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:
Nov. 21, 2017
Filed:
Sep. 10, 2014
Applicant:
Pfeiffer Vacuum Gmbh, Asslar, DE;
Inventor:
Armin Conrad, Herborn, DE;
Assignee:
PFEIFFER VACUUM GMBH, Asslar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/09 (2006.01); F04D 13/06 (2006.01); F04D 29/05 (2006.01); F04D 19/04 (2006.01); F04D 29/64 (2006.01); F04D 27/02 (2006.01); F04D 29/66 (2006.01); H01J 37/32 (2006.01); F04D 29/54 (2006.01); F04B 37/08 (2006.01); F04B 37/14 (2006.01); F04D 29/058 (2006.01);
U.S. Cl.
CPC ...
F04D 29/644 (2013.01); F04B 37/08 (2013.01); F04B 37/14 (2013.01); F04D 19/04 (2013.01); F04D 19/042 (2013.01); F04D 27/0292 (2013.01); F04D 29/542 (2013.01); F04D 29/665 (2013.01); H01J 37/32834 (2013.01); F04D 29/058 (2013.01); F16C 2360/45 (2013.01);
Abstract
An arrangement includes a vacuum pump having a rotor, and a drive unit for driving the rotor and having at least one magnetic interference field-generating component and at least one compensation coil for compensating the magnetic interference field generated by the at least one component.