NL7404783A - - Google Patents

Info

Publication number
NL7404783A
NL7404783A NL7404783A NL7404783A NL7404783A NL 7404783 A NL7404783 A NL 7404783A NL 7404783 A NL7404783 A NL 7404783A NL 7404783 A NL7404783 A NL 7404783A NL 7404783 A NL7404783 A NL 7404783A
Authority
NL
Netherlands
Application number
NL7404783A
Other versions
NL177633B (en
NL177633C (en
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 NL7404783A publication Critical patent/NL7404783A/xx
Publication of NL177633B publication Critical patent/NL177633B/en
Application granted granted Critical
Publication of NL177633C publication Critical patent/NL177633C/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
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
NLAANVRAGE7404783,A 1973-04-17 1974-04-08 IONIZATION FIRE ALARM. NL177633C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH551973A CH551057A (en) 1973-04-17 1973-04-17 IONIZATION ALARM.

Publications (3)

Publication Number Publication Date
NL7404783A true NL7404783A (en) 1974-10-21
NL177633B NL177633B (en) 1985-05-17
NL177633C NL177633C (en) 1985-10-16

Family

ID=4294978

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7404783,A NL177633C (en) 1973-04-17 1974-04-08 IONIZATION FIRE ALARM.

Country Status (23)

Country Link
US (1) US3908957A (en)
JP (1) JPS49131798A (en)
BE (1) BE813068A (en)
BR (1) BR7403018D0 (en)
CA (1) CA998783A (en)
CH (1) CH551057A (en)
CS (1) CS216229B2 (en)
DD (1) DD111483A5 (en)
DE (1) DE2415479C3 (en)
DK (1) DK150415C (en)
ES (1) ES424918A1 (en)
FI (1) FI61768C (en)
FR (1) FR2226714B1 (en)
GB (1) GB1430891A (en)
HU (1) HU175210B (en)
IL (1) IL44507A (en)
IT (1) IT1006402B (en)
NL (1) NL177633C (en)
NO (1) NO139581C (en)
PL (1) PL90429B1 (en)
SE (1) SE396491B (en)
YU (1) YU35685B (en)
ZA (1) ZA742077B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652970C3 (en) * 1976-11-22 1979-09-06 Hartwig Ing.(Grad.) 2409 Scharbeutz Beyersdorf Ionization fire detectors
US4150373A (en) * 1977-01-27 1979-04-17 Ried Jr Louis Ionization particle detector
JPS6234399Y2 (en) * 1980-03-31 1987-09-02
CH648943A5 (en) * 1980-05-09 1985-04-15 Cerberus Ag SMOKE DETECTOR.
US4439683A (en) * 1981-02-11 1984-03-27 General Signal Corporation Ionization smoke detector
US4488044A (en) * 1981-11-20 1984-12-11 Pittway Corporation Ionization chamber for smoke detector and the like
FR2523309A1 (en) * 1982-03-09 1983-09-16 Hugon Emile NEW CAPACITIVE SMOKE DETECTOR WITH INTERCHANGEABLE MODULES
US4529976A (en) * 1982-10-29 1985-07-16 Frederick M. Jameson Smoke detector with masking shield
JPH044316Y2 (en) * 1985-09-30 1992-02-07
FR2594953B1 (en) * 1986-02-25 1989-05-05 Lewiner Jacques SMOKE DETECTOR WITH IONIZATION CHAMBER
JPS63239592A (en) * 1987-03-27 1988-10-05 ホーチキ株式会社 Photoelectric type smoke sensor
EP0338218B1 (en) * 1988-03-30 1993-09-15 Cerberus Ag Early fire detection method
US5327119A (en) * 1989-12-22 1994-07-05 Hochiki Kabushiki Kaisha Ionizing smoke sensor
CH681932A5 (en) * 1990-12-04 1993-06-15 Cerberus Ag
AU667102B2 (en) * 1992-05-14 1996-03-07 Vision Systems Limited Gas sampling point for smoke/pollution detection systems
JPH07506671A (en) * 1992-05-14 1995-07-20 ビジョン　システムズ　インコーポレイティド Gas sampling tip for smoke/pollution detection systems
US5856784A (en) * 1997-04-23 1999-01-05 Pittway Corporation Low profile ionization chamber
US6057774A (en) * 1999-01-21 2000-05-02 Brk Brands, Inc. Smoke alarm with anti-dust screen
GB0213854D0 (en) * 2002-06-15 2002-07-24 Aea Technology Plc Radioactive sources
US9013316B2 (en) * 2011-07-28 2015-04-21 Finsecur Smoke detector
GB201219488D0 (en) 2012-10-30 2012-12-12 Univ Sussex Apparatus for sensing ionic current and ionising radiation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319069A (en) * 1964-08-27 1967-05-09 American District Telegraph Co Smoke detecting radiation sensitive fire alarm system
CH475614A (en) * 1968-06-18 1969-07-15 Cerberus Ag Werke Fuer Elektro Ionization fire alarms
GB1277091A (en) * 1968-07-11 1972-06-07 Nittan Co Ltd Ionization type smoke detectors
CH486082A (en) * 1969-05-19 1970-02-15 Cerberus Ag Ionization fire alarms
CH491449A (en) * 1969-05-19 1970-05-31 Cerberus Ag Smoke detector arrangement with at least one smoke measuring chamber
CH508251A (en) * 1970-07-23 1971-05-31 Cerberus Ag Ionization fire alarms
US3728706A (en) * 1970-09-28 1973-04-17 Gen Signal Corp System for indicating aerosols in the atmosphere
BE793205A (en) * 1971-12-30 1973-04-16 Preussag Ag Feuerschutz IONIZATION FIRE ALARM

Also Published As

Publication number Publication date
NO139581B (en) 1978-12-27
BE813068A (en) 1974-07-15
BR7403018D0 (en) 1974-11-19
YU89174A (en) 1980-09-25
FI61768B (en) 1982-05-31
HU175210B (en) 1980-06-28
PL90429B1 (en) 1977-01-31
DK150415C (en) 1987-07-13
IT1006402B (en) 1976-09-30
DD111483A5 (en) 1975-02-12
IL44507A0 (en) 1974-06-30
FI61768C (en) 1982-09-10
FR2226714A1 (en) 1974-11-15
DK150415B (en) 1987-02-23
CA998783A (en) 1976-10-19
DE2415479A1 (en) 1974-11-14
NL177633B (en) 1985-05-17
DE2415479C3 (en) 1987-12-03
US3908957A (en) 1975-09-30
AU6753274A (en) 1975-10-09
CS216229B2 (en) 1982-10-29
SE396491B (en) 1977-09-19
ZA742077B (en) 1975-04-30
YU35685B (en) 1981-04-30
NO139581C (en) 1979-04-04
NL177633C (en) 1985-10-16
JPS49131798A (en) 1974-12-17
CH551057A (en) 1974-06-28
DE2415479B2 (en) 1980-09-04
ES424918A1 (en) 1976-05-16
FR2226714B1 (en) 1979-03-16
GB1430891A (en) 1976-04-07
IL44507A (en) 1977-07-31
NO741357L (en) 1974-10-18

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee