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. 20, 1990
Filed:
Mar. 15, 1988
Applicant:
Inventors:
Hans Veltrop, Grubbenvorst, NL;
Harald Wesemeyer, Wiehl, NL;
Boudewijn J Buil, Belfeld, NL;
Simon Boelens, Venlo, NL;
Assignee:
Hauzer Holding B.V., Pa Venlo, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315326 ; 31511141 ;
Abstract
A method and device are provided to prevent grooves from occurring on a cathode surface of a cathode arc discharge evaporating device by adding a second movement to a first rotational movement of a magnetic field generator within the device, which enables the arc spot to scan a substantial portion of the cathode surface.