DE1964764B2 - Alarmvorrichtung - Google Patents

Alarmvorrichtung

Info

Publication number
DE1964764B2
DE1964764B2 DE19691964764 DE1964764A DE1964764B2 DE 1964764 B2 DE1964764 B2 DE 1964764B2 DE 19691964764 DE19691964764 DE 19691964764 DE 1964764 A DE1964764 A DE 1964764A DE 1964764 B2 DE1964764 B2 DE 1964764B2
Authority
DE
Germany
Prior art keywords
alarm
circuit
signal
output signal
amplifier circuit
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.)
Ceased
Application number
DE19691964764
Other languages
German (de)
English (en)
Other versions
DE1964764A1 (de
Inventor
Takeo Tokio Arima
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.)
Tokyo Hochiki Co Ltd
Original Assignee
Tokyo Hochiki Co Ltd
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 Tokyo Hochiki Co Ltd filed Critical Tokyo Hochiki Co Ltd
Publication of DE1964764A1 publication Critical patent/DE1964764A1/de
Publication of DE1964764B2 publication Critical patent/DE1964764B2/de
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00Details of radiation-measuring instruments
    • G01T7/12Provision for actuation of an alarm
    • G01T7/125Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11Actuation 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-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
DE19691964764 1968-12-26 1969-12-24 Alarmvorrichtung Ceased DE1964764B2 (de)

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
DE1964764A1 DE1964764A1 (de) 1970-11-26
DE1964764B2 true DE1964764B2 (de) 1977-11-03

Family

ID=26372801

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691964764 Ceased DE1964764B2 (de) 1968-12-26 1969-12-24 Alarmvorrichtung

Country Status (9)

Country Link
US (1) US3733596A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA975856A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH519760A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1964764B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FI (1) FI55731C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2027150A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1298083A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE355098B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
YU (1) YU32739B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641489A1 (de) * 1976-09-15 1978-03-16 Siemens Ag Verfahren zur uebertragung unterschiedlicher analoger messwerte an eine zentrale von mehreren kettenfoermig an einer meldelinie liegenden brandmeldern

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129292A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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
JPS5760147Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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
WO2002050554A2 (en) * 2000-12-20 2002-06-27 Metrix Instrument Company 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
NL224947A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1957-02-19
US3018376A (en) * 1957-11-29 1962-01-23 Nat Res Corp Gas density measurement
NL298945A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1962-10-12
US3555532A (en) * 1968-10-29 1971-01-12 Graham Stuart Corp Vapor or particle detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641489A1 (de) * 1976-09-15 1978-03-16 Siemens Ag Verfahren zur uebertragung unterschiedlicher analoger messwerte an eine zentrale von mehreren kettenfoermig an einer meldelinie liegenden brandmeldern

Also Published As

Publication number Publication date
CH519760A (fr) 1972-02-29
FI55731C (fi) 1979-09-10
GB1298083A (en) 1972-11-29
SE355098B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-04-02
FR2027150A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-09-25
CA975856A (en) 1975-10-07
FI55731B (fi) 1979-05-31
US3733596A (en) 1973-05-15
YU323069A (en) 1974-12-31
DE1964764A1 (de) 1970-11-26
YU32739B (en) 1975-06-30

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Legal Events

Date Code Title Description
BGA New person/name/address of the applicant
8235 Patent refused