| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_257cb9ec5a3e8cc4abac869f4addc9b7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B43-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-32 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-3804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C3-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-02 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B43-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F17C3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B9-12 |
| filingDate |
2013-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01979e95e0fabe3b4e931bc90650c221
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e4e60e775db6f49aa897cba87a91a78 |
| publicationDate |
2021-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10942234-B2 |
| titleOfInvention |
Reduction of blockages in a cryogenic refrigeration system such as for magnetic resonance imaging systems |
| abstract |
A cryogenic refrigeration system is provided having particular application in cooling a Magnetic Resonance Imaging system. The cryogenic refrigeration system comprises a conduit arranged as a cooling circuit through which a coolant fluid is pumped, the conduit being in thermal communication with a least one cooled stage for cooling the coolant fluid to a first temperature, and wherein the conduit comprises a cryotrap in communication with the coolant fluid, the cryotrap being operable to remove contaminants from the coolant fluid by cryogenic pumping. The conduit further comprises a flow impedance for cooling the coolant fluid to a second temperature lower than the first temperature, and a hydrogen filter upstream of the flow impedance and in communication with the coolant fluid, the hydrogen filter being cooled to a temperature below the freezing point of hydrogen in the coolant fluid and operable to remove contaminant hydrogen from the coolant fluid. |
| priorityDate |
2012-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |