Circuit breaker lockout device

Patent · Wed Jan 01 04:00:00 EST 1992

OSTI ID:868550

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

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

An improved lockout assembly for locking a circuit breaker in a selected off or on position is provided. The lockout assembly includes a lock block and a lock pin. The lock block has a hollow interior which fits over the free end of a switch handle of the circuit breaker. The lock block includes at least one hole that is placed in registration with a hole in the free end of the switch handle. A lock tab on the lock block serves to align and register the respective holes on the lock block and switch handle. A lock pin is inserted through the registered holes and serves to connect the lock block to the switch handle. Once the lock block and the switch handle are connected, the position of the switch handle is prevented from being changed by the lock tab bumping up against a stationary housing portion of the circuit breaker. When the lock pin installed, an apertured-end portion of the lock pin is in registration with another hole on the lock block. Then a special scissors conforming to O.S.H.A. regulations can be installed, with one or more padlocks, on the lockout assembly to prevent removal of the lock pin from the lockout assembly, thereby preventing removal of the lockout assembly from the circuit breaker.

• 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 5165528
• OSTI ID: 868550
• Country of Publication: United States
• Language: English

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align
apertured-end
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circuit
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conforming
connect
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device
fits
free
handle
holes
hollow
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improved
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regulations
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