Global Patent Index - EP 0815353 B1

EP 0815353 B1 2000-01-26 - WEAR RESISTANT GAS TURBINE ENGINE AIRSEAL ASSEMBLY

Title (en)

WEAR RESISTANT GAS TURBINE ENGINE AIRSEAL ASSEMBLY

Title (de)

ABRIEBFESTE LAGERUNG EINES DICHTRINGES IN EINER GASTURBINE

Title (fr)

ENSEMBLE DE JOINT D'ETANCHEITE A L'AIR RESISTANT A L'USURE POUR TURBINE A GAZ

Publication

EP 0815353 B1 (EN)

Application

EP 96909676 A

Priority

  • US 9603410 W
  • US 40422495 A

Abstract (en)

[origin: WO9628642A1] An airseal assembly (54) for a gas turbine engine (10) includes an airseal body (62) with a forward rail (68) and a ring rail (58). Both rails extend radially outward from the airseal body (62) and are spaced apart from each other by a plurality of spacers (60) to define a space therebetween. The airseal assembly (54) is segmented in at least two portions so that the forward rail (68) and the ring rail (58) are detached from each other. Each rail (68, 58) includes a contact surface (70, 80) that can be sprayed with wear resistant coating prior to assembly of the airseal in order to reduce wear on the forward rail (68) and the ring rail (58).

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

F01D 11/00; F01D 25/24

IPC 8 full level (invention and additional information)

F01D 9/04 (2006.01); F01D 11/00 (2006.01); F01D 25/24 (2006.01)

CPC (invention and additional information)

F01D 25/246 (2013.01); F01D 9/042 (2013.01); F01D 11/001 (2013.01); F05D 2230/642 (2013.01); F05D 2230/90 (2013.01)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9628642 A1 19960919; DE 69606392 D1 20000302; DE 69606392 T2 20000907; EP 0815353 A1 19980107; EP 0815353 B1 20000126; JP 3764168 B2 20060405; JP H11502006 A 19990216

INPADOC legal status


2014-01-31 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2014-01-09 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 69606392

- Effective date: 20131001

2013-12-27 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20131129

2013-11-27 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

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2012-06-29 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2002-12-18 [REG GB 728Y] APPLICATION FOR RESTORATION ALLOWED (SECT. 28/1977)

2001-12-28 [REG FR FC] FAVOURABLE DECISION OF INPI DIRECTOR GENERAL ON AN APPLICATION FOR RESTAURATION.

2001-11-14 [REG GB 728V] APPLICATION FOR RESTORATION FILED (SECT. 28/1977)

2001-10-26 [REG FR RN] APPLICATION FOR RESTORATION

2001-06-29 [REG FR ST] NOTIFICATION OF LAPSE

2001-01-10 [26N] NO OPPOSITION FILED

2000-12-13 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20000426

2000-03-02 [REF] CORRESPONDS TO:

- Document: DE 69606392 20000302

2000-02-25 [ET] FR: TRANSLATION FILED

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB

1999-03-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990203

1998-01-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19971013

1998-01-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB