| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_df88116852c7a0dab9c487fab1187377
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e6ea6cb43835bc47fec0397d8561a592
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9de4d42dca6f2e51f49e0df131a0bd0d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B19-163 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B19-16 |
| filingDate |
1998-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cd1ee29e43561c8a97117852f9c73cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f2146865e84efa34fcc691b5c4651f4 |
| publicationDate |
1999-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9910130-A1 |
| titleOfInvention |
Duplex drill pipe wrench |
| abstract |
A duplex drill pipe wrench (10) is used to provide the torque wrench function to both make up/break out pipe stands and to service drill string. While serving to make up and break out pipe stands, the wrench (10) is positioned over and used in conjunction with a powered mousehole (32) or kelly spinner. When servicing drill string, the wrench (10) is positioned over the drill bore rotary table. The present apparatus allows the rapid make up of pipe stands having individually torqued connections and reduces the need for tongs and spin chains to handle drill pipe. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108798560-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007100259-A1 |
| priorityDate |
1997-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |