Invention Grant
- Patent Title: Vacuum pump
- Patent Title (中): 真空泵
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Application No.: US14471698Application Date: 2014-08-28
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Publication No.: US09249805B2Publication Date: 2016-02-02
- Inventor: Ian David Stones , Nigel Paul Schofield , Martin Nicholas Stuart
- Applicant: Edwards Limited
- Applicant Address: GB Crawley, West Sussex
- Assignee: Edwards Limited
- Current Assignee: Edwards Limited
- Current Assignee Address: GB Crawley, West Sussex
- Agency: Westman, Champlin & Koehler, P.A.
- Priority: GB0322888.9 20030930; GB0409139.3 20040423
- Main IPC: F04D19/04
- IPC: F04D19/04 ; F04D17/16 ; F04D23/00 ; H01J49/24
Abstract:
A vacuum pump comprises a molecular drag pumping mechanism and a regenerative pumping mechanism. A rotor element of the molecular drag pumping mechanism surrounds rotor elements of the regenerative pumping mechanism.
Public/Granted literature
- US20140369807A1 Vacuum Pump Public/Granted day:2014-12-18
Information query
