Arc extinguishing device made of conductive plastic
OwnerThomas A. Edds, Willard J. Rezacinventors
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Abstract
The present invention provides a static dissipative composition as a method of removing electric potential from an arc extinguishing device in an electrical distribution device. The inventive composition includes a thermoplastic base resin and an effective amount of a conductive modifier to exhibit static dissipative properties and remove electric potential from the arc extinguishing device of an electrical distribution device. Arc extinguishing devices for use in circuit breakers and the like are made of these inventive compositions.
Claims41
An arc extinguishing device for deposition along a pre-determined path of movement between two electrical contacts in an electrical distribution device, the device comprising:
- a generally u-shaped member having a bight portion defined by a bottom wall with two upstanding side walls, the bight portion having sufficient width to allow the movement of the electrical contacts between the two side walls;
- the u-shaped member made of a conductive plastic composition, the composition having a thermoplastic base resin and an effective amount of a conductive modifier to exhibit static dissipative properties and remove electric potential from the u-shaped member.
An electrical distribution device comprising:
- a housing;
- a pair of electrical contacts positioned within the housing, at least one contact being movable in and out of engagement with the other along a pre-determined path;
- an arc extinguishing device disposed along the pre-determined path of movement, the device having a generally u-shaped member having a bight portion defined by a bottom wall with two upstanding side walls, the bight portion having sufficient width to allow the movement of the electrical contacts between the two side walls;
- the u-shaped member made of a conductive plastic composition, the composition having a thermoplastic base resin and an effective amount of a conductive modifier to exhibit static dissipative properties and remove electric potential from the u-shaped member.
A static dissipative composition for removing electric potential from an arc extinguishing device in an electrical distribution device, the composition comprising:
- a thermoplastic base resin;
- and
- an effective amount of a conductive modifier to exhibit static dissipative properties and remove electric potential from the arc extinguishing device of an electrical distribution device.
A method of removing electric potential from an arc extinguishing device utilized in an electrical distribution device, the method comprising:
- molding an arc extinguishing device from a conductive plastic composition, the composition having a thermoplastic base resin and an effective amount of a conductive modifier to exhibit static dissipative properties.
Dependencies are inferred from the claim text.