ZA828096B - Smoke detector - Google Patents

Smoke detector

Info

Publication number
ZA828096B
ZA828096B ZA828096A ZA828096A ZA828096B ZA 828096 B ZA828096 B ZA 828096B ZA 828096 A ZA828096 A ZA 828096A ZA 828096 A ZA828096 A ZA 828096A ZA 828096 B ZA828096 B ZA 828096B
Authority
ZA
South Africa
Prior art keywords
radiation
diaphragm
solid angle
smoke detector
receiver
Prior art date
Application number
ZA828096A
Other languages
English (en)
Inventor
Juerg Muggli
Peter Gruber
Original Assignee
Cerberus Ag
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 Cerberus Ag filed Critical Cerberus Ag
Publication of ZA828096B publication Critical patent/ZA828096B/xx

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Vehicle Body Suspensions (AREA)
  • Gyroscopes (AREA)
ZA828096A 1981-11-11 1982-11-04 Smoke detector ZA828096B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7250/81A CH656474A5 (de) 1981-11-11 1981-11-11 Rauchdetektor.

Publications (1)

Publication Number Publication Date
ZA828096B true ZA828096B (en) 1983-09-28

Family

ID=4322193

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA828096A ZA828096B (en) 1981-11-11 1982-11-04 Smoke detector

Country Status (17)

Country Link
US (1) US4524281A (fr)
EP (1) EP0079011B1 (fr)
JP (1) JPS5888643A (fr)
AT (1) ATE17061T1 (fr)
AU (1) AU556837B2 (fr)
BR (1) BR8206535A (fr)
CA (1) CA1208333A (fr)
CH (1) CH656474A5 (fr)
DE (1) DE3268057D1 (fr)
DK (1) DK502482A (fr)
ES (1) ES517588A0 (fr)
FI (1) FI75438C (fr)
IL (1) IL67159A0 (fr)
NO (1) NO157156C (fr)
NZ (1) NZ202364A (fr)
YU (1) YU252282A (fr)
ZA (1) ZA828096B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626144A (ja) * 1985-07-03 1987-01-13 Nittan Co Ltd 光電式煙感知器
US4814748A (en) * 1987-11-09 1989-03-21 Southwest Laboratories, Inc. Temporary desensitization technique for smoke alarms
GB2259763B (en) * 1991-09-20 1995-05-31 Hochiki Co Fire alarm system
ITTO20070355A1 (it) * 2007-05-18 2008-11-19 Elkron Spa Dispositivo e metodo per rilevare fumo
GB2537940B (en) 2015-05-01 2018-02-14 Thorn Security Fire detector drift compensation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB966867A (en) * 1961-01-05 1964-08-19 Pyrene Co Ltd Improvements relating to smoke indicators
GB1172354A (en) * 1966-02-16 1969-11-26 Pyrene Co Ltd Improvements relating to Smoke Detectors
JPS4418923Y1 (fr) * 1966-09-16 1969-08-14
US3868184A (en) * 1973-07-25 1975-02-25 Electro Signal Lab Optical smoke detector with light scattering test device
JPS50134172A (fr) * 1974-04-17 1975-10-24
US3985453A (en) * 1974-07-19 1976-10-12 Matsushita Electric Works, Ltd. Light scattering type smoke detector
US4011458A (en) * 1975-10-09 1977-03-08 Pyrotector, Incorporated Photoelectric detector with light source intensity regulation
FR2357888A1 (fr) * 1976-04-01 1978-02-03 Cerberus Ag Detecteur de fumee
US4216377A (en) * 1977-06-27 1980-08-05 Nittan Company, Limited Light scattering smoke detector
US4269510A (en) * 1978-12-21 1981-05-26 Cerberus Ag Smoke detector
US4430646A (en) * 1980-12-31 1984-02-07 American District Telegraph Company Forward scatter smoke detector

Also Published As

Publication number Publication date
CA1208333A (fr) 1986-07-22
FI823838A0 (fi) 1982-11-09
DK502482A (da) 1983-05-12
IL67159A0 (en) 1983-03-31
NZ202364A (en) 1986-04-11
JPS5888643A (ja) 1983-05-26
ES8309022A1 (es) 1983-10-01
CH656474A5 (de) 1986-06-30
ES517588A0 (es) 1983-10-01
US4524281A (en) 1985-06-18
NO157156B (no) 1987-10-19
ATE17061T1 (de) 1986-01-15
BR8206535A (pt) 1983-09-27
NO823754L (no) 1983-05-13
FI75438B (fi) 1988-02-29
AU9017582A (en) 1983-05-19
AU556837B2 (en) 1986-11-20
NO157156C (no) 1988-01-27
FI823838L (fi) 1983-05-12
YU252282A (en) 1985-10-31
DE3268057D1 (en) 1986-01-30
EP0079011A1 (fr) 1983-05-18
EP0079011B1 (fr) 1985-12-18
FI75438C (fi) 1988-06-09

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