Wrenching unit
Abstract
The present invention generally provides an apparatus for handling tubulars. In one aspect, the present invention provides a wrenching head (100) for supplying torque over a large step less clamping range for connecting tubulars. In one embodiment, the wrenching head includes hydraulic clamping cylinders guided by pendulum bolts (95). The pendulum bolts prevent the piston from twisting or bending under a high clamping force. In another embodiment, the present invention provides a wrenching head having adjustable jaw units. The jaw units comprise a shaft threadedly connected to a jaw body. The jaw body includes a gear profile formed on an outer surface. A turn ring having a gear profile for mating with the gear profiles of the jaw body may be rotated to cause all of the jaw units to adjust simultaneously. In another aspect, the present invention provides a suspension unit to couple a spinner to the wrenching unit.
Term
Term ended
Projected expiry passed 25 January 2025, 1.7 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0109479A1 | Cites | World Intellectual Property Organization (WIPO) | X | Search report | 1,2,4,7-13 |
| US2002189804A1 | Cites | United States of America | X | Search report | 1-13,15-26 |
| US5259275A | Cites | United States of America | A | Search report | 1-26 |
| US6138529A | Cites | United States of America | A | Search report | 1-13 |
4 members in 3 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 765567 | United States of America | – | |
| 76556704 | United States of America | A | |
| 765567 | – | – | – |
| US20040765567 | – | – | – |
Members4
| Document | Office | Kind | |
|---|---|---|---|
| CA2494598A1 | Canada | A1 | |
| US2005160880A1 | United States of America | A1 | |
| EP1559865A2 | European Patent Office (EPO) | A2 | |
| EP1559865A3This 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
- 1559865
- Publication, DOCDB
- 1559865
- Publication, EPODOC
- EP1559865
- Application
- 5001402
- Application, DOCDB
- 05001402
- Application, EPODOC
- EP20050001402
Titles3
- German
- Schraubzange
- English
- Wrenching unit
- French
- Clé pour tiges
Classification
- CPC, 3
- E21B19/163
- E21B19/164
- E21B19/168
- IPC, 1
- E21B19 16
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)