JPS4996891U - - Google Patents

Info

Publication number
JPS4996891U
JPS4996891U JP1972142726U JP14272672U JPS4996891U JP S4996891 U JPS4996891 U JP S4996891U JP 1972142726 U JP1972142726 U JP 1972142726U JP 14272672 U JP14272672 U JP 14272672U JP S4996891 U JPS4996891 U JP S4996891U
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.)
Granted
Application number
JP1972142726U
Other languages
Japanese (ja)
Other versions
JPS5545506Y2 (enrdf_load_html_response
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 US423530A priority patent/US3887815A/en
Priority to FR7344023A priority patent/FR2211128A5/fr
Priority to DE2361403A priority patent/DE2361403C3/de
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

  • 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)
JP1972142726U 1972-12-14 1972-12-14 Expired JPS5545506Y2 (enrdf_load_html_response)

Priority Applications (6)

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

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=15322143

Family Applications (1)

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

Country Status (6)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568627A5 (enrdf_load_html_response) * 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
RU2134907C1 (ru) * 1998-06-15 1999-08-20 ТОО "Производственное объединение "Спецавтоматика" Способ регистрации дыма и устройство для его осуществления
RU2221278C2 (ru) * 2001-01-26 2004-01-10 Общество с ограниченной ответственностью "Конструкторское Бюро Пожарной Автоматики" Устройство регистрации дыма
RU2224293C1 (ru) * 2002-06-20 2004-02-20 Корчунов Александр Владимирович Пожарный извещатель с автотестированием
RU2258260C2 (ru) * 2003-06-30 2005-08-10 Закрытое акционерное общество "Телесофт-Сервис" Дымовой извещатель
RU2253902C1 (ru) * 2003-12-25 2005-06-10 Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (Технический университет) Датчик пожарной сигнализации
UA74697C2 (en) * 2004-03-12 2006-01-16 Private Entpr Arton Linear smoke detector
UA75528C2 (en) * 2004-09-07 2006-04-17 Private Entpr Arton Smoke fire detector
UA75532C2 (en) * 2004-09-17 2006-04-17 Private Entpr Arton Smoke fire detector
RU2314423C1 (ru) * 2006-07-04 2008-01-10 Анатолий Владимирович Ремезов Автоматическая система защиты газовоздушных скважин от взрыва
RU2333362C1 (ru) * 2007-01-29 2008-09-10 Анатолий Владимирович Ремезов Автоматическая система обнаружения и подавления на ранней стадии возникновения взрывов метана и угольной пыли в проходческих забоях
UA87559C2 (uk) * 2007-09-10 2009-07-27 Частное Предприятие "Артон" Тепловий пожежний сповіщувач
RU2420808C2 (ru) * 2008-02-18 2011-06-10 Частное Предприятие "Артон" Тепловой пожарный извещатель мисевича
US20240361238A1 (en) * 2023-04-28 2024-10-31 Texas Instruments Incorporated Light scattering measurement based on skip light pulses
US20250022357A1 (en) * 2023-07-12 2025-01-16 Pixart Imaging Inc. Smoke detector and optical sensing system

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
GB1417790A (en) 1975-12-17
CH563630A5 (enrdf_load_html_response) 1975-06-30
DE2361403B2 (de) 1975-01-09
DE2361403C3 (de) 1975-08-21
DE2361403A1 (de) 1974-06-27
JPS5545506Y2 (enrdf_load_html_response) 1980-10-24
FR2211128A5 (enrdf_load_html_response) 1974-07-12
US3887815A (en) 1975-06-03

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