Global Patent Index - EP 1242742 A1

EP 1242742 A1 2002-09-25 - COOLED SCREW VACUUM PUMP

Title (en)

COOLED SCREW VACUUM PUMP

Title (de)

GEKÜHLTE SCHRAUBENVAKUUMPUMPE

Title (fr)

POMPE A VIDE A VIS REFROIDIE

Publication

EP 1242742 A1 (DE)

Application

EP 00983238 A

Priority

  • DE 19963171 A
  • EP 0012318 W

Abstract (en)

[origin: DE19963171A1] The screw-type vacuum pump has two shafts each carrying a rotor(4) with a hollow chamber(31) and provided with open bores(41) open to the pressure side and in which are located guide components(44) which serve for the separate guiding of inflowing and outflowing cooling medium. The axially orientated inlet and/or outlet lines are formed as central or non-central bores, as longitudinal slot sections on the sides or as outer annular gaps in the guide component.

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

F04C 18/16; F04C 29/04

IPC 8 full level (invention and additional information)

F04C 18/16 (2006.01); F04C 25/02 (2006.01); F04C 29/00 (2006.01); F04C 29/04 (2006.01)

CPC (invention and additional information)

F04C 29/04 (2013.01); F04C 18/16 (2013.01)

Citation (search report)

See references of WO 0148383A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19963171 A1 20010628; DE 50013338 D1 20060928; EP 1242742 A1 20020925; EP 1242742 B1 20060816; JP 2003518588 A 20030610; JP 4800542 B2 20111026; US 2005069446 A1 20050331; WO 0148383 A1 20010705

INPADOC legal status


2013-04-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2012-10-11 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 50013338

- Effective date: 20120703

2012-09-07 [REG FR ST] NOTIFICATION OF LAPSE

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2012-08-29 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

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2007-07-25 [26N] NO OPPOSITION FILED

- Effective date: 20070518

2007-03-02 [ET] FR: TRANSLATION FILED

2006-11-29 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20061108

2006-09-28 [REF] CORRESPONDS TO:

- Document: DE 50013338 P 20060928

2006-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT

2006-08-16 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2005-12-28 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB IT

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

- Owner name: LEYBOLD VACUUM GMBH

2004-06-23 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040506

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

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

2002-09-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020610

2002-09-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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