Invention Grant
- Patent Title: Vacuum pump
- Patent Title (中): 真空泵
-
Application No.: US10572894Application Date: 2004-09-23
-
Publication No.: US08851865B2Publication Date: 2014-10-07
- Inventor: Ian David Stones , Nigel Paul Schofield , Martin Nicholas Stuart
- Applicant: Ian David Stones , Nigel Paul Schofield , Martin Nicholas Stuart
- 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
- International Application: PCT/GB2004/004110 WO 20040923
- International Announcement: WO2005/033520 WO 20050414
- Main IPC: F04D19/04
- IPC: F04D19/04 ; F04D19/02 ; H01J49/24 ; F04D23/00 ; F04D17/16
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
- US20080138219A1 Vacuum Pump Public/Granted day:2008-06-12
Information query
