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:
Jun. 08, 1982
Filed:
Aug. 29, 1980
Hans K Pulker, Triesen, LI;
Helmut Daxinger, Wangs, CH;
Balzers Aktiengesellschaft, , LI;
Abstract
A method of controlling color hues of coatings particularly gold color coatings on substrate using a housing capable of being evacuated, and having an evacuated chamber, a hot cathode chamber in communication with the evacuated chamber and a support structure for the substrate to be coated and a crucible for the material to be evaporated acting as an anode and with a hot cathode in the hot cathode chamber, comprises evaporating the material in the evaporation chamber while maintaining a residual gas atmosphere containing nitrogen therein, producing an electric gas arc discharge between the cathode and the anode of a low voltage, and mixing a carbon containing gaseous compound to the residual gas while applying a negative biasing voltage relative to the housing to the substrate to be coated.