JPS4970691A - - Google Patents

Info

Publication number
JPS4970691A
JPS4970691A JP48080012A JP8001273A JPS4970691A JP S4970691 A JPS4970691 A JP S4970691A JP 48080012 A JP48080012 A JP 48080012A JP 8001273 A JP8001273 A JP 8001273A JP S4970691 A JPS4970691 A JP S4970691A
Authority
JP
Japan
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.)
Pending
Application number
JP48080012A
Other languages
Japanese (ja)
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 JPS4970691A publication Critical patent/JPS4970691A/ja
Pending 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
JP48080012A 1972-07-17 1973-07-17 Pending JPS4970691A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1065572 1972-07-17

Publications (1)

Publication Number Publication Date
JPS4970691A true JPS4970691A (xx) 1974-07-09

Family

ID=4365446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48080012A Pending JPS4970691A (xx) 1972-07-17 1973-07-17

Country Status (19)

Country Link
US (1) US3909813A (xx)
JP (1) JPS4970691A (xx)
AT (1) AT339777B (xx)
AU (1) AU474603B2 (xx)
BE (1) BE801719A (xx)
BR (1) BR7305317D0 (xx)
CA (1) CA1018680A (xx)
CH (1) CH547532A (xx)
DE (1) DE2328872C3 (xx)
DK (1) DK138714B (xx)
ES (1) ES415905A1 (xx)
FI (1) FI59498C (xx)
FR (1) FR2193224B1 (xx)
GB (1) GB1412164A (xx)
HK (1) HK57380A (xx)
IT (1) IT988800B (xx)
NO (1) NO136269C (xx)
SE (1) SE392357B (xx)
ZA (1) ZA734853B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111091U (xx) * 1974-07-10 1976-01-27
JPS5150786A (ja) * 1974-10-29 1976-05-04 Mitsubishi Electric Corp Ionkashikikemuritanchiki
JPS5555752U (xx) * 1978-10-12 1980-04-15
JPH0259461U (xx) * 1988-10-21 1990-05-01

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142999A (en) * 1976-05-24 1977-11-29 Nohmi Bosai Kogyo Co Ltd Fire alarm facility
DE2707409C2 (de) * 1977-02-21 1985-02-21 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Ionisationsbrandmelder
US4207558A (en) * 1978-04-03 1980-06-10 Pittway Corporation Interconnection circuit for a plurality of alarm units
USRE30620E (en) * 1978-07-03 1981-05-19 P. R. Mallory & Co. Inc. High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
CH629905A5 (de) * 1978-07-17 1982-05-14 Cerberus Ag Gas- und/oder brandmeldeanlage.
US4223303A (en) * 1978-12-11 1980-09-16 General Electric Company Alarm devices for interconnected multi-device systems
US4401978A (en) * 1979-02-21 1983-08-30 The Gamewell Corporation Combination detector
EP0039761A3 (de) * 1980-05-09 1981-11-25 Cerberus Ag Verfahren zur Brandmeldung und Brandmeldeanlage
JPH079680B2 (ja) * 1985-04-01 1995-02-01 ホーチキ株式会社 アナログ火災報知装置
CH669859A5 (xx) * 1986-06-03 1989-04-14 Cerberus Ag
EP0338218B1 (de) * 1988-03-30 1993-09-15 Cerberus Ag Verfahren zur Brandfrüherkennung
US6753786B1 (en) 2000-08-11 2004-06-22 Walter Kidde Portable Equipment, Inc. Microprocessor-based combination smoke and carbon monoxide detector having intelligent hush feature
US7068177B2 (en) * 2002-09-19 2006-06-27 Honeywell International, Inc. Multi-sensor device and methods for fire detection
US20080030352A1 (en) * 2006-02-27 2008-02-07 Thorn Security Limited Methods and systems for gas detection
CA2926811C (en) 2013-10-07 2023-03-21 Google Inc. Smart-home hazard detector providing context specific features and/or pre-alarm configurations
US9685061B2 (en) 2015-05-20 2017-06-20 Google Inc. Event prioritization and user interfacing for hazard detection in multi-room smart-home environment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665441A (en) * 1970-09-14 1972-05-23 Gen Signal Corp Method and apparatus for detecting aerosols

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111091U (xx) * 1974-07-10 1976-01-27
JPS5617815Y2 (xx) * 1974-07-10 1981-04-24
JPS5150786A (ja) * 1974-10-29 1976-05-04 Mitsubishi Electric Corp Ionkashikikemuritanchiki
JPS5555752U (xx) * 1978-10-12 1980-04-15
JPH0259461U (xx) * 1988-10-21 1990-05-01

Also Published As

Publication number Publication date
IT988800B (it) 1975-04-30
NO136269C (no) 1977-08-17
DE2328872B2 (de) 1980-05-14
CA1018680A (en) 1977-10-04
FI59498C (fi) 1981-08-10
AT339777B (de) 1977-11-10
SE392357B (sv) 1977-03-21
HK57380A (en) 1980-10-16
CH547532A (de) 1974-03-29
BE801719A (fr) 1973-10-15
AU474603B2 (en) 1976-07-29
ES415905A1 (es) 1976-02-01
NO136269B (xx) 1977-05-02
ATA456073A (de) 1977-02-15
US3909813A (en) 1975-09-30
BR7305317D0 (pt) 1974-08-22
DK138714C (xx) 1979-03-19
DE2328872A1 (de) 1974-01-31
GB1412164A (en) 1975-10-29
FR2193224A1 (xx) 1974-02-15
DE2328872C3 (de) 1981-01-08
FR2193224B1 (xx) 1978-12-29
ZA734853B (en) 1974-06-26
AU5798673A (en) 1975-01-16
FI59498B (fi) 1981-04-30
DK138714B (da) 1978-10-16

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