AU6988674A - Smoke detector - Google Patents

Smoke detector

Info

Publication number
AU6988674A
AU6988674A AU69886/74A AU6988674A AU6988674A AU 6988674 A AU6988674 A AU 6988674A AU 69886/74 A AU69886/74 A AU 69886/74A AU 6988674 A AU6988674 A AU 6988674A AU 6988674 A AU6988674 A AU 6988674A
Authority
AU
Australia
Prior art keywords
smoke detector
smoke
detector
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
AU69886/74A
Inventor
Gerald D Rork
Edward F Kobek
Larry D Larsen
Joseph C Pekarek
Arlon Kompelien
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.)
Honeywell Inc
Original Assignee
Honeywell 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
Priority claimed from US00372552A external-priority patent/US3832552A/en
Priority claimed from US00372557A external-priority patent/US3849685A/en
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of AU6988674A publication Critical patent/AU6988674A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
    • H01J41/08—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of radioactive substances, e.g. alphatrons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/12—Provision for actuation of an alarm
    • G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
    • 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
AU69886/74A 1973-06-22 1974-06-07 Smoke detector Expired AU6988674A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00372552A US3832552A (en) 1973-06-22 1973-06-22 Dual chamber ionization smoke detector
US00372557A US3849685A (en) 1973-06-22 1973-06-22 Ionization chamber with recessed radioactive body

Publications (1)

Publication Number Publication Date
AU6988674A true AU6988674A (en) 1975-12-11

Family

ID=27005819

Family Applications (1)

Application Number Title Priority Date Filing Date
AU69886/74A Expired AU6988674A (en) 1973-06-22 1974-06-07 Smoke detector

Country Status (3)

Country Link
AU (1) AU6988674A (en)
CH (1) CH567310A5 (en)
DE (1) DE2428325A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681932A5 (en) * 1990-12-04 1993-06-15 Cerberus Ag

Also Published As

Publication number Publication date
DE2428325A1 (en) 1975-01-23
CH567310A5 (en) 1975-09-30

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