http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0030621-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G08B17-11 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G08B17-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G08B17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-64 |
| filingDate | 1980-11-10^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1985-01-16^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1985-01-16^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0030621-B1 |
| titleOfInvention | Ionisation smoke signaller with particular operational reliability |
| abstract | An ionization smoke detector containing at least one ionization chamber operated at an extra low voltage or potential. The ionization chamber contains a sensor employing a measuring electrode and a counter electrode. Ambient air has practically free access to the ionization chamber and there are provided one or more radioactive sources for generating ions, a supply voltage source and an electrical circuit for triggering an alarm. The smoke detector possesses increased operational reliability since circuit elements are provided which enable signal reporting to a central station by means of a low-voltage of about 200 volts, however the sensor is operated at an extra low voltage. |
| priorityDate | 1979-12-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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