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US 4,528,538 AGranted
Combined switch and circuit breaker
OwnerJames H. Anderseninventor
Life of this patent
Estimating the term…
Abstract
A combined switch and circuit breaker device. The circuit breaker includes trip means for interrupting current flow when the current exceeds a predetermined level and for preventing the resumption of current flow until the trip means is reset. The device is adapted such that after interruption of current flow by the trip means, opening the switch resets the trip means.
Claims9
A device comprising:
- a circuit breaker including trip means for interrupting current flow through the circuit breaker in response to said current flow exceeding a predetermined level and for subsequently preventing the resumption of current flow through the circuit breaker until the trip means is reset;
- and
- a switch connected in series with the circuit breaker, the switch including a switch element movable between a first position in which the switch is open and a second position in which the switch is closed, the switch being constructed and arranged such that after interruption of current flow by the trip means, moving the switch element to the first position first opens the switch and then resets means to permit current flow through said circuit breaker.
Dependencies are inferred from the claim text.