The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1977
Filed:
Sep. 20, 1976
Otto Winkler, Balzers, FL;
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.