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. 30, 2024
Filed:
Jul. 22, 2020
Applicant:
Edwards Limited, Burgess Hill, GB;
Inventors:
Alan Ernest Kinnaird Holbrook, Burgess Hill, GB;
Nigel Paul Schofield, Burgess Hill, GB;
Assignee:
Edwards Limited, Burgess Hill, GB;
Primary Examiner:
Int. Cl.
CPC ...
F03C 2/00 (2006.01); F03C 4/00 (2006.01); F04C 2/00 (2006.01); F04C 2/02 (2006.01); F04C 15/00 (2006.01); F04C 18/00 (2006.01); F04C 18/02 (2006.01); F04C 27/00 (2006.01); F04C 23/00 (2006.01);
U.S. Cl.
CPC ...
F04C 18/0215 (2013.01); F04C 2/025 (2013.01); F04C 15/0023 (2013.01); F04C 27/005 (2013.01); F04C 23/008 (2013.01); F04C 2240/801 (2013.01); F05C 2225/04 (2013.01);
Abstract
A scroll pump () comprising a first scroll comprising a first spiral wall (); a second scroll comprising a second spiral wall (), the second spiral wall being intermeshed with the first spiral wall; and a pad () formed from a different material to the first and second scrolls, the pad being located between the first and second scrolls radially inwards or outwards of the first and second spiral walls.