Published January 27, 1976
| Version v1
Patent
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Ionization smoke detector
Creators
Description
An ionization smoke detector is described having two ionization chambers with one of said chambers having an electrode at least partially surrounded by a conductive mesh constituting an intermediate electrode and the other of said chambers being formed between the intermediate electrode and an outer surrounding electrode of conductive mesh and a radioactive source carried by said outer electrode. The volume defined by the outer and intermediate electrodes is greater than the volume defined by the intermediate electrode
Availability note (English)
MF available from INIS under the Report Number.Files
8290391.pdf
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Additional details
Additional titles
- Augmented title (English)
- Patent
Publishing Information
- Imprint Pagination
- 4 p.
- IPC:
- Int. Cl.H01j17/32.
- IPC
- Int. Cl.H01j17/32.
- Patent number
- US patent document 3,935,492
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 8290391
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Descriptors DEI
- ALARM SYSTEMS; IONIZATION CHAMBERS; RADIATION SOURCES; SMOKES; SPECIFICATIONS
- Descriptors DEC
- AEROSOLS; COLLOIDS; DISPERSIONS; MEASURING INSTRUMENTS; RADIATION DETECTORS; RESIDUES; SOLS