CH593491A5 - - Google Patents
Info
- Publication number
- CH593491A5 CH593491A5 CH1626174A CH1626174A CH593491A5 CH 593491 A5 CH593491 A5 CH 593491A5 CH 1626174 A CH1626174 A CH 1626174A CH 1626174 A CH1626174 A CH 1626174A CH 593491 A5 CH593491 A5 CH 593491A5
- Authority
- CH
- Switzerland
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
- G01N27/68—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 electric discharge to ionise a gas
-
- 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)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Business, Economics & Management (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)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5649973A GB1495699A (en) | 1973-12-06 | 1973-12-06 | Apparatus and method for sensing particles |
| GB1837974 | 1974-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH593491A5 true CH593491A5 (es) | 1977-12-15 |
Family
ID=26253344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1626174A CH593491A5 (es) | 1973-12-06 | 1974-12-06 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3978397A (es) |
| CH (1) | CH593491A5 (es) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016745A (en) * | 1975-04-15 | 1977-04-12 | Westinghouse Electric Corporation | Monitoring electrical apparatus against overheating by the use of coating compositions containing thermoparticulatable diazonium salts |
| FR2528980A1 (fr) * | 1982-06-17 | 1983-12-23 | Pgep | Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique |
| DE3713473A1 (de) * | 1987-04-22 | 1988-11-10 | Intospace Gmbh | Fluessigkeitsfreie elektrophorese |
| US5012195A (en) * | 1989-12-28 | 1991-04-30 | Abb Power T&D Company, Inc. | Method for improving the electrical strength of vapor-mist dielectrics |
| EP0820045A3 (de) * | 1996-07-18 | 1999-10-13 | Siemens Aktiengesellschaft | Isonisationsrauchmelder |
| US6964189B2 (en) | 2004-02-25 | 2005-11-15 | Westinghouse Savannah River Company, Llc | Portable aerosol contaminant extractor |
| CN102224406B (zh) * | 2008-11-25 | 2016-12-21 | 皇家飞利浦电子股份有限公司 | 用于感测气载粒子的传感器 |
| US10919047B2 (en) * | 2015-09-08 | 2021-02-16 | Rutgers, The State University Of New Jersey | Personal electrostatic bioaerosol sampler with high sampling flow rate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1808709A (en) * | 1928-10-18 | 1931-06-02 | United Gas Improvement Co | Apparatus for metering gaseous fluids |
| US2786144A (en) * | 1951-12-12 | 1957-03-19 | Socony Mobil Oil Co Inc | Method for detecting hydrocarbons in soil gases |
-
1974
- 1974-12-06 CH CH1626174A patent/CH593491A5/xx not_active IP Right Cessation
- 1974-12-06 US US05/530,150 patent/US3978397A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3978397A (en) | 1976-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: BRITISH TECHNOLOGY GROUP LTD |
|
| PL | Patent ceased |