FI55731C - Alarmanordning - Google Patents

Alarmanordning

Info

Publication number
FI55731C
FI55731C FI3738/69A FI373869A FI55731C FI 55731 C FI55731 C FI 55731C FI 3738/69 A FI3738/69 A FI 3738/69A FI 373869 A FI373869 A FI 373869A FI 55731 C FI55731 C FI 55731C
Authority
FI
Finland
Prior art keywords
alarmanordning
Prior art date
Application number
FI3738/69A
Other languages
English (en)
Finnish (fi)
Other versions
FI55731B (fi
Inventor
Takeo Arima
Original Assignee
Hochiki Co
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 Hochiki Co filed Critical Hochiki Co
Application granted granted Critical
Publication of FI55731B publication Critical patent/FI55731B/fi
Publication of FI55731C publication Critical patent/FI55731C/fi

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
    • G08B17/10—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

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)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
FI3738/69A 1968-12-26 1969-12-23 Alarmanordning FI55731C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9561468 1968-12-26
JP3401269 1969-05-03

Publications (2)

Publication Number Publication Date
FI55731B FI55731B (fi) 1979-05-31
FI55731C true FI55731C (fi) 1979-09-10

Family

ID=26372801

Family Applications (1)

Application Number Title Priority Date Filing Date
FI3738/69A FI55731C (fi) 1968-12-26 1969-12-23 Alarmanordning

Country Status (9)

Country Link
US (1) US3733596A (cs)
CA (1) CA975856A (cs)
CH (1) CH519760A (cs)
DE (1) DE1964764B2 (cs)
FI (1) FI55731C (cs)
FR (1) FR2027150A1 (cs)
GB (1) GB1298083A (cs)
SE (1) SE355098B (cs)
YU (1) YU32739B (cs)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129292A (cs) * 1974-03-30 1975-10-13
US3961195A (en) * 1974-08-26 1976-06-01 Timothy John Newington Fire detector having means for heating the support member of an electrode to prevent formation of moisture thereon
JPS5538000Y2 (cs) * 1975-10-03 1980-09-05
DE2638068C3 (de) * 1976-08-24 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Brandmeldeanlage mit mehreren über eine Meldeschleife betreibbaren Meldern
DE2641489C2 (de) * 1976-09-15 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Übertragung von Meßwerten in einem Brandmeldesystem
JPS5760147Y2 (cs) * 1977-07-04 1982-12-22
US4207558A (en) * 1978-04-03 1980-06-10 Pittway Corporation Interconnection circuit for a plurality of alarm units
JPS5831275Y2 (ja) * 1978-08-26 1983-07-11 ホーチキ株式会社 イオン化式煙感知器
US5898369A (en) * 1996-01-18 1999-04-27 Godwin; Paul K. Communicating hazardous condition detector
US6588279B2 (en) * 2000-12-20 2003-07-08 Metrix Instruments Co. Impact transmitter for reciprocating machines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877453A (en) * 1956-01-17 1959-03-10 Jr Alfred L Mendenhall Smoke detecting device
NL108575C (cs) * 1957-02-19
US3018376A (en) * 1957-11-29 1962-01-23 Nat Res Corp Gas density measurement
BE638121A (cs) * 1962-10-12
US3555532A (en) * 1968-10-29 1971-01-12 Graham Stuart Corp Vapor or particle detection device

Also Published As

Publication number Publication date
CA975856A (en) 1975-10-07
GB1298083A (en) 1972-11-29
DE1964764B2 (de) 1977-11-03
DE1964764A1 (de) 1970-11-26
YU32739B (en) 1975-06-30
YU323069A (en) 1974-12-31
US3733596A (en) 1973-05-15
SE355098B (cs) 1973-04-02
CH519760A (fr) 1972-02-29
FI55731B (fi) 1979-05-31
FR2027150A1 (cs) 1970-09-25

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