AU6025073A - Fire detectors - Google Patents

Fire detectors

Info

Publication number
AU6025073A
AU6025073A AU60250/73A AU6025073A AU6025073A AU 6025073 A AU6025073 A AU 6025073A AU 60250/73 A AU60250/73 A AU 60250/73A AU 6025073 A AU6025073 A AU 6025073A AU 6025073 A AU6025073 A AU 6025073A
Authority
AU
Australia
Prior art keywords
fire detectors
detectors
fire
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
AU60250/73A
Other versions
AU477410B2 (en
Inventor
Shumway Anderson Quinn
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.)
Anglo American Corp of South Africa Ltd
Original Assignee
Anglo American Corp of South Africa Ltd
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 Anglo American Corp of South Africa Ltd filed Critical Anglo American Corp of South Africa Ltd
Application granted granted Critical
Publication of AU6025073A publication Critical patent/AU6025073A/en
Publication of AU477410B2 publication Critical patent/AU477410B2/en
Expired legal-status Critical Current

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
    • 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
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • 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

  • 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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
AU60250/73A 1972-09-13 1973-09-12 Fire detectors Expired AU477410B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA726258A ZA726258B (en) 1972-09-13 1972-09-13 Fire detector
ZAZA72/6258 1972-09-13

Publications (2)

Publication Number Publication Date
AU6025073A true AU6025073A (en) 1975-03-13
AU477410B2 AU477410B2 (en) 1975-03-13

Family

ID=

Also Published As

Publication number Publication date
FR2199150A1 (en) 1974-04-05
DE2346249B2 (en) 1977-09-15
ZA726258B (en) 1973-11-28
GB1436405A (en) 1976-05-19
FR2199150B1 (en) 1977-05-20
US3921158A (en) 1975-11-18
DE2346249A1 (en) 1974-03-21
DK137293C (en) 1978-07-10
DE2346249C3 (en) 1978-05-03
DK137293B (en) 1978-02-13
CA1015042A (en) 1977-08-02
JPS4969099A (en) 1974-07-04

Similar Documents

Publication Publication Date Title
CA1018680A (en) Ionization-type fire sensor
ZA726258B (en) Fire detector
CA981754A (en) Smoke detector failure alarm
CA1010969A (en) Fire alarms
AU476368B2 (en) Fire alarms
CA990865A (en) Smoke detectors
CA950556A (en) Smoke detectors
AU4105272A (en) Ionization smoke detector
AU477410B2 (en) Fire detectors
AU6059973A (en) Smoke detectors
CA909400A (en) Ionization smoke detector
CA913247A (en) Smoke detector
AU482860B2 (en) Smoke detector
AU466065B2 (en) Smoke detector
CA950868A (en) Fire escape means
CA906107A (en) Ionization fire detector
CA902272A (en) Ionization fire alarm
AU5580273A (en) Smoke detector
CA951219A (en) Fire extinguishing system
CA893933A (en) Ionization smoke detector
CA913814A (en) Ionization smoke detector
CA896197A (en) Ionization smoke detector
CA893934A (en) Ionization smoke detector
CA913248A (en) Ionization smoke detector
CA893935A (en) Fire detecting system