Contact member for supplying electrical current to an electro-er

Details Contact member for supplying electrical current to an electro-er Contact member for supplying electrical current to an electro-er

1986-11-24

1988-03-22

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

21913761, 439 5, B23H 704, H01R 4100

Patent

active

047330384

ABSTRACT:
A contact device for an electrical current supply of an electrode wire operating in an electro-erosion machine having an electrical conducting part, mounted in free rotation and solidly attached to a shaft extending perpendicularly to the plane of rotation. The shaft is, preferably, also conducting and extends through a leakproof cavity, containing a conductive fluid, such as mercury for example. The conducting part is preferably a steel roller, provided either with a V-shaped groove on its periphery, or animated with a back and forth movement parallel at its axis of rotation.

REFERENCES:
patent: 2066588 (1937-01-01), Taylor
patent: 2428546 (1947-10-01), Breitenstein
patent: 2832056 (1958-04-01), Stutzman
patent: 3022479 (1962-02-01), Rohrbach
patent: 3267253 (1966-08-01), Gueugnier
patent: 3835436 (1974-09-01), Klaudy
patent: 4250371 (1981-02-01), Haug et al.
patent: 4263116 (1981-04-01), Inoue
patent: 4566744 (1986-01-01), Engelenburg et al.

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