http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-612168-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73e9586003f36986b368de1b1ef2cc68 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01H29-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01H29-28 |
| filingDate | 1946-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1948-11-09^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-612168-A |
| titleOfInvention | Improvements in or relating to time operated switches |
| abstract | 612,168. Switching systems for resistance heaters. BADER, K. E. May 14, 1946, No. 14583. [Class 38 (iv)] [Also in Groups XXXVI and XXXVII] A switch operated by thermal expansion of a gas in which the time of operation may be selectively determined (see Group XXXVII) may be used for wattage-control of an oven or the like. A differential gas-pressure, mercury U-tube switch, Fig. 10, is connected in series with its heater-filament and an external load 25. The heater-filament is shunted by a variable resistance 22 to vary the time of operation of the switch, and hence the average power supplied to the load. Alternatively, the U-tube switch may have normally open contacts, Fig. 11, and a high-voltage heater 26 is situated in the left-hand limb 1, and energized over an auxiliary contact 27 which opens when the main circuit through electrodes 8, 9 is closed. A resistor 85 in series with the heater filament controls the time of operation. |
| priorityDate | 1946-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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