GB1265893A - - Google Patents

Info

Publication number
GB1265893A
GB1265893A GB1265893DA GB1265893A GB 1265893 A GB1265893 A GB 1265893A GB 1265893D A GB1265893D A GB 1265893DA GB 1265893 A GB1265893 A GB 1265893A
Authority
GB
United Kingdom
Prior art keywords
relay
fault
signal
smoke
alarm
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
Other languages
English (en)
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 filed Critical
Publication of GB1265893A publication Critical patent/GB1265893A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • 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

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
GB1265893D 1968-05-07 1969-05-05 Expired GB1265893A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR150798 1968-05-07

Publications (1)

Publication Number Publication Date
GB1265893A true GB1265893A (enExample) 1972-03-08

Family

ID=8649894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265893D Expired GB1265893A (enExample) 1968-05-07 1969-05-05

Country Status (6)

Country Link
BE (1) BE732466A (enExample)
CA (1) CA927527A (enExample)
DE (1) DE1922987A1 (enExample)
ES (1) ES366902A1 (enExample)
FR (1) FR1576497A (enExample)
GB (1) GB1265893A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2455042C1 (ru) * 2011-02-01 2012-07-10 Закрытое Акционерное Общество "Инженерный Центр Пожарной Робототехники "Эфэр" Автоматическая установка пожаротушения, увлажнения и очистки воздуха

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812362A (en) * 1973-07-02 1974-05-21 Honeywell Inc Smoke detector circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2455042C1 (ru) * 2011-02-01 2012-07-10 Закрытое Акционерное Общество "Инженерный Центр Пожарной Робототехники "Эфэр" Автоматическая установка пожаротушения, увлажнения и очистки воздуха

Also Published As

Publication number Publication date
ES366902A1 (es) 1971-03-16
DE1922987A1 (de) 1969-12-11
BE732466A (enExample) 1969-10-16
FR1576497A (enExample) 1969-08-01
CA927527A (en) 1973-05-29

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Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee