| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_260220c525b214105ee48ee2d77a5bf4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T137-7903 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16K15-03 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16K15-03 |
| filingDate |
1991-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d65399057b679bdc6cb5f908652d633 |
| publicationDate |
1991-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5056557-A |
| titleOfInvention |
Butterfly-type check valve |
| abstract |
The invention is a butterfly-type check valve (8) wherein the valve plate (18) moves translationally relative to a pivot axis (90) and incident to its own rotational movement. The invention employs biasing means (102, 104, 108) for initiating movement of the valve plate when the latter is at a closed rotational position, thereby eliminating the need for a pilot valve. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7325569-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5788220-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006237680-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6206612-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102004012507-A1 |
| priorityDate |
1991-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |