Global Patent Index - EP 0826883 B1

EP 0826883 B1 2001-05-09 - Rotary piston pump

Title (en)

Rotary piston pump

Title (de)

Rotationskolbenpumpe

Title (fr)

Pompe à piston rotatif

Publication

EP 0826883 B1 (DE)

Application

EP 97114889 A

Priority

  • DE 19635540 A
  • DE 19645501 A

Abstract (en)

[origin: EP0826883A2] The pump has a housing (17) with rotary piston (1) and rotary cylinder (2). Piston or cylinder is driven from outside the housing, and the piston drives the cylinder, or vice versa. A sector-shaped segment on the cylinder circumference extends so far in circumferential direction of the cylindrical housing chamber (10), that the intake and discharge channels (8,9) can be closed simultaneously by the rotary piston. The cylinder is guided in grooves (15) or bushes, or on rails etc. in the side walls (6) of the housing chamber.

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

F04C 2/344

IPC 8 full level (invention and additional information)

F04C 2/352 (2006.01)

CPC (invention and additional information)

F04C 2/352 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

EP 0826883 A2 19980304; EP 0826883 A3 19980318; EP 0826883 B1 20010509; DE 19730988 A1 19980312

INPADOC legal status


2010-01-29 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Effective date: 20090929

2008-10-31 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Payment date: 20080831

- Year of fee payment: 12

2002-05-02 [26N] NO OPPOSITION FILED

2002-04-15 [REG CH PL] PATENT CEASED

2002-03-01 [PG25 MC] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2002-02-28 [BERE] BE: LAPSED

- Owner name: FRIEDRICH WERNER E.

- Effective date: 20010831

2002-02-20 [REG IE FD4D] EUROPEAN PATENTS DESIGNATING IRELAND TREATED AS ALWAYS HAVING BEEN VOID

2001-12-21 [EN] FR: TRANSLATION NOT FILED

2001-11-30 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2001-11-07 [GBV] GB: EP PATENT (UK) TREATED AS ALWAYS HAVING BEEN VOID IN ACCORDANCE WITH GB SECTION 77(7)/1977

- Effective date: 20010509

2001-10-01 [NLV1] NL: LAPSED OR ANNULLED DUE TO FAILURE TO FULFILL THE REQUIREMENTS OF ART. 29P AND 29M OF THE PATENTS ACT

2001-08-31 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2001-06-13 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

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2001-06-13 [REF] CORRESPONDS TO:

- Document: DE 59703496 20010613

2001-05-15 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

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

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2001-05-09 [REF] CORRESPONDS TO:

- Document: AT 201088 T 20010515

1998-12-02 [AKX] PAYMENT OF DESIGNATION FEES

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1998-12-02 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

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1998-10-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19980901

1998-03-18 [AK] DESIGNATED CONTRACTING STATES:

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1998-03-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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1998-03-04 [17P] REQUEST FOR EXAMINATION FILED

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