BE718911A - - Google Patents
Info
- Publication number
- BE718911A BE718911A BE718911DA BE718911A BE 718911 A BE718911 A BE 718911A BE 718911D A BE718911D A BE 718911DA BE 718911 A BE718911 A BE 718911A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
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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
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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
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Prostheses (AREA)
- Fire-Detection Mechanisms (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65782667A | 1967-08-02 | 1967-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE718911A true BE718911A (de) | 1969-01-16 |
Family
ID=24638799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE718911D BE718911A (de) | 1967-08-02 | 1968-08-01 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3560737A (de) |
| BE (1) | BE718911A (de) |
| DE (1) | DE1773949A1 (de) |
| FR (1) | FR1575343A (de) |
| GB (1) | GB1228800A (de) |
| NL (1) | NL6810468A (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH475614A (de) * | 1968-06-18 | 1969-07-15 | Cerberus Ag Werke Fuer Elektro | Ionisationsfeuermelder |
| NL6918515A (de) * | 1968-12-24 | 1970-06-26 | ||
| CH508251A (de) * | 1970-07-23 | 1971-05-31 | 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 |
| GB1469570A (en) * | 1974-10-22 | 1977-04-06 | Lovelock J | Ionisation detectors |
| US4044263A (en) * | 1975-01-28 | 1977-08-23 | Walter Kidde & Company, Inc. | Ionization dual-zone static detector having single radioactive source |
| US4021671A (en) * | 1975-07-07 | 1977-05-03 | Gulf & Western Manufacturing Company (Systems) | Ionization detector |
| US4185197A (en) * | 1978-01-13 | 1980-01-22 | General Electric Company | Arrangement for inhibiting the effect of extraneous electric fields on an improved ionization smoke detector |
| FR2438841A1 (fr) * | 1978-10-13 | 1980-05-09 | Commissariat Energie Atomique | Capteur ionique pour detecteur d'incendie |
| JPS6044194U (ja) * | 1983-09-05 | 1985-03-28 | 能美防災工業株式会社 | イオン化式煙感知器の耐熱ケ−ス |
| GB2182198B (en) * | 1985-10-31 | 1991-05-15 | Gent Ltd | Ionisation detection chamber |
| FR2594953B1 (fr) * | 1986-02-25 | 1989-05-05 | Lewiner Jacques | Detecteur de fumee a chambre d'ionisation |
| US7456411B2 (en) * | 2006-07-06 | 2008-11-25 | General Electric Company | He-3 neutron proportional counter with internal leakage detection and related method |
| US20080210839A1 (en) * | 2006-11-15 | 2008-09-04 | Klapp Charles R | Smoke detector recessed box |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2908819A (en) * | 1955-06-13 | 1959-10-13 | Phillips Petroleum Co | Apparatus for measuring properties of gases |
| US2990492A (en) * | 1958-10-24 | 1961-06-27 | Gen Electric | Electric discharge device |
| US3271756A (en) * | 1960-03-22 | 1966-09-06 | Harold J Burke | Method and apparatus for detecting a hazardous condition |
| US3185845A (en) * | 1961-02-15 | 1965-05-25 | Continental Oil Co | Method of and apparatus for analyzing chemical compounds |
-
1967
- 1967-08-02 US US657826A patent/US3560737A/en not_active Expired - Lifetime
-
1968
- 1968-07-24 NL NL6810468A patent/NL6810468A/xx unknown
- 1968-07-31 DE DE19681773949 patent/DE1773949A1/de active Pending
- 1968-08-01 BE BE718911D patent/BE718911A/xx unknown
- 1968-08-01 GB GB1228800D patent/GB1228800A/en not_active Expired
- 1968-08-02 FR FR1575343D patent/FR1575343A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1773949A1 (de) | 1971-11-25 |
| NL6810468A (de) | 1969-02-04 |
| FR1575343A (de) | 1969-07-18 |
| GB1228800A (de) | 1971-04-21 |
| US3560737A (en) | 1971-02-02 |