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NL147269B - DEVICE FOR TESTING AN IONIZATION SMOKE DETECTOR. - Google Patents

DEVICE FOR TESTING AN IONIZATION SMOKE DETECTOR.

Info

Publication number
NL147269B
NL147269B NL707007956A NL7007956A NL147269B NL 147269 B NL147269 B NL 147269B NL 707007956 A NL707007956 A NL 707007956A NL 7007956 A NL7007956 A NL 7007956A NL 147269 B NL147269 B NL 147269B
Authority
NL
Netherlands
Prior art keywords
testing
smoke detector
ionization smoke
ionization
detector
Prior art date
Application number
NL707007956A
Other languages
Dutch (nl)
Other versions
NL7007956A (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 NL7007956A publication Critical patent/NL7007956A/xx
Publication of NL147269B publication Critical patent/NL147269B/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-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
NL707007956A 1969-06-02 1970-06-02 DEVICE FOR TESTING AN IONIZATION SMOKE DETECTOR. NL147269B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4252669 1969-06-02
JP7158669 1969-09-11
JP7897469 1969-10-04
JP7897569 1969-10-04

Publications (2)

Publication Number Publication Date
NL7007956A NL7007956A (en) 1970-12-04
NL147269B true NL147269B (en) 1975-09-15

Family

ID=27461210

Family Applications (1)

Application Number Title Priority Date Filing Date
NL707007956A NL147269B (en) 1969-06-02 1970-06-02 DEVICE FOR TESTING AN IONIZATION SMOKE DETECTOR.

Country Status (3)

Country Link
US (1) US3657713A (en)
GB (1) GB1308242A (en)
NL (1) NL147269B (en)

Families Citing this family (10)

* 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
CA1148279A (en) * 1979-12-14 1983-06-14 Andreas Scheidweiler Ionization smoke detector with increased operational reliability
JPS6017157B2 (en) * 1981-02-25 1985-05-01 ニツタン株式会社 Selective actuatable fire detector
US4481502A (en) * 1982-03-26 1984-11-06 Dawson N Rick Central smoke alarm and annunciator
US4538137A (en) * 1983-01-20 1985-08-27 Nittan Company, Limited Fire detector
US4595914A (en) * 1983-04-11 1986-06-17 Pittway Corporation Self-testing combustion products detector
US5546074A (en) * 1993-08-19 1996-08-13 Sentrol, Inc. Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
US6501810B1 (en) 1998-10-13 2002-12-31 Agere Systems Inc. Fast frame synchronization
US7489136B1 (en) * 2005-08-04 2009-02-10 Nu-Trek, Inc. Apparatus and method of detecting radiation
JP4446290B2 (en) * 2006-03-02 2010-04-07 日立工機株式会社 Electric tools and tabletop cutting machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH380594A (en) * 1960-11-02 1964-07-31 Securiton Ag Ionization fire alarm system
JPS446089Y1 (en) * 1966-03-30 1969-03-05

Also Published As

Publication number Publication date
DE2027064B2 (en) 1972-06-22
DE2027064A1 (en) 1971-01-21
GB1308242A (en) 1973-02-21
NL7007956A (en) 1970-12-04
US3657713A (en) 1972-04-18

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: NITTAN