Vacuum apparatus for treating articles, particularly a vacuum ev

Details Vacuum apparatus for treating articles, particularly a vacuum ev Vacuum apparatus for treating articles, particularly a vacuum ev

1976-09-20

1977-09-06

Feldbaum, Ronald

Coating apparatus

With cutting, punching or tearing of work

Web or sheet work

C23C 1308

Patent

active

040461017

ABSTRACT:
A vacuum apparatus for treating articles, particularly a vacuum evaporator, for applying coatings of material onto articles, such as lenses, comprises a housing which defines an interior treatment chamber. The chamber includes a support means for supporting a substance to be evaporated which includes means for electrically heating the substance located at a bottom wall and which includes an opposite top wall which carries a support for the article to be coated or treated. A foil material capable of being electrically heated is supported in the housing in spaced location from the side and the top walls at least and it is held in position by clamping elements which provide means for connecting the foil to an electrical supply source for supplying a heating current.

REFERENCES:
patent: 2408614 (1946-10-01), Dimmick
patent: 2557379 (1951-06-01), Hancock et al.
patent: 2812411 (1957-11-01), Moles
patent: 2884894 (1959-05-01), Ruppert et al.
patent: 2986115 (1961-05-01), Toulmin
patent: 3757083 (1973-09-01), Dietz et al.
patent: 3957547 (1976-05-01), Schmider

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