FR2244218A1 - - Google Patents

Info

Publication number
FR2244218A1
FR2244218A1 FR7427922A FR7427922A FR2244218A1 FR 2244218 A1 FR2244218 A1 FR 2244218A1 FR 7427922 A FR7427922 A FR 7427922A FR 7427922 A FR7427922 A FR 7427922A FR 2244218 A1 FR2244218 A1 FR 2244218A1
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.)
Granted
Application number
FR7427922A
Other versions
FR2244218B1 (fr
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.)
RFT MESSELEKTRONIK OTTO SCHON DL
RFT MESSELEKTRONIK DRESDEN VEB
Original Assignee
RFT MESSELEKTRONIK OTTO SCHON DL
RFT MESSELEKTRONIK DRESDEN VEB
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 RFT MESSELEKTRONIK OTTO SCHON DL, RFT MESSELEKTRONIK DRESDEN VEB filed Critical RFT MESSELEKTRONIK OTTO SCHON DL
Publication of FR2244218A1 publication Critical patent/FR2244218A1/fr
Application granted granted Critical
Publication of FR2244218B1 publication Critical patent/FR2244218B1/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

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)
FR7427922A 1973-09-17 1974-08-12 Expired FR2244218B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD173546A DD106728A1 (fr) 1973-09-17 1973-09-17

Publications (2)

Publication Number Publication Date
FR2244218A1 true FR2244218A1 (fr) 1975-04-11
FR2244218B1 FR2244218B1 (fr) 1978-01-27

Family

ID=5492798

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427922A Expired FR2244218B1 (fr) 1973-09-17 1974-08-12

Country Status (6)

Country Link
CH (1) CH586437A5 (fr)
DD (1) DD106728A1 (fr)
DE (1) DE2423045B2 (fr)
FR (1) FR2244218B1 (fr)
SE (1) SE392979B (fr)
SU (1) SU587884A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372510A1 (fr) * 1976-11-29 1978-06-23 Cerberus Ag Chambre d'ionisation et son utilisation
FR2373155A1 (fr) * 1976-12-01 1978-06-30 Cerberus Ag Chambre d'ionisation et son utilisation
FR2393303A1 (fr) * 1976-07-02 1978-12-29 Chloride Group Ltd Detecteur a chambre d'ionisation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234399Y2 (fr) * 1980-03-31 1987-09-02
CN110782620A (zh) * 2019-10-25 2020-02-11 上海明厦物联网科技有限公司 一种提高烟雾探测器灵敏度和响应速度的装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393303A1 (fr) * 1976-07-02 1978-12-29 Chloride Group Ltd Detecteur a chambre d'ionisation
FR2372510A1 (fr) * 1976-11-29 1978-06-23 Cerberus Ag Chambre d'ionisation et son utilisation
FR2373155A1 (fr) * 1976-12-01 1978-06-30 Cerberus Ag Chambre d'ionisation et son utilisation

Also Published As

Publication number Publication date
DE2423045A1 (de) 1975-03-20
CH586437A5 (fr) 1977-03-31
SE392979B (sv) 1977-04-25
FR2244218B1 (fr) 1978-01-27
DD106728A1 (fr) 1974-06-20
SE7407752L (fr) 1975-03-18
DE2423045B2 (de) 1978-10-26
SU587884A3 (ru) 1978-01-05

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Legal Events

Date Code Title Description
ST Notification of lapse