FR2268263A1 - - Google Patents
Info
- Publication number
- FR2268263A1 FR2268263A1 FR7511836A FR7511836A FR2268263A1 FR 2268263 A1 FR2268263 A1 FR 2268263A1 FR 7511836 A FR7511836 A FR 7511836A FR 7511836 A FR7511836 A FR 7511836A FR 2268263 A1 FR2268263 A1 FR 2268263A1
- Authority
- FR
- France
- 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.)
- Granted
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)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Management (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4408974U JPS545665Y2 (US08177716-20120515-C00003.png) | 1974-04-18 | 1974-04-18 | |
| JP14199074A JPS5168888A (ja) | 1974-12-12 | 1974-12-12 | Ionkashikikemurikanchiki |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2268263A1 true FR2268263A1 (US08177716-20120515-C00003.png) | 1975-11-14 |
| FR2268263B1 FR2268263B1 (US08177716-20120515-C00003.png) | 1979-03-30 |
Family
ID=26383940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7511836A Expired FR2268263B1 (US08177716-20120515-C00003.png) | 1974-04-18 | 1975-04-16 |
Country Status (5)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171486A (en) * | 1977-08-31 | 1979-10-16 | Emhart Industries, Inc. | Ionization smoke detector with controlled sensitivity |
| US4220862A (en) * | 1978-01-13 | 1980-09-02 | General Electric Company | Ionization chamber for a smoke detector having an improved arrangement for capturing airborne combustion products |
| BE874157A (fr) * | 1979-02-14 | 1979-05-29 | Inst Nat Radio Elements | Detecteur ionique |
| US4336454A (en) * | 1979-05-18 | 1982-06-22 | The Radiochemical Centre Limited | Smoke detector ionisation chamber using nickel-63 source |
| JPS63239592A (ja) * | 1987-03-27 | 1988-10-05 | ホーチキ株式会社 | 光電式煙感知器 |
| JP2654073B2 (ja) * | 1988-04-08 | 1997-09-17 | 松下電工株式会社 | 埋込み感知器のベース |
| US5384462A (en) * | 1992-12-08 | 1995-01-24 | Levitt; Roy C. | Process and apparatus for localizing a source of charged particles using an electric field |
| AU1966099A (en) * | 1997-12-03 | 1999-06-16 | Walter Di Fulvio | Control device for a toilet |
| US9053892B2 (en) | 2010-12-30 | 2015-06-09 | Walter Kidde Portable Equipment, Inc. | Ionization device |
| EP2666721B1 (en) * | 2012-05-24 | 2019-05-15 | Airbus Operations GmbH | Smoke detection system and method for operating a smoke detection system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU48167A1 (US08177716-20120515-C00003.png) * | 1965-03-11 | 1966-09-12 | Applic Electroniques Ets | |
| CH475614A (de) * | 1968-06-18 | 1969-07-15 | Cerberus Ag Werke Fuer Elektro | Ionisationsfeuermelder |
| CH508251A (de) * | 1970-07-23 | 1971-05-31 | Cerberus Ag | Ionisationsfeuermelder |
| BE789390A (fr) * | 1971-10-02 | 1973-01-15 | Gewerk Eisenhuette Westfalia | Chassis de soutenement a boucliers |
-
1975
- 1975-04-16 FR FR7511836A patent/FR2268263B1/fr not_active Expired
- 1975-04-16 CA CA224,744A patent/CA1042564A/en not_active Expired
- 1975-04-17 GB GB15952/75A patent/GB1493509A/en not_active Expired
- 1975-04-17 DE DE2516860A patent/DE2516860C2/de not_active Expired
- 1975-04-17 US US05/568,969 patent/US4017733A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2516860C2 (de) | 1983-07-07 |
| DE2516860A1 (de) | 1975-10-30 |
| GB1493509A (en) | 1977-11-30 |
| CA1042564A (en) | 1978-11-14 |
| FR2268263B1 (US08177716-20120515-C00003.png) | 1979-03-30 |
| AU8021675A (en) | 1976-10-21 |
| US4017733A (en) | 1977-04-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |