EP1197635A3
Gas turbine engine airfoil cooling
Abstract
Cooling air bled from the compressor section of a gas turbine engine is used to first cool the leading edge portion of the turbine blades and is then used to cool other portions of the turbine blades e.g. by film cooling.
Term
Term ended
Projected expiry passed 23 August 2021, 5.1 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| US4753575A | Cites | United States of America | A | Search report | 6-8,14,15 |
| US5246340A | Cites | United States of America | X | Search report | 1,4,5,7-12,14,15 |
| US5356265A | Cites | United States of America | X | Search report | 1,4,9-12 |
| US5387085A | Cites | United States of America | A | Search report | 4,5,10-15 |
| US5387086A | Cites | United States of America | X | Search report | 1-3,9 |
| US5403159A | Cites | United States of America | X | Search report | 1,4-9 |
| US5603606A | Cites | United States of America | DA | Search report | 1-15 |
| US6036441A | Cites | United States of America | X | Search report | 1,10,13 |
6 members in 3 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 689058 | United States of America | – | |
| 68905800 | United States of America | A | |
| 689058 | – | – | – |
| US20000689058 | – | – | – |
Members6
| Document | Office | Kind | |
|---|---|---|---|
| EP1197635A2 | European Patent Office (EPO) | A2 | |
| US6431832B1 | United States of America | B1 | |
| EP1197635A3This record | European Patent Office (EPO) | A3 | |
| EP1197635B1 | European Patent Office (EPO) | B1 | |
| DE60129281D1 | Germany | D1 | |
| DE60129281T2 | Germany | T2 |
27 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| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| 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 | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| 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 | |
| Corresponds to:REF | REF | EP | |
| 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)COOLED GAS TURBINE ENGINE AIRFOIL AND METHOD OF COOLING SUCH AN AIRFOILRTI1 | 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 patentAL;LT;LV;MK;RO;SIAX | 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
- 1197635
- Publication, DOCDB
- 1197635
- Publication, EPODOC
- EP1197635
- Application
- 1120250
- Application, DOCDB
- 01120250
- Application, EPODOC
- EP20010120250
Titles3
- German
- Turbinenschaufelkühlung
- English
- Gas turbine engine airfoil cooling
- French
- Refroidissement des aubes de turbine
Classification
- CPC, 1
- F01D5/187
- IPC, 1
- F01D5 18
Designated states2
- Contracting states, 1
- Türkiye
- Extension states, 1
- Slovenia