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. 08, 2022
Filed:
Jul. 09, 2019
Applicant:
Edwards Limited, Burgess Hill, GB;
Inventor:
Emiliano Lucchetta, Burgess Hill, GB;
Assignee:
Edwards Limited, West Sussex, GB;
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/66 (2006.01); F04D 19/04 (2006.01); F04D 29/056 (2006.01); F04D 29/06 (2006.01); F16C 19/06 (2006.01); F16C 33/38 (2006.01); F16C 33/41 (2006.01);
U.S. Cl.
CPC ...
F16C 33/6651 (2013.01); F04D 19/042 (2013.01); F04D 29/056 (2013.01); F04D 29/06 (2013.01); F16C 19/06 (2013.01); F16C 33/3887 (2013.01); F16C 33/418 (2013.01); F16C 33/6681 (2013.01); F16C 2360/45 (2013.01);
Abstract
A bearing cage for a rotor bearing of a turbomolecular pump. The bearing cage includes a plurality of bearing pockets each of which, in use, houses a bearing ball such that the bearing ball operably engages an inner race and an outer race of the rotor bearing. Each bearing pocket of the bearing cage has a primary chamber for housing the bearing ball and each bearing pocket further includes a sump.