Modular accessory mechanical lock-out mechanism

Details Modular accessory mechanical lock-out mechanism Modular accessory mechanical lock-out mechanism

1996-03-12

1997-05-20

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 72, 335 34, H02H 300

Patent

active

056317980

ABSTRACT:
A combined bell alarm and lock-out accessory is connected with the electronic trip unit that controls a high ampere rated circuit breaker. The accessory interacts with the circuit breaker operating mechanism to activate the bell alarm upon circuit interruption and to prevent the closing of the circuit breaker contacts until the accessory is manually reset. The circuit breaker lock-out mechanism interfaces between the circuit breaker operating mechanism and the accessory to insure that the contacts remain open until the accessory is completely reset.

REFERENCES:
patent: 4001739 (1977-01-01), Powell et al.
patent: 4301434 (1981-11-01), Castonguay
patent: 4672501 (1987-06-01), Bilal et al.
Castonguay et al, "Operating Mechanism for High Ampere-rated Circuit"; U.S. S/N: 08/202,140 (Docket: 41PR-7116).
Castonguay et al, "Handle Operator Assembly for High Ampere-rated Circuit Breaker" U.S. S/N: 08/214,522 (Docket: 41PR-7130).
Castonguay et al, "A Latching Arrangement for High-rated Circuit Breaker Operating Springs"; U.S. S/N: 08/218,287 (Docket:41PR-7131).
Castonguay et al, "Rating Module Unit for HIgh Ampere-rated Circuit Breaker" U.S. S/N: 08/203,062 (Docket:41PR-7124).
Castonguay et al, "Accessory Compartment for High Ampere-rated Circuit Breaker" U.S. S/N: 08/248,900 (Docket: 41PR-7143).
Pollman et al, "Bell Alarm and Lockout for High Ampere-rated Circuit Breakers" U.S. S/N: 08/248,910 (Docket: 41PR-7179).
Castonguay et al, "Sequential Interlock Arrangement for a High Ampere-rated Circuit" U.S. S/N: (Docket:41PR-7138X).

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