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US 2019/0244778 A1Published application
Conductor severing circuit breaker
AssigneeGE Aviation Systems LLC
InventorsNader Dariavach, Kenneth Howard Schnorr
Life of this patent
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Abstract
A circuit breaker or conductor severing assembly can include a housing with a conductor extending through the housing. A piston disposed within the interior of the housing can be actuable within the housing between a first position and a second position, driven by a volume expansion composition. The piston can include a cutter, such that actuation to the second position can sever the conductor extending through the housing.
Claims20
A conductor severing assembly, comprising:
- a housing having an inner surface defining a cavity;
- a conductor extending through the housing;
- a piston disposed within the cavity contoured to match at least a portion of the inner surface and linearly moveable between a first position and a second position;
- and
- an actuator disposed within the cavity;
- whereby the actuator operably drives the piston from the first position to the second position, wherein the second position severs the conductor.
3 more elements
A circuit breaker device, comprising:
- a housing defining a volume expansion chamber, the volume expansion chamber defined by at least one side wall and a top wall;
- a conductor extending through the housing and electrically connecting an input with an output and at least partially defining a circuit;
- a cutter disposed within the housing and having a first blade end and an opposing second end, the second end contoured to corresponding with the at least one side wall of the volume expansion chamber;
- a volume expansion composition disposed within the volume expansion chamber between the top wall and the second end of the cutter, the volume expansion composition configured to volumetrically expand in response to a trigger signal;
- and
- a controller module configured to sense an electrical characteristic of the circuit, and in response to determining the electrical characteristic of the circuit satisfies a threshold electrical characteristic, generating the trigger signal;
- whereby the volumetric expansion of the volume expansion composition within the volume expansion chamber against the second end of the cutter operably forces the first blade end of the cutter through the conductor such that the first blade end electrically disconnects the input from the output.
4 more elements
A method of breaking a circuit comprising:
- sensing, by a sensor, an electrical characteristic of the circuit;
- comparing, by a controller module, the sensed electrical characteristic with a threshold characteristic;
- generating, by the controller module a trigger signal when the sensed electrical characteristic satisfies the threshold characteristic;
- and
- physically severing a conductor of the circuit with a conductor severing assembly including a cutter actuable by a volume expansion composition;
- wherein the trigger signal triggers expansion of the volumetric expansion composition to actuate the cutter.
3 more elements
Dependencies are inferred from the claim text.