JPS4940290Y1 - - Google Patents
Info
- Publication number
- JPS4940290Y1 JPS4940290Y1 JP1970114352U JP11435270U JPS4940290Y1 JP S4940290 Y1 JPS4940290 Y1 JP S4940290Y1 JP 1970114352 U JP1970114352 U JP 1970114352U JP 11435270 U JP11435270 U JP 11435270U JP S4940290 Y1 JPS4940290 Y1 JP S4940290Y1
- Authority
- JP
- Japan
- 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
Classifications
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/12—Provision for actuation of an alarm
- G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
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- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Emergency Management (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Business, Economics & Management (AREA)
- High Energy & Nuclear Physics (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1970114352U JPS4940290Y1 (de) | 1970-11-19 | 1970-11-19 | |
| US00193901A US3792279A (en) | 1970-11-19 | 1971-10-29 | Ionization smoke detector |
| GB51955/71A GB1300909A (en) | 1970-11-19 | 1971-11-09 | Ionization smoke detector |
| FR7140733A FR2116395B1 (de) | 1970-11-19 | 1971-11-15 | |
| DE19712156906D DE2156906B1 (de) | 1970-11-19 | 1971-11-16 | Ionisations-Rauchmelder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1970114352U JPS4940290Y1 (de) | 1970-11-19 | 1970-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4940290Y1 true JPS4940290Y1 (de) | 1974-11-05 |
Family
ID=14635583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1970114352U Expired JPS4940290Y1 (de) | 1970-11-19 | 1970-11-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3792279A (de) |
| JP (1) | JPS4940290Y1 (de) |
| DE (1) | DE2156906B1 (de) |
| FR (1) | FR2116395B1 (de) |
| GB (1) | GB1300909A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223303A (en) * | 1978-12-11 | 1980-09-16 | General Electric Company | Alarm devices for interconnected multi-device systems |
| US4401979A (en) * | 1981-02-11 | 1983-08-30 | General Signal Corporation | Electrical controls for ionization smoke detector |
| CN103680042A (zh) * | 2013-11-30 | 2014-03-26 | 成都国科海博信息技术股份有限公司 | 火灾报警装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3089968A (en) * | 1961-06-22 | 1963-05-14 | Gen Precision Inc | Non-linear amplifier |
| US3435257A (en) * | 1965-05-17 | 1969-03-25 | Burroughs Corp | Threshold biased control circuit for trailing edge triggered flip-flops |
| US3395265A (en) * | 1965-07-26 | 1968-07-30 | Teledyne Inc | Temperature controlled microcircuit |
| CH468683A (de) * | 1966-12-29 | 1969-02-15 | Cerberus Ag Werk Fuer Elektron | Feuermelder mit einer elektrischen Rückkopplungsanordnung |
| US3539831A (en) * | 1967-06-15 | 1970-11-10 | Tektronix Inc | Switching circuit including plural ranks of differential circuits |
-
1970
- 1970-11-19 JP JP1970114352U patent/JPS4940290Y1/ja not_active Expired
-
1971
- 1971-10-29 US US00193901A patent/US3792279A/en not_active Expired - Lifetime
- 1971-11-09 GB GB51955/71A patent/GB1300909A/en not_active Expired
- 1971-11-15 FR FR7140733A patent/FR2116395B1/fr not_active Expired
- 1971-11-16 DE DE19712156906D patent/DE2156906B1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2116395B1 (de) | 1975-07-18 |
| GB1300909A (en) | 1972-12-29 |
| DE2156906B1 (de) | 1972-05-25 |
| FR2116395A1 (de) | 1972-07-13 |
| US3792279A (en) | 1974-02-12 |