Invention Grant
- Patent Title: Vacuum pump lubricant supply systems
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Application No.: US15541820Application Date: 2015-12-10
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Publication No.: US10697461B2Publication Date: 2020-06-30
- Inventor: Oliver James Rudge
- Applicant: Edwards Limited
- Applicant Address: GB West Sussex
- Assignee: Edwards Limited
- Current Assignee: Edwards Limited
- Current Assignee Address: GB West Sussex
- Agency: Westman, Champlin & Koehler, P.A.
- Agent Theodore M. Magee
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2fe33d98
- International Application: PCT/GB2015/053778 WO 20151210
- International Announcement: WO2016/110666 WO 20160714
- Main IPC: F04D19/04
- IPC: F04D19/04 ; F04D29/059 ; F04D29/063 ; F16C33/66 ; F16C19/06 ; F04D29/42

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.
Public/Granted literature
- US20180023577A1 VACUUM PUMP LUBRICANT SUPPLY SYSTEMS Public/Granted day:2018-01-25
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