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:
Feb. 15, 1994
Filed:
Jul. 07, 1992
Joachim Szczyrbowski, Goldbach, DE;
Goetz Teschner, Gelnhausen, DE;
Siegfried Beisswenger, Alzenau, DE;
Leybold Aktiengesellschaft, Hanau, DE;
Abstract
In a method and an apparatus for coating a substrate (26) with electrically nonconductive coatings from an electrically conductive target (25) in a reactive (e.g., oxidizing) atmosphere, with a cathode (17) disposed in an evacuable coating chamber (16) and electrically cooperating with the target (25), the cathode (17), for the purpose of suppressing arcs, is connected to a DC power source and can be brought to a positive potential for brief time periods by means of an additional circuit (22, and 3 to 15, respectively), the frequency of this periodical polarity reversal being adjustable, depending on the coating to be deposited
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile