CH446961A - Device for detecting smoke - Google Patents

Device for detecting smoke

Info

Publication number
CH446961A
CH446961A CH1780965A CH1780965A CH446961A CH 446961 A CH446961 A CH 446961A CH 1780965 A CH1780965 A CH 1780965A CH 1780965 A CH1780965 A CH 1780965A CH 446961 A CH446961 A CH 446961A
Authority
CH
Switzerland
Prior art keywords
detecting smoke
smoke
detecting
Prior art date
Application number
CH1780965A
Other languages
German (de)
Inventor
Aubrey Jaffe Abraham
Nadav Eliahu
Original Assignee
Yissum Research Dev Co Hebrew
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yissum Research Dev Co Hebrew filed Critical Yissum Research Dev Co Hebrew
Publication of CH446961A publication Critical patent/CH446961A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/025—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electrical or electromechanical means
    • 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
    • G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
    • 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
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (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)
CH1780965A 1964-12-27 1965-12-23 Device for detecting smoke CH446961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL22673A IL22673A (en) 1964-12-27 1964-12-27 Sensitive smoke and fire detector

Publications (1)

Publication Number Publication Date
CH446961A true CH446961A (en) 1967-11-15

Family

ID=11043453

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1780965A CH446961A (en) 1964-12-27 1965-12-23 Device for detecting smoke

Country Status (7)

Country Link
US (1) US3470551A (en)
CH (1) CH446961A (en)
DE (1) DE1277711B (en)
FR (1) FR1473061A (en)
GB (1) GB1087609A (en)
IL (1) IL22673A (en)
NL (1) NL6516966A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573777A (en) * 1968-12-09 1971-04-06 Honeywell Inc Combustion products detector control apparatus
US3673586A (en) * 1970-02-19 1972-06-27 Statitrol Corp Resistance controlled timed pulse generator
US3754219A (en) * 1972-01-03 1973-08-21 Johnson Service Co High impedance gaseous ion sensing and detection system
US4264331A (en) * 1977-08-03 1981-04-28 Johnson Controls, Inc. Charged non-conductive polar gas sensing element and detection system
US4360856A (en) * 1981-01-08 1982-11-23 Witthaus Ira L Electric sensor package
US4456883A (en) 1982-10-04 1984-06-26 Ambac Industries, Incorporated Method and apparatus for indicating an operating characteristic of an internal combustion engine
CH666135A5 (en) * 1982-12-03 1988-06-30 Slm Investissements S A FIRE DETECTORS.
US4631482A (en) * 1984-10-09 1986-12-23 Auburn International, Inc. Dust flow inducing monitor
US6057774A (en) * 1999-01-21 2000-05-02 Brk Brands, Inc. Smoke alarm with anti-dust screen
DE102014019172B4 (en) 2014-12-17 2023-12-07 Elmos Semiconductor Se Device and method for distinguishing between solid objects, cooking fumes and smoke using a compensating optical measuring system
DE102014019773B4 (en) 2014-12-17 2023-12-07 Elmos Semiconductor Se Device and method for distinguishing between solid objects, cooking fumes and smoke using the display of a mobile telephone

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815483A (en) * 1957-12-03 Electric field detection
DE718327C (en) * 1937-06-09 1942-03-09 Walter Jaeger Fire and smoke alarms
DE901319C (en) * 1938-12-15 1954-01-11 Siemens Ag Changeable electrical capacitor
US2408051A (en) * 1942-04-04 1946-09-24 American District Telegraph Co Fire and smoke detector and the like
US2491445A (en) * 1947-02-24 1949-12-13 Shell Dev Flowmeter
US2556458A (en) * 1948-02-09 1951-06-12 W E Anderson Inc Static electricity indicator
DE923073C (en) * 1952-03-06 1955-02-03 Lufttechnische Ges M B H Method and device for periodic measurement of the electrical charge in atmospheric air
AT198548B (en) * 1954-12-16 1958-07-10 Eugen Dr Feifel Device for determining the dust content of gases and vapors
US2820947A (en) * 1955-04-29 1958-01-21 Gunn Ross Electric field meter
DE1056008B (en) * 1956-04-06 1959-04-23 Phys Maurice E Nahmias Dr Device for detecting smoke etc.
NL224264A (en) * 1957-10-24
DE1114413B (en) * 1959-06-06 1961-09-28 Telefonbau & Normalzeit Gmbh Electric alarm system

Also Published As

Publication number Publication date
US3470551A (en) 1969-09-30
NL6516966A (en) 1966-03-25
FR1473061A (en) 1967-03-17
GB1087609A (en) 1967-10-18
DE1277711B (en) 1968-09-12
IL22673A (en) 1968-06-20

Similar Documents

Publication Publication Date Title
CH432044A (en) Dew point detection device
FI47397C (en) Target device.
CH434790A (en) Microtome
CH446961A (en) Device for detecting smoke
AT269955B (en) Device for storing information
AT250080B (en) Device for throttling gases
FR1453673A (en) Memory-file system
AT263052B (en) Control device
FR1422961A (en) Pommelle device
AT244610B (en) Measuring device
CH420665A (en) Device for testing fresh concrete
AT254284B (en) Device for identifying pushbutton signals
CH414411A (en) Scraper device
FR1408337A (en) Switch-selector device
FR1390334A (en) Handling device
FR1418969A (en) Gutters
AT266934B (en) Device for storing information
FR1390651A (en) Hoe-unloader device
FR1422309A (en) Detection device
FR1429739A (en) Hygrometric device
FR1399293A (en) Transhipment device
FR1409943A (en) Handling device
FR1391561A (en) Advanced formwork device
FR1468973A (en) Selection device
FR1442215A (en) Camera-setting