| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_49fec2576020fadf9aa6bf6a0624247d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_92012bb59e226d1e9a3d99e9a831218b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bfaa641db13bdf24c0670ae29dbe5a3a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-1212
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-1208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-12 |
| filingDate |
2015-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_328ea6c9e1436e70da49ffd129895804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11198fe71dd303fa51dc83f94c15a511
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15b54f20f49995f38d7ec12e5d5a01d3 |
| publicationDate |
2017-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9840887-B2 |
| titleOfInvention |
Wear-resistant and self-lubricant bore receptacle packoff tool |
| abstract |
A packoff assembly comprises: a tubing connectable mandrel; and at least one packoff element disposed on the mandrel; the packoff element comprising an annular seal comprising a carbon composite and having an inner surface and an opposing outer surface; the inner surface being in contact with a surface of the mandrel; a wear-resistant member at least partially encapsulating the seal; an annular guide member disposed on the mandrel; and a retainer member disposed between the guide member and the mandrel for securing the guide member to a predetermined position on the mandrel. |
| priorityDate |
2015-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |