EP1512926A3
Expansion device
Abstract
An expansion device 1 allows to cancel part of the refrigerant pressure by a pressure-cancelling structure. Due to the pressure on a valve-closing pressure-receiving surface 27, the elastic force of a spring 18 is reduced. The spring 18 has a small size. The expansion device 1 is compact. When a differential pressure is equal or higher than a predetermined value, a relief mechanism relieves refrigerant from the upstream side through a valve element 20 into a separate passage, to prevent an abnormal inside pressure rise.

Term
Term ended
Projected expiry passed 7 September 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 |
|---|---|---|---|---|---|
| EP1167899A2 | Cites | European Patent Office (EPO) | XY | Search report | 1-4,17,25,32 |
| JPH11257802A | Cites | Japan | XY | Search report | 1-4,27,29,32 |
| JPS54102627A | Cites | Japan | X | Search report | 1-4,32,38 |
| JPS54105327A | Cites | Japan | X | Search report | 1-4,32 |
| JPS55165460A | Cites | Japan | XY | Search report | 1-4,32,38 |
4 members in 3 offices
Priority claims8
| Document | Office | Kind | Date |
|---|---|---|---|
| 2003315493 | Japan | A | |
| 2003315493 | Japan | – | |
| 2004070947 | Japan | A | |
| 2004070947 | Japan | – | |
| 2003315493 | – | – | – |
| 2004070947 | – | – | – |
| JP20030315493 | – | – | – |
| JP20040070947 | – | – | – |
Members4
| Document | Office | Kind | |
|---|---|---|---|
| EP1512926A2 | European Patent Office (EPO) | A2 | |
| US2005050916A1 | United States of America | A1 | |
| JP2005106452A | Japan | A | |
| EP1512926A3This record | European Patent Office (EPO) | A3 |
11 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Designation fees paidAKX | AKX | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1512926
- Publication, DOCDB
- 1512926
- Publication, EPODOC
- EP1512926
- Application
- 4021240
- Application, DOCDB
- 04021240
- Application, EPODOC
- EP20040021240
Titles3
- German
- Entspannungsvorrichtung
- English
- Expansion device
- French
- Dispositif détendeur
Classification
- CPC, 2
- F25B41/062
- F25B2341/062
- IPC, 2
- B60H1 32
- F25B41 06
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