Electrode holder

Details Electrode holder Electrode holder

1986-07-09

1988-08-09

Goldberg, E. A.

Electric heating

Metal heating

For bonding with pressure

219 8625, B23K 1130

Patent

active

047629762

ABSTRACT:
An electrode holder for conducting welding current from a power source via a base plate, a hollow body, and an electrode shaft which is slidably supported within and projects outwardly of the hollow body. The shaft has an enlarged head axially slidably supported within the hollow body and carrying thereon an electrical contact structure which is spring-urged for uniform slidable contact with both the head and the hollow body to effect efficient and uniform transfer of current therebetween. The head has channel-like recesses extending transversely on opposite sides thereof, and an identical contact structure is associated with each recess. The contact structure, in the preferred embodiment, includes a pair of contact blocks disposed adjacent opposite sides of the respective recess and spring-urged apart so that oppositely directed side surfaces on the blocks are slidably engaged with opposite side surfaces of the head to define a current transfer path. The pair of contact blocks are also spring-urged outwardly so that outer surfaces thereof are slidably engaged with an inner surface of the tubular housing to define a current path therebetween.

REFERENCES:
patent: 465866 (1891-12-01), Lemp
patent: 3632958 (1972-01-01), Width
patent: 4417122 (1983-11-01), Thorne

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