ES424010A1 - Improvements in ionization fire warning appliances. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements in ionization fire warning appliances. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES424010A1 ES424010A1 ES424010A ES424010A ES424010A1 ES 424010 A1 ES424010 A1 ES 424010A1 ES 424010 A ES424010 A ES 424010A ES 424010 A ES424010 A ES 424010A ES 424010 A1 ES424010 A1 ES 424010A1
- Authority
- ES
- Spain
- Prior art keywords
- cover
- housing wall
- ionization
- electrodes
- translation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Measurement Of Radiation (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Improvements in fire warning devices by ionization, of the class of which comprise an ionization measuring chamber, provided with a tubular housing wall and electrodes essentially mutually parallel and perpendicular to the axis of said wall, on which a potential is applied electrical, and at least one radioactive source that generates an ionization current between the electrodes, in which the tubular housing wall slices the electrodes in the axial direction and has at one end a cover that allows the entry of ambient air into the the measuring chamber is fixed by its edge in said housing wall and is axially separated from the neighbor electrode, characterized in that it constitutes the electrode adjacent to the cover by an electrode plate impermeable to air, which is arranged at a distance from the cover, as well as between the entire contour of its edge and the housing wall annuls r, such that it is smaller than the dimensions measured in the plane of the plate, the cover being constituted by an air-impermeable ring and provided with a central opening, the size and conformation of this opening being at least approximately equal to those of the electrode plate next to the cover. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2320604 | 1973-04-24 | ||
DE2403418A DE2403418B1 (en) | 1974-01-24 | 1974-01-24 | ionization fire detectors |
Publications (1)
Publication Number | Publication Date |
---|---|
ES424010A1 true ES424010A1 (en) | 1976-05-01 |
Family
ID=25765031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES424010A Expired ES424010A1 (en) | 1973-04-24 | 1974-03-07 | Improvements in ionization fire warning appliances. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES424010A1 (en) |
-
1974
- 1974-03-07 ES ES424010A patent/ES424010A1/en not_active Expired
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