NL168976C - IONIZATION FIRE ALARM. - Google Patents

IONIZATION FIRE ALARM.

Info

Publication number
NL168976C
NL168976C NLAANVRAGE7008421,A NL7008421A NL168976C NL 168976 C NL168976 C NL 168976C NL 7008421 A NL7008421 A NL 7008421A NL 168976 C NL168976 C NL 168976C
Authority
NL
Netherlands
Prior art keywords
fire alarm
ionization fire
ionization
alarm
fire
Prior art date
Application number
NLAANVRAGE7008421,A
Other languages
Dutch (nl)
Other versions
NL7008421A (en
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
Publication of NL7008421A publication Critical patent/NL7008421A/xx
Application granted granted Critical
Publication of NL168976C publication Critical patent/NL168976C/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)
NLAANVRAGE7008421,A 1969-06-24 1970-06-10 IONIZATION FIRE ALARM. NL168976C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH966269A CH497755A (en) 1969-06-24 1969-06-24 Ionization fire alarms

Publications (2)

Publication Number Publication Date
NL7008421A NL7008421A (en) 1970-12-29
NL168976C true NL168976C (en) 1982-05-17

Family

ID=4354339

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7008421,A NL168976C (en) 1969-06-24 1970-06-10 IONIZATION FIRE ALARM.

Country Status (12)

Country Link
US (1) US3676680A (en)
BE (1) BE752058A (en)
CH (1) CH497755A (en)
DE (1) DE2029794C3 (en)
FR (1) FR2060523A5 (en)
GB (1) GB1291755A (en)
HK (1) HK10478A (en)
NL (1) NL168976C (en)
NO (1) NO125704B (en)
SE (1) SE354139B (en)
YU (1) YU33338B (en)
ZA (1) ZA704145B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO129270B (en) * 1970-05-16 1974-03-18 Preussag Ag Feuerschutz
CA933679A (en) * 1970-08-10 1973-09-11 Nittan Company Fire alarming system
US3964036A (en) * 1972-11-15 1976-06-15 Hochiki Corporation Ionization smoke detector co-used to issue fire alarm and detect ambient atmosphere
US3866195A (en) * 1973-05-07 1975-02-11 Fire Alert Company Combustion product detector and method of calibrating
US3906474A (en) * 1973-05-07 1975-09-16 Fire Alert Company Combustion products alarm
US4023152A (en) * 1973-10-01 1977-05-10 Matsushita Electric Works, Ltd. Ionization type smoke sensing device
US3944859A (en) * 1974-09-03 1976-03-16 Rca Corporation Bridge-balance detection circuit
USRE30117E (en) * 1975-07-25 1979-10-16 Cerberus Ag Ionization-type fire or smoke sensing system
US4038649A (en) * 1975-09-16 1977-07-26 Emhart Industries, Inc. Smoke detection alarm device
DE2713280C3 (en) * 1977-03-25 1986-10-23 Esser Sicherheitstechnik GmbH & Co KG, 4040 Neuss Function-testable fire alarm system
JPS583195Y2 (en) * 1977-10-20 1983-01-20 ツエルベルス・アクチェン・ゲゼルシャフト Ionic fire detector
DE3004753C2 (en) * 1980-02-08 1983-12-22 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Fire alarm device
NL180784C (en) * 1983-10-14 1987-04-16 Nederlanden Staat GAS SENSITIVE SENSOR.
US5189399A (en) * 1989-02-18 1993-02-23 Hartwig Beyersdorf Method of operating an ionization smoke alarm and ionization smoke alarm
DE3904979A1 (en) * 1989-02-18 1990-08-23 Beyersdorf Hartwig METHOD FOR OPERATING AN IONIZATION SMOKE DETECTOR AND IONIZATION SMOKE DETECTOR
DE4028167A1 (en) * 1990-09-05 1992-03-12 Esser Sicherheitstechnik Ionisation fire detector - has common electrode with FET device coupled by conductive material to electrode
US9437100B2 (en) * 2013-11-02 2016-09-06 Jeffrey D. Zwirn Supervising alarm notification devices
CN112946458B (en) * 2021-02-22 2024-01-12 重庆四联测控技术有限公司 Forced alarm current output system and method of pressure transmitter
CN114446002B (en) * 2022-01-17 2023-10-31 厦门理工学院 Fire on-line monitoring method, device, medium and system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646556A (en) * 1950-06-17 1953-07-21 C O Two Fire Equipment Co Supervised alarm system
JPS446089Y1 (en) * 1966-03-30 1969-03-05
US3514603A (en) * 1966-12-22 1970-05-26 Johnson Service Co Ionization chamber detection apparatus having a low voltage source means

Also Published As

Publication number Publication date
YU33338B (en) 1976-10-31
FR2060523A5 (en) 1971-06-18
CH497755A (en) 1970-10-15
HK10478A (en) 1978-03-03
BE752058A (en) 1970-12-01
NO125704B (en) 1972-10-16
ZA704145B (en) 1971-03-31
GB1291755A (en) 1972-10-04
DE2029794B2 (en) 1973-04-26
NL7008421A (en) 1970-12-29
SE354139B (en) 1973-02-26
DE2029794C3 (en) 1979-10-11
US3676680A (en) 1972-07-11
DE2029794A1 (en) 1971-01-07
YU157570A (en) 1976-04-30

Similar Documents

Publication Publication Date Title
DK130857B (en) Ionization fire alarm system.
DK129069B (en) Fire alarm system.
NL168976C (en) IONIZATION FIRE ALARM.
NL177633C (en) IONIZATION FIRE ALARM.
NL168975C (en) IONIZATION FIRE ALARM.
DK138714B (en) Ionization fire alarm means.
NL164791C (en) FIRE TUBE.
DK131251B (en) Fire alarm.
AT292899B (en) Double fire
NL162493C (en) IONIZATION FIRE ALARM.
NL164407C (en) IONIZATION FIRE ALARM.
DK122548B (en) Fire alarm.
CH539310A (en) Ionization fire alarm
NL145378B (en) IONIZATION FIRE ALARM.
CH489070A (en) Ionization fire alarms
NL150595B (en) IONIZATION SMOKE DETECTOR.
CH499329A (en) Fire alarm
SE392979B (en) IONIZATION FIRE ALARM
NL161280C (en) FIRE ALARM.
DK108484C (en) Electrical fire alarm system.
CH558059A (en) IONIZATION FIRE ALARM.
CH508252A (en) Fire alarm system
CH510310A (en) Fire alarm
AT320477B (en) Ionization fire alarms
DK139284B (en) Ion type fire alarm.