JPS5545506Y2 - - Google Patents

Info

Publication number
JPS5545506Y2
JPS5545506Y2 JP1972142726U JP14272672U JPS5545506Y2 JP S5545506 Y2 JPS5545506 Y2 JP S5545506Y2 JP 1972142726 U JP1972142726 U JP 1972142726U JP 14272672 U JP14272672 U JP 14272672U JP S5545506 Y2 JPS5545506 Y2 JP S5545506Y2
Authority
JP
Japan
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.)
Expired
Application number
JP1972142726U
Other languages
Japanese (ja)
Other versions
JPS4996891U (de
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 filed Critical
Priority to JP1972142726U priority Critical patent/JPS5545506Y2/ja
Priority to GB5298273A priority patent/GB1417790A/en
Priority to DE2361403A priority patent/DE2361403C3/de
Priority to FR7344023A priority patent/FR2211128A5/fr
Priority to US423530A priority patent/US3887815A/en
Priority to CH1747273A priority patent/CH563630A5/xx
Publication of JPS4996891U publication Critical patent/JPS4996891U/ja
Application granted granted Critical
Publication of JPS5545506Y2 publication Critical patent/JPS5545506Y2/ja
Expired legal-status Critical Current

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

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP1972142726U 1972-12-14 1972-12-14 Expired JPS5545506Y2 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP1972142726U JPS5545506Y2 (de) 1972-12-14 1972-12-14
GB5298273A GB1417790A (en) 1972-12-14 1973-11-15 Photoelectric smoke detector
DE2361403A DE2361403C3 (de) 1972-12-14 1973-12-10 Photoelektrischer Rauchdetektor oder Rauchmelder
FR7344023A FR2211128A5 (de) 1972-12-14 1973-12-10
US423530A US3887815A (en) 1972-12-14 1973-12-10 Photoelectric smoke detector
CH1747273A CH563630A5 (de) 1972-12-14 1973-12-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972142726U JPS5545506Y2 (de) 1972-12-14 1972-12-14

Publications (2)

Publication Number Publication Date
JPS4996891U JPS4996891U (de) 1974-08-21
JPS5545506Y2 true JPS5545506Y2 (de) 1980-10-24

Family

ID=15322143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1972142726U Expired JPS5545506Y2 (de) 1972-12-14 1972-12-14

Country Status (6)

Country Link
US (1) US3887815A (de)
JP (1) JPS5545506Y2 (de)
CH (1) CH563630A5 (de)
DE (1) DE2361403C3 (de)
FR (1) FR2211128A5 (de)
GB (1) GB1417790A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568627A5 (de) * 1974-07-15 1975-10-31 Cerberus Ag
US4198627A (en) * 1977-07-12 1980-04-15 Cybernet Electronics Corporation Photoelectric synchronous smoke sensor
US4125779A (en) * 1977-07-13 1978-11-14 Chloride, Incorporated Smoke detector
US4193069A (en) * 1978-03-13 1980-03-11 American District Telegraph Company Latching alarm smoke detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702447A (en) * 1968-07-01 1972-11-07 Xerox Corp Electronic chopper system for use in facsimile communication comprising means for alternately grounding and ungrounding inputs of amplifier
US3655289A (en) * 1971-01-22 1972-04-11 Susquehanna Corp Opacity meter with noise suppression
GB1409653A (en) * 1971-09-23 1975-10-08 Masson Scott Thrissell Eng Ltd Methods and apparatus for inspecting the surface of sheet material

Also Published As

Publication number Publication date
CH563630A5 (de) 1975-06-30
JPS4996891U (de) 1974-08-21
GB1417790A (en) 1975-12-17
DE2361403C3 (de) 1975-08-21
US3887815A (en) 1975-06-03
DE2361403A1 (de) 1974-06-27
FR2211128A5 (de) 1974-07-12
DE2361403B2 (de) 1975-01-09

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