Apparatus for treating the inside surface of an article with an

Details Apparatus for treating the inside surface of an article with an Apparatus for treating the inside surface of an article with an

1984-05-10

1986-07-08

Pianalto, Bernard D.

Coating apparatus

With vacuum or fluid pressure chamber

With means to apply electrical and/or radiant energy to work...

118723, 118724, S05D 314

Patent

active

045986630

ABSTRACT:
To be able to treat the inside surface of metallic tubes by means of an electric glow discharge at pressures lower than heretofore in order to heat or coat such a surface, for example, an auxiliary electrode is positioned inside an article to be treated such as a tube extending close to the tube wall and parallel to the tube axis, with the auxiliary electrode and the tube being rotatable relative to each other. The apparatus and method are primarily for coating the inside of tubes.

REFERENCES:
patent: 4262035 (1981-04-01), Jaeger et al.
patent: 4349582 (1982-09-01), Beerwald
patent: 4418645 (1983-12-01), Knights
patent: 4508748 (1985-04-01), Eriksson

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