Patent
Instantaneous trip device of a circuit breaker
TLDR
A limiting circuit breaker with a molded case comprises an overpressure actuator which brings about actuation by a piston, subjected to this overpressure, of the circuit breaker trip bar as discussed by the authors.Abstract:
A limiting circuit breaker with a molded case comprises an overpressure actuator which, when an overpressure occurs in the arc extinguishing chamber due to the action of an arc drawn by the electrodynamic repulsion of the contacts, brings about actuation by a piston, subjected to this overpressure, of the circuit breaker trip bar. The overpressure actuator forms an almost leaktight assembly.read more
Citations
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Patent
Range of molded case low voltage circuit breakers
TL;DR: In this article, a modular low voltage multipole circuit breaker, including a plurality of identical single-pole breaking units each including a parallelipipedic insulating box having opposite parallel large side faces and two opposite parallel small side faces, was presented.
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Rotary contact assembly for high ampere-rated circuit breakers
TL;DR: In this article, a rotary contact arm is used within a plurality of single pole circuit breakers ganged together to form a single multi-pole circuit breaker to provide uniform contact wear among the associated circuit breaker contacts.
Patent
Rotary contact assembly for high ampere-rated circuit breakers
TL;DR: In this paper, a rotary contact assembly employs a common pivot between the rotor assembly and the contact arm, and a pair of off-center expansion springs directly engage the rotor at one end and engage the contact arms via a linkage arrangement at an opposite end thereof.
Patent
Circuit breaker thermal magnetic trip unit
TL;DR: In this article, a thermal-magnetic trip unit was proposed for use in a circuit breaker for eliminating the requirement for latching surfaces while still providing the additional force and motion required to trip the breaker during a short circuit or an overcurrent trip event.
Patent
Pressure sensitive trip mechanism for a rotary breaker
TL;DR: In this article, a pressure sensitive trip mechanism for actuating a circuit breaker operating mechanism to trip the circuit breaker includes a trip lever and a trip bar, rotated about a first pivot.
References
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Patent
Blowoff means for circuit breaker latch
TL;DR: A circuit breaker with automatic fault responsive trip means for releasing a latch to permit the operating mechanism to open the contacts is provided with a baffle which extends into the arcing gas venting passage as mentioned in this paper.
Patent
Circuit breaker fitted with a device for indicating a short circuit
Bernard Daussin,Hennemann Jean +1 more
TL;DR: In this paper, a short-circuit indicating device is used to indicate the presence of an electric arc in the breaking chambers of a circuit breaker or cut-out circuit, which is actuated by the gas pressure waves generated by the electric arc.
Patent
Static tripping device for a circuit breaker in a cast case
TL;DR: A static trip device comprises an instantaneous tripping device consisting of arc detectors 46R, 46S, 46T disposed in the vicinity of the main contacts 17R, 17S, 17T of the circuit breaker 10 as mentioned in this paper.