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:
Oct. 14, 2013
Applicant:
Edwards Limited, Crawley, West Sussex, GB;
Inventors:
Mohammad Eghtesadi Bahrami, Crawley, GB;
Richard Glyn Horler, Crawley, GB;
Assignee:
Edwards Limited, Burgess Hill, West Sussex, GB;
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/056 (2006.01); F04D 29/058 (2006.01); F04D 19/04 (2006.01); F04D 27/00 (2006.01); F04D 29/059 (2006.01); F16C 19/52 (2006.01); F16C 32/04 (2006.01); F04D 29/053 (2006.01); F04D 29/26 (2006.01);
U.S. Cl.
CPC ...
F04D 29/058 (2013.01); F04D 19/042 (2013.01); F04D 19/048 (2013.01); F04D 27/001 (2013.01); F04D 29/053 (2013.01); F04D 29/056 (2013.01); F04D 29/059 (2013.01); F04D 29/26 (2013.01); F16C 19/52 (2013.01); F16C 32/0444 (2013.01); F16C 2233/00 (2013.01); F16C 2360/45 (2013.01);
Abstract
The present invention relates to a vacuum pump comprising a vacuum pumping mechanism comprising a rotor supported for rotation by a drive shaft, a first bearing assembly for controlling movement of the rotor during rotation of the drive shaft, a back-up bearing assembly for limiting said movement and a sensor for sensing when said movement is limited by the back-up bearing assembly.