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:
Jan. 29, 2008
Filed:
Dec. 17, 2002
Applicants:
Josef Heppekausen, Wesseling, DE;
Frank Schulte, Cologne, DE;
Inventors:
Josef Heppekausen, Wesseling, DE;
Frank Schulte, Cologne, DE;
Assignee:
Leybold Vakuum GmbH, Cologne, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/00 (2006.01); B05D 7/22 (2006.01); C23C 28/00 (2006.01); C25D 11/18 (2006.01); C25D 11/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the coating of objects made of valve metals or their alloys with a thin barrier layer consisting of the metal and an oxide ceramic layer provided thereon whose surface has been coated with fluoropolymers, characterized in that the fluoropolymers are introduced into the capillary system of the oxide ceramic layer in the form of a solution by vacuum impregnation, followed by removing the non-wetting portions of the solution and drying.