EP1522677A3
Blade damper
Abstract
A turbomachine blade damper has a damper member (52) with first and second (58,60) damping surfaces for respectively engaging first and second surfaces of adjacent first and second blades (20). The damper has a seal (70) having a first portion (22) engaged in the damper member (58) to resist relative movement of the seal in at least one direction and a second portion (74) engaging at least one of the blades and advantageously forming a seal to resist upstream gas infiltration.
Term
Term ended
Projected expiry passed 4 October 2024, 2 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| GB2111130A | Cites | United Kingdom | X | Search report | 1-3,5,7,8,11,12 |
| US3887298A | Cites | United States of America | XA | Search report | 1,2,4,6,8,11,12 |
| US5228835A | Cites | United States of America | X | Search report | 1-12 |
| US5573375A | Cites | United States of America | X | Search report | 1-7,9-12 |
| US5827047A | Cites | United States of America | X | Search report | 1-3,5-8,11,12 |
12 members in 6 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 681957 | United States of America | – | |
| 68195703 | United States of America | A | |
| 681957 | – | – | – |
| US20030681957 | – | – | – |
Members12
| Document | Office | Kind | |
|---|---|---|---|
| CA2483071A1 | Canada | A1 | |
| NO20044251L | Norway | L | |
| EP1522677A2 | European Patent Office (EPO) | A2 | |
| US2005079062A1 | United States of America | A1 | |
| AU2004214543A1 | Australia | A1 | |
| JP2005113916A | Japan | A | |
| US6932575B2 | United States of America | B2 | |
| EP1522677A3This record | European Patent Office (EPO) | A3 | |
| EP2366872A2 | European Patent Office (EPO) | A2 | |
| EP2366872A3 | European Patent Office (EPO) | A3 | |
| EP1522677B1 | European Patent Office (EPO) | B1 | |
| EP2366872B1 | European Patent Office (EPO) | B1 |
26 legal events, as 3 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Title (correction)TURBOMACHINE BLADE DAMPER ASSEMBLYRTI1 | RTI1 | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designation fees paidAKX | AKX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1522677
- Publication, DOCDB
- 1522677
- Publication, EPODOC
- EP1522677
- Application
- 4256127
- Application, DOCDB
- 04256127
- Application, EPODOC
- EP20040256127
Titles3
- German
- Dämpferelement für Turbomschinenschaufeln
- English
- Blade damper
- French
- Elément amortisseur pour aubes de turbomachines
Classification
- CPC, 5
- F01D11/008
- F01D5/22
- F05D2230/60
- F05D2260/30
- Y10S416/50
- IPC, 5
- F01D5 22
- F01D5 26
- F01D11 00
- F04D29 08
- F04D29 38
Designated states33
- Contracting states, 28
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
- Portugal
- Romania
and 4 moreShow fewer
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 5
- Albania
- Croatia
- Lithuania
- Latvia
- North Macedonia