CH580848A5 - - Google Patents

Info

Publication number
CH580848A5
CH580848A5 CH1079974A CH1079974A CH580848A5 CH 580848 A5 CH580848 A5 CH 580848A5 CH 1079974 A CH1079974 A CH 1079974A CH 1079974 A CH1079974 A CH 1079974A CH 580848 A5 CH580848 A5 CH 580848A5
Authority
CH
Switzerland
Application number
CH1079974A
Original Assignee
Pyrotector Inc
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
Priority claimed from US449362A external-priority patent/US3917956A/en
Application filed by Pyrotector Inc filed Critical Pyrotector Inc
Publication of CH580848A5 publication Critical patent/CH580848A5/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • 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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke

Landscapes

  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
CH1079974A 1973-11-26 1974-08-07 CH580848A5 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41920673A 1973-11-26 1973-11-26
US449362A US3917956A (en) 1974-03-08 1974-03-08 Smoke detector

Publications (1)

Publication Number Publication Date
CH580848A5 true CH580848A5 (de) 1976-10-15

Family

ID=27024396

Family Applications (2)

Application Number Title Priority Date Filing Date
CH560576A CH599645A5 (de) 1973-11-26 1974-08-07
CH1079974A CH580848A5 (de) 1973-11-26 1974-08-07

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH560576A CH599645A5 (de) 1973-11-26 1974-08-07

Country Status (11)

Country Link
JP (1) JPS50114275A (de)
BR (1) BR7408707D0 (de)
CA (1) CA1056931A (de)
CH (2) CH599645A5 (de)
CS (1) CS186786B2 (de)
DE (2) DE2462876C2 (de)
FR (1) FR2254024B3 (de)
GB (1) GB1490866A (de)
IL (1) IL45331A (de)
IN (1) IN143206B (de)
NL (1) NL7410079A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145189A1 (de) * 1983-10-21 1985-06-19 COLE, Martin Terence Rauchanzeigegerät

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5354000A (en) * 1976-10-26 1978-05-16 Matsushita Electric Works Ltd Detection signal processing circuit of photoelectric type smoke detectors
US4125779A (en) * 1977-07-13 1978-11-14 Chloride, Incorporated Smoke detector
CH638331A5 (de) * 1979-02-22 1983-09-15 Cerberus Ag Rauchdetektor.
EP0014874B1 (de) * 1979-02-26 1983-06-08 Cerberus Ag Mit Strahlunsimpulsen arbeitender Brandmelder
BE881812A (nl) * 1979-12-17 1980-06-16 Cerberus Ag Meldingsstelsel
JPS5716956U (de) * 1980-06-30 1982-01-28
JPS6014398B2 (ja) * 1981-03-18 1985-04-12 ホーチキ株式会社 光電式煙感知器
JPS6151U (ja) * 1985-05-17 1986-01-06 京セラ株式会社 光電式煙検出報知装置
AU2020279396A1 (en) * 2019-05-23 2021-12-02 Northgate Technologies Inc. System and method for smoke removal in a gas recirculation system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH417405A (de) * 1964-07-14 1966-07-15 Cerberus Ag Werk Fuer Elektron Vorrichtung zur Feststellung von Aerosolen in Luft
US3382762A (en) * 1967-02-21 1968-05-14 Alfred W. Vasel Smoke detecting device
US3555532A (en) 1968-10-29 1971-01-12 Graham Stuart Corp Vapor or particle detection device
GB1278205A (en) * 1970-02-11 1972-06-21 Shorrock Develpoments Ltd Smoke detecting device
CH520990A (de) * 1970-12-21 1972-03-31 Cerberus Ag Rauchdetektor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145189A1 (de) * 1983-10-21 1985-06-19 COLE, Martin Terence Rauchanzeigegerät

Also Published As

Publication number Publication date
IN143206B (de) 1977-10-15
AU7330074A (en) 1976-03-18
NL7410079A (nl) 1975-05-28
JPS50114275A (de) 1975-09-08
BR7408707D0 (pt) 1975-08-26
CH599645A5 (de) 1978-05-31
IL45331A (en) 1977-12-30
IL45331A0 (en) 1974-10-22
DE2448195A1 (de) 1975-05-28
DE2462876C2 (de) 1983-06-09
DE2448195C2 (de) 1984-08-23
FR2254024B3 (de) 1979-02-02
GB1490866A (en) 1977-11-02
FR2254024A1 (de) 1975-07-04
CS186786B2 (en) 1978-12-29
CA1056931A (en) 1979-06-19

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Legal Events

Date Code Title Description
PUE Assignment

Owner name: PYROTECTOR INCORPORATED

PL Patent ceased