Pneumatic-electric quick disconnect connector for a plasma arc t

Details Pneumatic-electric quick disconnect connector for a plasma arc t Pneumatic-electric quick disconnect connector for a plasma arc t

1989-09-12

1991-12-24

Desmond, Eugene F.

Electrical connectors

Having retainer or passageway for fluent material

Fluent material transmission line

219 75, 439181, H01R 460

Patent

active

050748025

ABSTRACT:
A quick disconnect connector for both electrical power and gas flow to a plasma arc torch has a plug that includes at least one pin contact and a mating receptacle that includes at least one socket contact that receives the pin contact axially. Both contacts have a central axial passage that conducts the gas flow at a sufficient rate to cool the contacts when they are conducting a large heavy operating current, typically 20 to 1,000 amperes, D.C. For high voltage operation, each contact is closely surrounded by a barrier sleeve of a dielectric material which is supported in an insulating body filling the plug or receptacle. The sleeved contacts are mounted to pivot independently of one another about a central mounting boss for self-alignment on mating. O-rings seal the sleeves to the insulator bodies to restrict the gas to a connection zone of the connector. The sleeve barrier axial length and that of the insulating bodies exceed the minimum tracking distance at the high voltages (typically 5 KV) and high frequencies (typically 2-3 mHz) associated with start-up of the torch.

REFERENCES:
patent: 3544758 (1970-12-01), Nolin
patent: 4600824 (1986-07-01), Moerke

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