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US 4,209,761 AGranted
Circuit breaker auxiliary switch apparatus
AssigneeGeneral Electric Company
InventorsKeith W. Klein, Joseph M. Palmieri
Life of this patent
Estimating the term…
Abstract
Actuating elements, operatively coupled with an external circuit breaker manual operating handle and with a circuit breaker internal trip actuating member, are selectively operated to activate an auxiliary switch when the circuit breaker is opened either manually via its operating handle or automatically in response to an abnormal external circuit condition.
Claims5
Auxiliary switch apparatus for a molded case circuit breaker having an internal trip unit including a pivotal trip actuating member and an operating mechanism including a pivotal manual operating handle, said apparatus comprising, in combination:
- A. an accessory case affixed in side-by-side relation with the circuit breaker;
- B. an auxiliary switch mounted within said accessory case, said switch including a switch actuating arm;
- C. a first pin mounted by the breaker operating handle for extension into said accessory case;
- D. a second pin mounted by the breaker trip actuating member for extension into said accessory case in proximate relation with said switch actuating arm, whereby tripping of the breaker is accompanied by pivotal movement of the trip actuating member in a direction to swing said second pin into switch actuating engagement with said arm;
- and
- E. translating means movably mounted within said accessory case and activated into switch actuating engagement with said arm by the movement of said first pin as the breaker handle is pivoted to its OFF position.
3 more elements
Dependencies are inferred from the claim text.