Resistance welding pin

Details Resistance welding pin Resistance welding pin

1981-10-19

1984-01-31

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

373137, B23K 920

Patent

active

044292090

ABSTRACT:
The present invention is directed to an improved resistance welding pin especially adapted for fastening of batts of insulating material to metallic air conduits, such as the ducts of air conditioning and heating systems. The pin is characterized by a novel corrugated shank portion extending between the head of the pin and the sharpened tip which functions, inter alia, to dissipate the heat generated in the shank during welding, with a plurality of attendant advantages.

REFERENCES:
patent: 2172553 (1939-09-01), Tripp
patent: 2638525 (1953-05-01), Candy
patent: 3624340 (1971-11-01), Hinden
patent: 4031350 (1977-06-01), Hinden et al.

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