http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-772231-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d647e846645953f86e9ba89e7f5ead3d |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-09701 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J5-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L24-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01C7-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J5-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-04 |
| filingDate | 1952-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83b12b7a855da41ac7fa100eb877cf75 |
| publicationDate | 1957-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-772231-A |
| titleOfInvention | Improvements relating to hermetically sealed electric circuit elements |
| abstract | 772,231. Rectifiers; glass to metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 18, 1953 [Aug. 26, 1952], No. 21427/52. Classes 36 and 37. An electric circuit element such as a crystal diode or thermistor is enclosed in a glass tubular envelope, and the glass at the region where the final seal is made to a lead-in conductor, is thicker than the wall of the tube, so as to resist the expansive effect of the trapped air in the envelope. In Fig. 3, the lead-in wire 7 of electrode 6 is sealed in one end of a glass tube 1. Crystal 3 is supported on lead-in wire 5 which is surrounded by a thick glass tube portion 8. Heat is applied to seal tube 8 to tube 1, and wire 5 to tube 8. The additional strength provided by tube 8 prevents the glass, even when plastic, from being deformed by the pressure due to expansion of the air in the cavity. To avoid heat damage to the crystal, the lead-in wires may consist of a low heat conductivity alloy such as iron-nickel cobalt, or iron-nickel, which may be partly copper coated, and borated or glass covered to aid sealing. A getter may be included in the assembly. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3325586-A |
| priorityDate | 1952-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.