ZA7312B - Fire alarm apparatus - Google Patents

Fire alarm apparatus

Info

Publication number
ZA7312B
ZA7312B ZA730012A ZA7312A ZA7312B ZA 7312 B ZA7312 B ZA 7312B ZA 730012 A ZA730012 A ZA 730012A ZA 7312 A ZA7312 A ZA 7312A ZA 7312 B ZA7312 B ZA 7312B
Authority
ZA
South Africa
Prior art keywords
fire alarm
alarm apparatus
fire
alarm
Prior art date
Application number
ZA730012A
Inventor
H Beyersdorf
G Bering
L Rims
Original Assignee
Preussag Ag Feuerschutz
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 DE19712165619 external-priority patent/DE2165619C2/en
Application filed by Preussag Ag Feuerschutz filed Critical Preussag Ag Feuerschutz
Publication of ZA7312B publication Critical patent/ZA7312B/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
    • G08B17/11—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
    • 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
    • H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes

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)
ZA730012A 1971-12-30 1973-01-02 Fire alarm apparatus ZA7312B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712165619 DE2165619C2 (en) 1971-12-30 Ionization fire alarms

Publications (1)

Publication Number Publication Date
ZA7312B true ZA7312B (en) 1973-10-31

Family

ID=5829745

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA730012A ZA7312B (en) 1971-12-30 1973-01-02 Fire alarm apparatus

Country Status (3)

Country Link
AU (1) AU5003972A (en)
BR (1) BR7209274D0 (en)
ZA (1) ZA7312B (en)

Also Published As

Publication number Publication date
DE2165619A1 (en) 1973-01-25
AU5003972A (en) 1974-06-20
BR7209274D0 (en) 1973-09-20
DE2165619B1 (en) 1973-01-25

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