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AR208399A1 - SMOKE DETECTOR APPARATUS OF THE TYPE USING A PULSING LIGHT SOURCE AND MEANS THAT UNDER PREDETERMINED CONDITIONS PRODUCE A VOLTAGE IMPULSE IN RESPONSE TO PULSING LIGHT - Google Patents

SMOKE DETECTOR APPARATUS OF THE TYPE USING A PULSING LIGHT SOURCE AND MEANS THAT UNDER PREDETERMINED CONDITIONS PRODUCE A VOLTAGE IMPULSE IN RESPONSE TO PULSING LIGHT

Info

Publication number
AR208399A1
AR208399A1 AR257820A AR25782075A AR208399A1 AR 208399 A1 AR208399 A1 AR 208399A1 AR 257820 A AR257820 A AR 257820A AR 25782075 A AR25782075 A AR 25782075A AR 208399 A1 AR208399 A1 AR 208399A1
Authority
AR
Argentina
Prior art keywords
pulsing light
response
type
predetermined conditions
smoke detector
Prior art date
Application number
AR257820A
Other languages
Spanish (es)
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
Application filed by Pyrotector Inc filed Critical Pyrotector Inc
Application granted granted Critical
Publication of AR208399A1 publication Critical patent/AR208399A1/en

Links

Classifications

    • 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

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Control Or Security For Electrophotography (AREA)
AR257820A 1974-03-08 1975-01-01 SMOKE DETECTOR APPARATUS OF THE TYPE USING A PULSING LIGHT SOURCE AND MEANS THAT UNDER PREDETERMINED CONDITIONS PRODUCE A VOLTAGE IMPULSE IN RESPONSE TO PULSING LIGHT AR208399A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
AR208399A1 true AR208399A1 (en) 1976-12-27

Family

ID=23783876

Family Applications (1)

Application Number Title Priority Date Filing Date
AR257820A AR208399A1 (en) 1974-03-08 1975-01-01 SMOKE DETECTOR APPARATUS OF THE TYPE USING A PULSING LIGHT SOURCE AND MEANS THAT UNDER PREDETERMINED CONDITIONS PRODUCE A VOLTAGE IMPULSE IN RESPONSE TO PULSING LIGHT

Country Status (4)

Country Link
US (1) US3917956A (en)
JP (1) JPS5386291A (en)
AR (1) AR208399A1 (en)
GB (1) GB1490867A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063227A (en) * 1975-09-08 1977-12-13 Cega, Inc. Smoke detector
JPS5354000A (en) * 1976-10-26 1978-05-16 Matsushita Electric Works Ltd Detection signal processing circuit of photoelectric type smoke detectors
NZ185220A (en) * 1976-11-16 1981-10-19 Chloride Batterijen Bv Reflected light smoke detector pulse rate increases on detection
US4163969A (en) * 1977-06-20 1979-08-07 American District Telegraph Company Variable frequency light pulser for smoke detectors
US4198627A (en) * 1977-07-12 1980-04-15 Cybernet Electronics Corporation Photoelectric synchronous smoke sensor
US4249082A (en) * 1977-09-20 1981-02-03 Cybernet Electronics Corporation Photoelectric smoke sensor box
JPS5458180U (en) * 1977-09-30 1979-04-21
JPS598876B2 (en) * 1980-05-22 1984-02-28 ニッタン株式会社 Transmitted light smoke detector
AU577551B2 (en) * 1983-10-21 1988-09-29 Vision Systems Limited Improvements relating to smoke detection apparatus
JPS60169740A (en) * 1984-02-14 1985-09-03 Nippon Denso Co Ltd Smoke detector
FR2619919B1 (en) * 1987-09-01 1990-01-19 Jaeger DEVICE FOR MEASURING VISIBILITY IN A TURBID MEDIUM
DK2093734T3 (en) * 2008-02-19 2011-10-10 Siemens Ag Smoke alarm with timely interpretation of a feedback signal, test method for operation of a smoke alarm

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696382A (en) * 1970-11-06 1972-10-03 Functional Devices Inc Alarm system
US3751667A (en) * 1971-08-10 1973-08-07 G Quittner Radiation path continuity transducer of high pass frequency

Also Published As

Publication number Publication date
JPS5386291A (en) 1978-07-29
GB1490867A (en) 1977-11-02
US3917956A (en) 1975-11-04

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