Electricity: circuit makers and breakers – Switch activation inhibitor – Actuator blocking device
Patent
1999-06-01
2000-10-24
Friedhofer, Michael
Electricity: circuit makers and breakers
Switch activation inhibitor
Actuator blocking device
200 5002, 200333, H01H 902
Patent
active
061370681
ABSTRACT:
A combined handle-guard and grip protects the actuator-handle of a circuit breaker from being inadvertently displaced during normal circuit breaker operation while also positioning a user's fingers to automatically trip the circuit breaker into a non-conducting state whenever the user grasps the grip surfaces of the handle-guard to remove or install the circuit breaker. In a preferred embodiment, the shield surfaces form a slot dimensioned to permit the unrestricted movement of the circuit breaker handle. A first grip surface is disposed at one of the slot. A second grip surface is disposed at the other end of the slot. A passageway in the second grip surface is shaped and positioned so that a distal portion of the circuit breaker actuator-handle extends through the passageway when the circuit breaker is in an on-position. When the user grasps the second grip surface, pressure is applied to the actuator-handle, tripping the circuit breaker into a non-conducting state whenever the circuit breaker is inserted or removed.
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Astec International Limited
Friedhofer Michael
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