Global Patent Index - EP 1240433 A1

EP 1240433 A1 2002-09-18 - Dry compressing vacuum pump having a gas ballast device

Title (en)

Dry compressing vacuum pump having a gas ballast device

Title (de)

Trockenverdichtende Vakuumpumpe mit Gasballasteinrichtung

Title (fr)

Pompe à vide à compression sèche comportant un dispositif de ballast à gaz

Publication

EP 1240433 A1 (DE)

Application

EP 00951529 A

Priority

  • DE 19962445 A
  • EP 0008201 W

Abstract (en)

[origin: WO0146592A1] The invention relates to a dry compressing vacuum pump (1) having a continuous or graduated inner compression and comprising a gas ballast device (8) having an isolating valve (11); the gas ballast device (8) also comprises a non-return valve (12), which prevents the escape of gases from the pump (1) through the gas ballast device (8) to the outside.

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

F04C 29/10; F04B 25/00; F04B 37/14; F04B 37/20

IPC 8 full level (invention and additional information)

F04C 18/16 (2006.01); F04C 25/02 (2006.01); F04B 25/00 (2006.01); F04B 37/14 (2006.01); F04B 37/20 (2006.01); F04C 25/00 (2006.01); F04C 28/28 (2006.01)

CPC (invention and additional information)

F04C 28/28 (2013.01); F04B 25/005 (2013.01); F04B 37/14 (2013.01); F04B 37/20 (2013.01); F04C 18/16 (2013.01); F04C 2220/12 (2013.01); F04C 2220/50 (2013.01)

Citation (search report)

See references of WO 0146592A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 0146592 A1 20010628; AU 6443100 A 20010703; DE 19962445 A1 20010628; DE 50013201 D1 20060831; EP 1240433 A1 20020918; EP 1240433 B1 20060719; JP 2003518228 A 20030603; TW 482875 B 20020411; US 6776588 B1 20040817

INPADOC legal status


2011-09-30 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Payment date: 20090914

- Year of fee payment: 10

2011-08-31 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2011-07-29 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

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2011-07-29 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20100831

2011-06-22 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 50013201

- Effective date: 20110301

2011-05-31 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20100823

2011-05-20 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20110502

2011-04-27 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20100823

2010-04-30 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Payment date: 20090821

- Year of fee payment: 10

2009-11-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Payment date: 20090821

- Year of fee payment: 10

2009-11-30 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Payment date: 20090827

- Year of fee payment: 10

2007-06-27 [26N] NO OPPOSITION FILED

- Effective date: 20070420

2007-02-16 [ET] FR: TRANSLATION FILED

2006-10-25 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20060928

2006-08-31 [REF] CORRESPONDS TO:

- Document: DE 50013201 P 20060831

2006-07-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT

2006-07-19 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2006-04-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04C 25/02 20060101AFI20060217BHEP

2006-04-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04C 25/00 20060101ALI20060217BHEP

2006-04-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04B 37/14 20060101ALI20060217BHEP

2006-04-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04B 37/20 20060101ALI20060217BHEP

2006-04-05 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE FR GB IT

2005-06-01 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050419

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

- Owner name: LEYBOLD VACUUM GMBH

2004-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

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

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020504

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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