GB1427092A - Smoke detector - Google Patents

Smoke detector

Info

Publication number
GB1427092A
GB1427092A GB1018173A GB1018173A GB1427092A GB 1427092 A GB1427092 A GB 1427092A GB 1018173 A GB1018173 A GB 1018173A GB 1018173 A GB1018173 A GB 1018173A GB 1427092 A GB1427092 A GB 1427092A
Authority
GB
United Kingdom
Prior art keywords
detector
smoke
light
photo
chamber
Prior art date
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
GB1018173A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANCAIS DETECTION ELETR
LA DETECTION ELECTRONIQUE FRANCAISE PROTECBAT
Original Assignee
FRANCAIS DETECTION ELETR
LA DETECTION ELECTRONIQUE FRANCAISE PROTECBAT
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 FR7207812A external-priority patent/FR2175265A5/fr
Priority claimed from FR7219006A external-priority patent/FR2185931A6/fr
Application filed by FRANCAIS DETECTION ELETR, LA DETECTION ELECTRONIQUE FRANCAISE PROTECBAT filed Critical FRANCAIS DETECTION ELETR
Publication of GB1427092A publication Critical patent/GB1427092A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/60—Pipe-line systems wet, i.e. containing extinguishing material even when not in use
    • A62C35/605—Pipe-line systems wet, i.e. containing extinguishing material even when not in use operating and sounding alarm automatically
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB1018173A 1972-03-07 1973-03-02 Smoke detector Expired GB1427092A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7207812A FR2175265A5 (https=) 1972-03-07 1972-03-07
FR7219006A FR2185931A6 (https=) 1972-05-26 1972-05-26

Publications (1)

Publication Number Publication Date
GB1427092A true GB1427092A (en) 1976-03-03

Family

ID=26216960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1018173A Expired GB1427092A (en) 1972-03-07 1973-03-02 Smoke detector

Country Status (8)

Country Link
US (1) US3922655A (https=)
BE (1) BE796166A (https=)
CH (1) CH566059A5 (https=)
DD (1) DD105339A5 (https=)
ES (1) ES412391A1 (https=)
GB (1) GB1427092A (https=)
IT (1) IT981112B (https=)
NL (1) NL7303147A (https=)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001800A (en) * 1974-06-24 1977-01-04 Gentex Company Smoke detecting device
US4091364A (en) * 1974-09-09 1978-05-23 Unitec, Inc. Combustion detection device
US4011458A (en) * 1975-10-09 1977-03-08 Pyrotector, Incorporated Photoelectric detector with light source intensity regulation
US4038649A (en) * 1975-09-16 1977-07-26 Emhart Industries, Inc. Smoke detection alarm device
US4025915A (en) * 1975-10-06 1977-05-24 Electro Signal Lab, Inc. LED smoke detector circuit
DE2709487A1 (de) * 1976-03-17 1977-09-22 Nohmi Bosai Kogyo Co Ltd Brandmelder
CH600456A5 (https=) * 1976-12-23 1978-06-15 Cerberus Ag
JPS5432182U (https=) * 1977-08-05 1979-03-02
US4155653A (en) * 1977-10-14 1979-05-22 The United States Of America As Represented By The Secretary Of The Navy Smoke-measuring transducer
JPS5462800A (en) * 1977-10-28 1979-05-21 Nittan Co Ltd Light type smoke sensor having trouble detecting function
US4227191A (en) * 1978-02-21 1980-10-07 Samuel Raber Light emitting smoke detector
US4242673A (en) * 1978-03-13 1980-12-30 American District Telegraph Company Optical particle detector
US4249169A (en) * 1979-05-18 1981-02-03 Malinowski William J Optical smoke detector
CH655396B (https=) * 1981-11-11 1986-04-15
US4680576A (en) * 1982-11-29 1987-07-14 Gentex Corporation Photoelectric smoke detector and alarm system
US6876305B2 (en) * 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
US7564365B2 (en) * 2002-08-23 2009-07-21 Ge Security, Inc. Smoke detector and method of detecting smoke
AU2003268142A1 (en) * 2002-08-23 2004-03-11 General Electric Company Rapidly responding, false detection immune alarm signal producing smoke detector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1828894A (en) * 1928-10-30 1931-10-27 Kidde & Co Walter Supervisory system for detecting suspended matter in fluids
US2537028A (en) * 1945-10-02 1951-01-09 C O Two Fire Equipment Co Smoke detector and signal
US2437071A (en) * 1945-10-02 1948-03-02 C O Two Fire Equipment Co Multiple smoke detector
US3226703A (en) * 1962-11-19 1965-12-28 Sam M Finkle Fire detecting device
US3409885A (en) * 1964-03-26 1968-11-05 Guardian Industries Smoke detection apparatus
US3474435A (en) * 1966-10-11 1969-10-21 Vericon Inc Vapor or particle detection devices
US3655289A (en) * 1971-01-22 1972-04-11 Susquehanna Corp Opacity meter with noise suppression
US3727056A (en) * 1972-03-03 1973-04-10 Electro Signal Lab Photon couplers with solid state lamps

Also Published As

Publication number Publication date
US3922655A (en) 1975-11-25
ES412391A1 (es) 1976-01-16
CH566059A5 (https=) 1975-08-29
DD105339A5 (https=) 1974-04-12
NL7303147A (https=) 1973-09-11
IT981112B (it) 1974-10-10
BE796166A (fr) 1973-07-02

Similar Documents

Publication Publication Date Title
GB1427092A (en) Smoke detector
GB1432787A (en) Method for sensing the presence of fire and apparatus employing said method
IE34870B1 (en) Photoanalysis apparatus
NO20032341L (no) Höysensitiv partikkeldeteksjon
GB1417790A (en) Photoelectric smoke detector
GB1130153A (en) Improvements in or relating to sorting apparatus
GB1436405A (en) Fire detectors
GB1534969A (en) Radiation detection apparatus
IT1083184B (it) Dispositivo di rivelazione di sorgente luminosa e sistema comportante un tale dispositivo
EP0321265A3 (en) Optoelectrical particle detection apparatus
US4025915A (en) LED smoke detector circuit
IL42930A (en) Fire alarms
GB1301437A (https=)
ES393002A1 (es) Dispositivo avisador de senalizacion de trafico.
GB1329428A (en) Airfield inset runway light
Gregory A note on summation time of the eye indicated by signal/noise discrimination
JPS542700A (en) Optical fire detector
JPS5210789A (en) Signal processing circuit of light-scattering type smoke senser
GB1129402A (en) Improvements in or relating to detectors for smoke and like particles
JPS57172254A (en) Speed measuring device
SE328807B (https=)
GB1316518A (en) Selectively controlled alarm
ES283034A1 (es) Método y dispositivo para iluminar intensamente zonas de niebla
JPS5317777A (en) Transmission type smoke sensor
JPS53123985A (en) Photoelectric type smoke detector

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee