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:
Apr. 24, 2001
Filed:
Jun. 24, 1999
Applicant:
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 1/600 ;
U.S. Cl.
CPC ...
C23C 1/600 ;
Abstract
A device for vacuum coating bulk material includes a rotating holder for accommodating the bulk material, a plasma coating source arranged within the rotating holder, as well as a device, arranged within the rotating holder, for cleaning the bulk material using plasma. During the coating process, the rotational speed of the rotating holder is less than the speed necessary for producing a centrifugal force for fixing the bulk material against the inner wall of the rotating holder. The plasma coating source and the plasma cleaning device are arranged in such a way that their spheres of action overlap.