http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-548036-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e95f703843df4244ab7821f9214afde3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21G1-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21G1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M5-32 |
| filingDate | 1942-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1942-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-548036-A |
| titleOfInvention | Improvements in and relating to cannulae for hypodermic needles |
| abstract | 548,036. Alloys. BISHOP & CO. PLATINUM WORKS, J. March 27, 1942, No. 4088. Convention date, Feb. 27, 1941. [Class 82 (i)] [Also in Group XXII] A seamless hypodermic needle cannula is made of an alloy of platinum with about 8-20 per cent., particularly 11 per cent., of ruthenium. Either or both the platinum or ruthenium may be partly replaced by one or more of the metals palladium, iridium, and rhodium. The cannula is made by forming a tube, alternately swaging and annealing the tube over a mandrel, followed by alternate annealing and drawing with reduction of wall thickness, and finally sinking through a succession of dies to reduce the outside diameter to the required size. The initial seamless tube may be formed by rolling a sheet of the alloy'and fusing the edges together, or by deep drawing a sheet of the alloy, or by drilling a cylindrical ingot. |
| priorityDate | 1941-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.