Global Patent Index - EP 1234982 A1

EP 1234982 A1 2002-08-28 - Vacuum pump

Title (en)

Vacuum pump

Title (de)

Vakuumpumpe

Title (fr)

Pompe à vide

Publication

EP 1234982 A1 (EN)

Application

EP 01830121 A

Priority

EP 01830121 A

Abstract (en)

A turbomolecular vacuum pump (5) comprises a first pumping section (1) having pumping stages with bladed rotor discs, a second pumping section (2) having pumping stages with smooth rotor discs, a third pumping section (3) having a pumping stage with a toothed rotor disc (26), and a fourth pumping section (4) of the ejector or venturi pump type. <IMAGE>

IPC 1-7 (main, further and additional classification)

F04D 19/04; F04D 25/16; F04F 5/20

IPC 8 full level (invention and additional information)

F04D 19/04 (2006.01); F04D 25/16 (2006.01); F04F 5/04 (2006.01)

CPC (invention and additional information)

F04D 25/16 (2013.01); F04D 19/046 (2013.01); F04F 5/04 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family

EP 1234982 A1 20020828; EP 1234982 B1 20031203; DE 60101368 D1 20040115; DE 60101368 T2 20041014