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. 03, 2018
Filed:
Oct. 28, 2014
Applicant:
Oerlikon Leybold Vacuum Gmbh, Cologne, DE;
Inventor:
Heinrich Engländer, Linnich, DE;
Assignee:
LEYBOLD GMBH, Köln, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/32 (2006.01); F04D 19/04 (2006.01); F04D 29/02 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 29/324 (2013.01); F04D 19/042 (2013.01); F04D 29/023 (2013.01); F04D 29/321 (2013.01); F04D 29/668 (2013.01);
Abstract
A rotor disc for a vacuum pump, in particular a turbo molecular pump, having an inner ring. The inner ring is connected to a plurality of blade elements extending radially outward. The inner ring has at least one expansion joint. For assembly, the inner ring can be surrounded by a retaining ring and arranged on a hollow cylindrical carrier element as applicable.