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:
Sep. 06, 2011
Filed:
Apr. 19, 2007
Applicants:
Roland Blumenthal, Erftstadt, DE;
Michael Froitzheim, Dormagen, DE;
Inventors:
Roland Blumenthal, Erftstadt, DE;
Michael Froitzheim, Dormagen, DE;
Assignee:
Oerliken Leybold Vacuum GmbH, Cologne, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/056 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a vacuum pump in which the gas bearing is coated with a hard layer, and to a process for preparing such gas bearing of a vacuum pump.