| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc365d0d4cf537a503859144cd924ad6 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D25-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D25-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D63-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D25-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D63-10 |
| filingDate |
1971-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1973-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7210f527ee6496f84789cabf0fac8241 |
| publicationDate |
1973-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3726407-A |
| titleOfInvention |
Multi-stage spiral-wound filter |
| abstract |
A multi-stage filter formed by spirally winding a multi-layer material around a core to form a generally cylindrical construction having two opposing spiral end surfaces. The multilayer material is formed by at least one filter layer, and at least two spacer layers formed from a material with a high void volume. The layers are arranged so that during use, and in each stage, unfiltered fluid in each layer passing through one spiral surface into one spacer layer must pass through a filter layer prior to passing out of the construction through the opposing spiral end surface. Fluid in each stage passes through the filter in an opposite axial direction than the fluid passing through the filter in adjacent stages. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102008020478-B4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009266756-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4857192-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4294594-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10226742-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5516689-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8809693-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4824564-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-614296-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4990248-A |
| priorityDate |
1971-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |