Wind turbine using chimney effect.
Abstract
Power plant and process for the generation of electric energy through forced wind power. The plant includes a self-standing vertical structure, anchored to the ground, featuring a suitable diameter and height. Through this structure a powerful airflow operates one or more wind generators which is/are located inside. The plant is provided with several air inlets at the bottom, and an outlet at the top for discharging the air and at least one wind generator interposed between the afore-mentioned inlet -outlet. The tangible difference in the air density and temperature between high and low altitude generates a positive air flow moving from the bottom to the top and operates the internal generators regardless from the presence of winds or air flows. Suitable heating devices are located at the chimney bottom and boost the natural draught effect. A microprocessor controls the heating means in order to achieve a constant temperature at the air inlet and consequently a constant speed and a constant electric output.

Term
Term ended
Projected expiry passed 14 April 2025, 1.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0196740A1 | Cites | World Intellectual Property Organization (WIPO) | XY | Search report | 1-4,7,9 |
| WO0214689A1 | Cites | World Intellectual Property Organization (WIPO) | XY | Search report | 1-3,5-9 |
| DE10102675A1 | Cites | Germany | X | Search report | 1,3 |
| DE19811310A1 | Cites | Germany | XY | Search report | 1,2,4-9 |
| US3936652A | Cites | United States of America | XY | Search report | 1,3,5,6,11 |
| US3979597A | Cites | United States of America | X | Search report | 1,3-9,12 |
| US4106295A | Cites | United States of America | X | Search report | 1-3,5,6,9 |
4 members in 3 offices; this record represents the family
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| PC20040016 | Italy | – | |
| PC20040016 | Italy | A |
Members4
| Document | Office | Kind | |
|---|---|---|---|
| ITPC20040016A1 | Italy | A1 | |
| EP1589221A2 | European Patent Office (EPO) | A2 | |
| US2006016182A1 | United States of America | A1 | |
| EP1589221A3This record | European Patent Office (EPO) | A3 |
14 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | EP | |
| Designated country de not longer valid8566 | 8566 | DE | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting states (corrected)RBV | RBV | EP | |
| Designation fees paidAKX | AKX | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | 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
- 1589221
- Application
- 50081504
Titles3
- German
- Windkraftanlage mit Kamineffekt
- English
- Wind turbine using chimney effect.
- French
- Eolienne à effet de cheminée
Classification
- CPC, 12
- F03D1/04
- F05B2240/131
- F05B2250/5011
- F05B2260/24
- F24S90/00
- Y02E10/728
- Y02E10/46
- Y02E10/72
- F03G6/045
- F03G6/127
- F03D9/37
- F03D9/007
- IPC, 2
- F03G6 04
- F03D1 04
Designated states36
- Contracting states, 30
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
and 6 moreShow fewer
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 6
- Albania
- Bosnia and Herzegovina
- Croatia
- Latvia
- North Macedonia
- Yugoslavia, later Serbia and Montenegro (until 2006)