NL144410B - SMOKE DETECTOR CHAIN. - Google Patents

SMOKE DETECTOR CHAIN.

Info

Publication number
NL144410B
NL144410B NL707001934A NL7001934A NL144410B NL 144410 B NL144410 B NL 144410B NL 707001934 A NL707001934 A NL 707001934A NL 7001934 A NL7001934 A NL 7001934A NL 144410 B NL144410 B NL 144410B
Authority
NL
Netherlands
Prior art keywords
smoke detector
detector chain
chain
smoke
detector
Prior art date
Application number
NL707001934A
Other languages
Dutch (nl)
Other versions
NL7001934A (en
Original Assignee
Nittan 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of NL7001934A publication Critical patent/NL7001934A/xx
Publication of NL144410B publication Critical patent/NL144410B/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
NL707001934A 1969-04-04 1970-02-11 SMOKE DETECTOR CHAIN. NL144410B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44025730A JPS5147039B1 (en) 1969-04-04 1969-04-04

Publications (2)

Publication Number Publication Date
NL7001934A NL7001934A (en) 1970-10-06
NL144410B true NL144410B (en) 1974-12-16

Family

ID=12173907

Family Applications (1)

Application Number Title Priority Date Filing Date
NL707001934A NL144410B (en) 1969-04-04 1970-02-11 SMOKE DETECTOR CHAIN.

Country Status (11)

Country Link
JP (1) JPS5147039B1 (en)
AT (1) AT297544B (en)
BE (1) BE732651A (en)
CH (1) CH498457A (en)
DE (1) DE2004584B2 (en)
ES (1) ES375686A1 (en)
FR (1) FR2042047A5 (en)
GB (1) GB1269911A (en)
IL (1) IL33654A (en)
NL (1) NL144410B (en)
SE (1) SE350634B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN111951514A (en) * 2020-08-03 2020-11-17 深圳职业技术学院 Smog detection device based on image recognition

Also Published As

Publication number Publication date
DE2004584A1 (en) 1970-11-26
GB1269911A (en) 1972-04-06
IL33654A (en) 1973-08-29
NL7001934A (en) 1970-10-06
SE350634B (en) 1972-10-30
DE2004584B2 (en) 1971-12-23
BE732651A (en) 1969-10-16
CH498457A (en) 1970-10-31
IL33654A0 (en) 1970-03-22
AT297544B (en) 1972-03-27
FR2042047A5 (en) 1971-02-05
ES375686A1 (en) 1972-05-16
JPS5147039B1 (en) 1976-12-13

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: NITTAN