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:
Jul. 23, 2019
Filed:
May. 05, 2015
Applicant:
Edwards Limited, Burgess Hill, West Sussex, GB;
Inventors:
Andrew Waye, Forest Row, GB;
Barrie Dudley Brewster, Brighton, GB;
Assignee:
Edwards Limited, Burgess Hill, West Sussex, GB;
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/058 (2006.01); H02K 7/09 (2006.01); F16C 32/04 (2006.01); H01F 7/02 (2006.01); F04D 19/04 (2006.01);
U.S. Cl.
CPC ...
F04D 29/058 (2013.01); F04D 19/048 (2013.01); F16C 32/0425 (2013.01); H01F 7/021 (2013.01); H02K 7/09 (2013.01); F16C 2360/45 (2013.01);
Abstract
The present invention is directed to a magnet for a magnetic bearing arrangement, a bearing arrangement comprising said magnet, and a vacuum pump comprising said bearing arrangement. In particular the invention can be particularly useful in a magnetic bearing arrangement that reduces stray magnetic fields for a turbomolecular vacuum pump, although it is understood that the invention is not limited to this field and other applications will be understood by the skilled person.