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:
Oct. 12, 2021
Filed:
Sep. 19, 2018
Applicant:
Edwards Limited, Burgess Hill, GB;
Inventor:
Nigel Paul Schofield, Burgess Hill, GB;
Assignee:
Edwards Limited, Burgess Hill, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 19/04 (2006.01); F04D 17/16 (2006.01); F04D 23/00 (2006.01); F04D 27/02 (2006.01); F04D 29/02 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
F04D 19/044 (2013.01); F04D 17/168 (2013.01); F04D 23/00 (2013.01); F04D 27/02 (2013.01); F04D 29/023 (2013.01); F04D 29/5853 (2013.01); F05B 2240/51 (2013.01); F05B 2260/231 (2013.01); F05B 2280/1071 (2013.01);
Abstract
A drag pump for pumping gas and a set of vacuum pumps including the drag pump are disclosed. The drag pump comprises: a rotor configured to rotate within a stator component and to drive a gas to be pumped from a gas inlet to a gas outlet; magnetic bearings for rotatably mounting the rotor within the pump; wherein at least a portion of the rotor and stator component configured to contact the gas to be pumped are configured for operation at temperatures above 130° C.
Schofield, Nigel. (2021). Drag pump and a set of vacuum pumps including a drag pump (U.S. Patent No. 11143191). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11143191
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile