lockout assembly includes two main elements, each having a respective foot for engaging a portion of the upper housing wall of the circuit breaker. The first foot is inserted into a groove in the upper housing wall, and the second foot is inserted into an adjacent aperture (e.g., a slot) in the upper housing wall. The first foot is slid under and into engagement with a first portion, and the second foot is slid under and into engagement with a second portion of the upper housing wall. At the same time the repsective two feet are placed in engagement with the respective portions of the upper housing wall, two holes, one on each of the respective two main elements of the assembly, are placed in registration; and a locking device, such as a special scissors equipped with a padlock, is installed through the registered holes to secure the lockout assembly on the circuit breaker. When the lockout assembly of the invention is secured on the circuit breaker, the switch handle of the circuit breaker is locked into the selected switch position and prevented from being switched to another switch position.

• Research Organization: Westinghouse Electric Corp
• DOE Contract Number: AC11-89PN38014
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5181602
• OSTI ID: 868642
• Country of Publication: United States
• Language: English

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