FR1565498A - - Google Patents

Info

Publication number
FR1565498A
FR1565498A FR139945A FR1565498DA FR1565498A FR 1565498 A FR1565498 A FR 1565498A FR 139945 A FR139945 A FR 139945A FR 1565498D A FR1565498D A FR 1565498DA FR 1565498 A FR1565498 A FR 1565498A
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
FR139945A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR1565498A publication Critical patent/FR1565498A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)
FR139945A 1968-02-15 1968-02-15 Expired FR1565498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR139945 1968-02-15

Publications (1)

Publication Number Publication Date
FR1565498A true FR1565498A (en) 1969-05-02

Family

ID=8646019

Family Applications (1)

Application Number Title Priority Date Filing Date
FR139945A Expired FR1565498A (en) 1968-02-15 1968-02-15

Country Status (11)

Country Link
US (1) US3621262A (en)
AT (1) AT293920B (en)
BE (1) BE727699A (en)
CA (1) CA929251A (en)
CH (1) CH486746A (en)
DE (1) DE1906075C3 (en)
ES (1) ES363669A1 (en)
FR (1) FR1565498A (en)
GB (1) GB1255221A (en)
NL (1) NL164981C (en)
SE (1) SE344254B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102178A1 (en) * 1970-08-11 1972-04-07 Pucill Peter

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136119B1 (en) * 1971-04-15 1976-10-06
JPS5512635B2 (en) * 1972-07-26 1980-04-03
US3775762A (en) * 1972-09-15 1973-11-27 Us Air Force Gas multiplication ultraviolet detector system for fire detection
FR2257118B1 (en) * 1974-01-04 1976-11-26 Commissariat Energie Atomique
JPS5231699A (en) * 1975-07-25 1977-03-10 Hochiki Corp Fire senser
DE2614487C2 (en) * 1976-04-03 1983-06-23 Total Feuerschutz GmbH, 6802 Ladenburg Circuit arrangement for evaluating a random pulse sequence from a radiation-sensitive gas discharge detector
JPS52153759A (en) * 1976-06-17 1977-12-21 Hochiki Co Storage type detector
US4162425A (en) * 1977-06-30 1979-07-24 Detector Electronics Corporation Ultraviolet detection tube quenching circuitry
JPH0648293B2 (en) * 1983-03-18 1994-06-22 和芙 橋本 Automatic measurement and alarm device for radioactivity
US4521120A (en) * 1983-09-15 1985-06-04 The United States Of America As Represented By The Secretary Of Agriculture Forest fire rate of spread with timers method
GB2199656B (en) * 1987-01-07 1990-10-17 Graviner Ltd Detection of electromagnetic radiation
DE3706986A1 (en) * 1987-03-04 1988-09-15 Preussag Ag Feuerschutz Method for evaluating the UV component in the flame spectrum by means of an electronic flame detector
US6600425B1 (en) * 2002-03-19 2003-07-29 Elite Access Systems, Inc. Method and apparatus for detecting and recording episodic overloads in a circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175165A (en) * 1962-06-29 1965-03-23 Edward S Dayhoff Light controlled variable frequency pulse generator
US3393319A (en) * 1965-09-30 1968-07-16 Bausch & Lomb Photoelectric circuit for counting light pulses above a minimium value

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102178A1 (en) * 1970-08-11 1972-04-07 Pucill Peter

Also Published As

Publication number Publication date
DE1906075B2 (en) 1973-07-26
DE1906075C3 (en) 1974-02-21
SE344254B (en) 1972-04-04
CA929251A (en) 1973-06-26
BE727699A (en) 1969-07-01
CH486746A (en) 1970-02-28
US3621262A (en) 1971-11-16
DE1906075A1 (en) 1969-09-04
NL164981B (en) 1980-09-15
NL6901997A (en) 1969-08-19
AT293920B (en) 1971-10-25
ES363669A1 (en) 1971-01-01
GB1255221A (en) 1971-12-01
NL164981C (en) 1981-02-16

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Legal Events

Date Code Title Description
ST Notification of lapse