Global Patent Index - EP 1320684 A1

EP 1320684 A1 2003-06-25 - PUMP EMBODIED AS A SIDE CHANNEL PUMP

Title (en)

PUMP EMBODIED AS A SIDE CHANNEL PUMP

Title (de)

PUMPE ALS SEITENKANALPUMPE

Title (fr)

POMPE REALISEE EN TANT QUE POMPE A CANAL LATERAL

Publication

EP 1320684 A1 (DE)

Application

EP 01969795 A

Priority

  • DE 10048695 A
  • EP 0111260 W

Abstract (en)

[origin: DE10048695A1] The pump has a driven rotor (16) and a stator (14). A circumferential pump channel (22) formed in the rotor and defined by the stator contains the side channel and runs in a spiral coil round the rotor, i.e. more than one winding. A channel wall which defines the sides of the pump channel projects away from the rotor and runs in a coil whilst the stator has a smooth surface in the region of the pump channel.

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

F04D 19/04; F04D 17/16; F04D 23/00

IPC 8 full level (invention and additional information)

F04D 5/00 (2006.01); F04D 17/16 (2006.01); F04D 19/04 (2006.01); F04D 23/00 (2006.01); F04D 29/22 (2006.01); F04D 29/24 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01); F04D 29/58 (2006.01)

CPC (invention and additional information)

F04D 19/044 (2013.01); F04D 17/168 (2013.01); F04D 23/008 (2013.01)

Citation (search report)

See references of WO 0231360A1

Designated contracting state (EPC)

CH DE FR GB IT LI

EPO simple patent family

DE 10048695 A1 20020411; EP 1320684 A1 20030625; JP 2004511705 A 20040415; JP 4898076 B2 20120314; US 2003185667 A1 20031002; US 7090460 B2 20060815; WO 0231360 A1 20020418

INPADOC legal status


2007-03-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060915

2004-10-13 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: LEYBOLD VACUUM GMBH

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): CH DE FR GB IT LI

2003-06-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030314

2003-06-25 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL LT LV MK RO SI