Global patent index - EP 1087145 A3

EP 1087145 A3 2001-04-18 - Centrifugal pump

Title (en)

Centrifugal pump

Title (de)

Kreiselpumpe

Title (fr)

Pompe centrifuge

Publication

EP 1087145 A3 (EN)

Application

EP 00308247 A

Priority

US 40518499 A

Abstract (en)

[origin: EP1087145A2] A centrifugal pump has one or more pumping stages within a pump body. A drive shaft 18 drives an impeller 26 having a central portion 30 and an outer periphery 32. Rotor vanes 34 radiate from the central portion 30 to urge a fluid to be pumped radially outwards. A shroud 38 is connected to the impeller 26 for rotation therewith. The shroud 38 has an outer peripheral portion 40 extending beyond the outer circular periphery 32 of the impeller 26 in overlapping relationship and is configured to deflect the fluid towards an outlet 24. A diffuser 20 is located opposite to the impeller 26 and has a stator assembly including passages 46 configured to direct the fluid from the outer peripheral portion of the shroud 40 towards the outlet 24. <IMAGE>

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

F04D 29/22; F04D 29/44

IPC 8 full level (invention and additional information)

F04D 1/06 (2006.01); F04D 29/22 (2006.01); F04D 29/44 (2006.01)

CPC (invention and additional information)

F04D 29/2255 (2013.01); F04D 1/06 (2013.01); F04D 29/445 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1087145 A2 20010328; EP 1087145 A3 20010418

INPADOC legal status

2002-09-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011019

2002-02-28 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

- Ref Legal Event Code: 8566

2002-01-09 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2001-04-18 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2001-04-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2001-03-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI