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.

Date of Patent:
Jun. 30, 2020

Filed:

Dec. 10, 2015
Applicant:

Edwards Limited, Burgess Hill, Sussex, GB;

Inventor:

Oliver James Rudge, Burgess Hill, GB;

Assignee:

Edwards Limited, West Sussex, GB;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 19/04 (2006.01); F04D 29/059 (2006.01); F04D 29/063 (2006.01); F16C 33/66 (2006.01); F16C 19/06 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F04D 19/042 (2013.01); F04D 19/044 (2013.01); F04D 29/059 (2013.01); F04D 29/063 (2013.01); F16C 19/06 (2013.01); F16C 33/6648 (2013.01); F16C 33/6659 (2013.01); F04D 29/4206 (2013.01); F16C 2360/45 (2013.01);
Abstract

A vacuum pump lubricant supply system has a lubricant reservoir and a wicking element. The body portion has opposed major surfaces and a finger. The lubricant reservoir has a major surface engaging one of the opposed major surfaces of the body portion so that lubricant can migrate through the engaging major surfaces into the body portion. The finger projects from the body portion to engage a lubricant transfer device provided on a rotor shaft so that lubricant can wick from the body portion to the lubricant transfer device via the finger. The body portion has an edge provided with a cut-out so that the major surface of the body portion that engages the major surface of the lubricant container has a total surface area that is less than the total surface area of the major surface of the lubricant container.


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