CH512121A - Ionisations-Rauchmelder - Google Patents
Ionisations-RauchmelderInfo
- Publication number
- CH512121A CH512121A CH1067369A CH1067369A CH512121A CH 512121 A CH512121 A CH 512121A CH 1067369 A CH1067369 A CH 1067369A CH 1067369 A CH1067369 A CH 1067369A CH 512121 A CH512121 A CH 512121A
- Authority
- CH
- Switzerland
- Prior art keywords
- smoke detector
- ionization smoke
- ionization
- detector
- smoke
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Elimination Of Static Electricity (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5851868 | 1968-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH512121A true CH512121A (de) | 1971-08-31 |
Family
ID=13086634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1067369A CH512121A (de) | 1968-07-11 | 1969-07-11 | Ionisations-Rauchmelder |
Country Status (6)
Country | Link |
---|---|
US (1) | US3662177A (de) |
BE (1) | BE735386A (de) |
CH (1) | CH512121A (de) |
DE (1) | DE1933938B2 (de) |
GB (1) | GB1277091A (de) |
NL (1) | NL6910256A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH551057A (de) * | 1973-04-17 | 1974-06-28 | Cerberus Ag | Ionisationsfeuermelder. |
US3935465A (en) * | 1973-04-24 | 1976-01-27 | Geba-Gesellschaft Fuer Elektronische Brandmeldeanlagen Mbh | Ionization analyzing air pollution, smoke and fire alarm device |
JPS5538607B2 (de) * | 1973-11-06 | 1980-10-06 | ||
CA1267735A (en) * | 1986-01-17 | 1990-04-10 | Nohmi Bosai Kogyo Co., Ltd. | Ionization type-smoke detector |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447137A (en) * | 1965-05-13 | 1969-05-27 | Bunker Ramo | Digital memory apparatus |
JPS446089Y1 (de) * | 1966-03-30 | 1969-03-05 | ||
US3514603A (en) * | 1966-12-22 | 1970-05-26 | Johnson Service Co | Ionization chamber detection apparatus having a low voltage source means |
-
1969
- 1969-06-03 GB GB28085/69A patent/GB1277091A/en not_active Expired
- 1969-06-05 US US830817A patent/US3662177A/en not_active Expired - Lifetime
- 1969-06-30 BE BE735386D patent/BE735386A/xx unknown
- 1969-07-03 NL NL6910256A patent/NL6910256A/xx unknown
- 1969-07-04 DE DE19691933938 patent/DE1933938B2/de not_active Withdrawn
- 1969-07-11 CH CH1067369A patent/CH512121A/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BE735386A (de) | 1969-12-01 |
DE1933938B2 (de) | 1971-07-22 |
US3662177A (en) | 1972-05-09 |
NL6910256A (de) | 1970-01-13 |
GB1277091A (en) | 1972-06-07 |
DE1933938A1 (de) | 1970-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |