CH468682A - Fire alarm system - Google Patents

Fire alarm system

Info

Publication number
CH468682A
CH468682A CH903167A CH903167A CH468682A CH 468682 A CH468682 A CH 468682A CH 903167 A CH903167 A CH 903167A CH 903167 A CH903167 A CH 903167A CH 468682 A CH468682 A CH 468682A
Authority
CH
Switzerland
Prior art keywords
alarm system
fire alarm
fire
alarm
Prior art date
Application number
CH903167A
Other languages
German (de)
Inventor
Beat Dr Walthard
Original Assignee
Cerberus Ag
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 Cerberus Ag filed Critical Cerberus Ag
Priority to CH903167A priority Critical patent/CH468682A/en
Priority to AT682467A priority patent/AT275365B/en
Priority to SE06335/68A priority patent/SE328225B/xx
Priority to DE671766440A priority patent/DE1766440C3/en
Priority to NL6808477.A priority patent/NL165311C/en
Priority to US738046A priority patent/US3603949A/en
Priority to FR1569514D priority patent/FR1569514A/fr
Priority to GB1228931D priority patent/GB1228931A/en
Publication of CH468682A publication Critical patent/CH468682A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
CH903167A 1967-06-26 1967-06-26 Fire alarm system CH468682A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH903167A CH468682A (en) 1967-06-26 1967-06-26 Fire alarm system
AT682467A AT275365B (en) 1967-06-26 1967-07-24 Fire alarm system
SE06335/68A SE328225B (en) 1967-06-26 1968-05-10
DE671766440A DE1766440C3 (en) 1967-06-26 1968-05-24 Fire alarm system
NL6808477.A NL165311C (en) 1967-06-26 1968-06-17 FIRE NOTIFICATION SYSTEM.
US738046A US3603949A (en) 1967-06-26 1968-06-18 Fire alarm installation
FR1569514D FR1569514A (en) 1967-06-26 1968-06-25
GB1228931D GB1228931A (en) 1967-06-26 1968-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH903167A CH468682A (en) 1967-06-26 1967-06-26 Fire alarm system

Publications (1)

Publication Number Publication Date
CH468682A true CH468682A (en) 1969-02-15

Family

ID=4347556

Family Applications (1)

Application Number Title Priority Date Filing Date
CH903167A CH468682A (en) 1967-06-26 1967-06-26 Fire alarm system

Country Status (8)

Country Link
US (1) US3603949A (en)
AT (1) AT275365B (en)
CH (1) CH468682A (en)
DE (1) DE1766440C3 (en)
FR (1) FR1569514A (en)
GB (1) GB1228931A (en)
NL (1) NL165311C (en)
SE (1) SE328225B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454196A1 (en) * 1974-06-14 1976-01-02 Cerberus Ag FIRE ALARM

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702468A (en) * 1970-08-10 1972-11-07 Nittan Co Ltd Fire alarming system
SE402660B (en) * 1970-11-12 1978-07-10 Securitas Int Ab FIREPLACE FACILITY
US3748389A (en) * 1971-12-13 1973-07-24 Bell Telephone Labor Inc Alarm detection system
US3811126A (en) * 1972-06-07 1974-05-14 Smelting Refining And Mining C Alarm system
US4023152A (en) * 1973-10-01 1977-05-10 Matsushita Electric Works, Ltd. Ionization type smoke sensing device
US3997890A (en) * 1974-06-11 1976-12-14 Kendrick Jr Embry Mayes Alarm system with supervisory system to detect severing or bridging of detection switches
US3987319A (en) * 1974-12-05 1976-10-19 The United States Of America As Represented By The Secretary Of The Army Radiation-activated sensor
US3978461A (en) * 1975-05-12 1976-08-31 Firetek Corporation Three wire detection circuit
US3991413A (en) * 1975-06-23 1976-11-09 Berger Philip H Constant current detector system
US4097851A (en) * 1976-07-19 1978-06-27 Pittway Corporation Sensitivity compensated fire detector
CH606916A5 (en) * 1976-10-22 1978-11-15 Landis & Gyr Ag
DE2707409C2 (en) * 1977-02-21 1985-02-21 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Ionization fire detector
DE2713280C3 (en) * 1977-03-25 1986-10-23 Esser Sicherheitstechnik GmbH & Co KG, 4040 Neuss Function-testable fire alarm system
DE2939494B2 (en) * 1979-09-28 1981-07-02 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for intrusion or fire alarm systems
US4385287A (en) * 1979-12-07 1983-05-24 Securicor Granley Systems Limited Multiple alarm condition detection and signalling
CH651688A5 (en) * 1980-06-23 1985-09-30 Cerberus Ag METHOD FOR TRANSMITTING MEASURED VALUES IN A FIRE DETECTING SYSTEM AND DEVICE FOR IMPLEMENTING THE METHOD.
US4481502A (en) * 1982-03-26 1984-11-06 Dawson N Rick Central smoke alarm and annunciator
GB2138570B (en) * 1983-04-19 1987-10-28 Emi Ltd Smoke detector
GB2149167B (en) * 1983-11-04 1987-04-08 Graviner Ltd Electrical circuit arrangements in fire alarms
US4916432A (en) * 1987-10-21 1990-04-10 Pittway Corporation Smoke and fire detection system communication
WO2004034348A1 (en) * 2002-10-04 2004-04-22 Valery Vasilievich Ovchinnikov Method for forming and transmitting signals
RU2232425C2 (en) * 2002-10-10 2004-07-10 Овчинников Валерий Васильевич Method of signal generation and transmission
US7365637B2 (en) * 2005-06-17 2008-04-29 Heathco Llc Reversible diode doorbell detection circuit
US7553152B2 (en) * 2005-06-23 2009-06-30 Honeywell International Inc. Flame detector trapezoidal excitation generator output control circuit and method
DE102005038602B4 (en) * 2005-08-16 2019-05-09 Robert Bosch Gmbh safety device
US8446285B2 (en) * 2008-02-08 2013-05-21 Siemens Industry, Inc. Methods and apparatus for controlling and testing a notification appliance circuit
CN106155861A (en) * 2015-04-22 2016-11-23 鸿富锦精密工业(武汉)有限公司 Electronic equipment warning circuit
CN107045762B (en) * 2017-04-14 2023-08-11 重庆和航科技股份有限公司 Electric fire remote monitoring dynamic early warning method and system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029420A (en) * 1957-02-25 1962-04-10 Kidde & Co Walter Network for monitoring alarm systems
US3176284A (en) * 1963-09-27 1965-03-30 Specialties Dev Corp System responsive to plural conditions with false indication prevention
US3351934A (en) * 1965-05-19 1967-11-07 Honeywell Inc Supervised alarm system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454196A1 (en) * 1974-06-14 1976-01-02 Cerberus Ag FIRE ALARM

Also Published As

Publication number Publication date
AT275365B (en) 1969-10-27
NL165311C (en) 1981-03-16
SE328225B (en) 1970-09-07
DE1766440B2 (en) 1974-10-03
DE1766440A1 (en) 1971-07-15
US3603949A (en) 1971-09-07
NL165311B (en) 1980-10-15
DE1766440C3 (en) 1979-03-08
NL6808477A (en) 1968-12-27
FR1569514A (en) 1969-05-30
GB1228931A (en) 1971-04-21

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