FR2166005B3 - - Google Patents

Info

Publication number
FR2166005B3
FR2166005B3 FR7246101A FR7246101A FR2166005B3 FR 2166005 B3 FR2166005 B3 FR 2166005B3 FR 7246101 A FR7246101 A FR 7246101A FR 7246101 A FR7246101 A FR 7246101A FR 2166005 B3 FR2166005 B3 FR 2166005B3
Authority
FR
France
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
FR7246101A
Other languages
French (fr)
Other versions
FR2166005A1 (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.)
Preussag AG Feuerschutz
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
Priority claimed from DE2230932A external-priority patent/DE2230932C2/en
Application filed by Preussag AG Feuerschutz filed Critical Preussag AG Feuerschutz
Publication of FR2166005A1 publication Critical patent/FR2166005A1/fr
Application granted granted Critical
Publication of FR2166005B3 publication Critical patent/FR2166005B3/fr
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
    • G08B17/11—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
FR7246101A 1971-12-30 1972-12-13 Expired FR2166005B3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712165619 DE2165619C2 (en) 1971-12-30 Ionization fire alarms
DE2230932A DE2230932C2 (en) 1972-06-23 1972-06-23 Ionization fire alarms

Publications (2)

Publication Number Publication Date
FR2166005A1 FR2166005A1 (en) 1973-08-10
FR2166005B3 true FR2166005B3 (en) 1976-02-13

Family

ID=25762258

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7246101A Expired FR2166005B3 (en) 1971-12-30 1972-12-13

Country Status (9)

Country Link
JP (1) JPS4879998A (en)
AT (1) AT332762B (en)
BE (1) BE793205A (en)
CH (1) CH558059A (en)
ES (1) ES410210A1 (en)
FR (1) FR2166005B3 (en)
GB (1) GB1407639A (en)
IT (1) IT976193B (en)
NL (1) NL7217843A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH551057A (en) * 1973-04-17 1974-06-28 Cerberus Ag IONIZATION ALARM.
AT378431B (en) * 1983-06-30 1985-08-12 Siemens Ag Oesterreich SAMPLE CHAMBER OF CONVENTIONAL SIZE FOR INSTALLATION OF AN IONIZATION SMOKE DETECTOR INSERT

Also Published As

Publication number Publication date
NL7217843A (en) 1973-07-03
BE793205A (en) 1973-04-16
GB1407639A (en) 1975-09-24
ATA1095272A (en) 1976-01-15
JPS4879998A (en) 1973-10-26
FR2166005A1 (en) 1973-08-10
AT332762B (en) 1976-10-11
CH558059A (en) 1975-01-15
IT976193B (en) 1974-08-20
ES410210A1 (en) 1975-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse