FR2647217B1 - ION TYPE SMOKE SENSOR - Google Patents

ION TYPE SMOKE SENSOR

Info

Publication number
FR2647217B1
FR2647217B1 FR9006365A FR9006365A FR2647217B1 FR 2647217 B1 FR2647217 B1 FR 2647217B1 FR 9006365 A FR9006365 A FR 9006365A FR 9006365 A FR9006365 A FR 9006365A FR 2647217 B1 FR2647217 B1 FR 2647217B1
Authority
FR
France
Prior art keywords
smoke sensor
ion type
type smoke
ion
sensor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR9006365A
Other languages
French (fr)
Other versions
FR2647217A1 (en
Inventor
Koizumi Satoru
Nagashima Tetsuya
Hirai Yoshihito
Kaminaka Yoshinori
Matsushita Fiji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hochiki Corp
Original Assignee
Hochiki Corp
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 Hochiki Corp filed Critical Hochiki Corp
Publication of FR2647217A1 publication Critical patent/FR2647217A1/en
Application granted granted Critical
Publication of FR2647217B1 publication Critical patent/FR2647217B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
FR9006365A 1989-05-22 1990-05-22 ION TYPE SMOKE SENSOR Expired - Fee Related FR2647217B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1128585A JPH02307198A (en) 1989-05-22 1989-05-22 Ionization type smoke sensor

Publications (2)

Publication Number Publication Date
FR2647217A1 FR2647217A1 (en) 1990-11-23
FR2647217B1 true FR2647217B1 (en) 1995-02-17

Family

ID=14988393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9006365A Expired - Fee Related FR2647217B1 (en) 1989-05-22 1990-05-22 ION TYPE SMOKE SENSOR

Country Status (9)

Country Link
JP (1) JPH02307198A (en)
AT (1) AT397878B (en)
AU (1) AU616844B2 (en)
CH (1) CH683465A5 (en)
DE (1) DE4016231C2 (en)
FI (1) FI902472A0 (en)
FR (1) FR2647217B1 (en)
GB (1) GB2233818B (en)
NO (1) NO300945B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568048A (en) * 1968-01-19 1969-05-23
CH563044A5 (en) * 1972-12-01 1975-06-13 Universal Det S A R L
JPS5175692A (en) * 1974-12-27 1976-06-30 Mitsubishi Metal Corp OSHOKUCHAKUSHOKUYOGANRYO OYOBISONOSEIZOHO
CA1115860A (en) * 1977-11-18 1982-01-05 Dennis W.S. Smout Smoke detectors
GB2014782B (en) * 1978-01-05 1982-06-23 Sound Diffusion Ltd Ionization smoke detectors
JPS5831275Y2 (en) * 1978-08-26 1983-07-11 ホーチキ株式会社 ionization smoke detector
JPH01102991U (en) * 1987-12-26 1989-07-12
US4937562A (en) * 1987-12-26 1990-06-26 Hochiki Corp. Moisture-proof ionization smoke detector

Also Published As

Publication number Publication date
AU616844B2 (en) 1991-11-07
NO902239D0 (en) 1990-05-21
GB9011326D0 (en) 1990-07-11
DE4016231C2 (en) 1998-12-10
NO902239L (en) 1990-11-23
AT397878B (en) 1994-07-25
FR2647217A1 (en) 1990-11-23
CH683465A5 (en) 1994-03-15
AU5511490A (en) 1990-11-22
ATA112290A (en) 1993-11-15
DE4016231A1 (en) 1990-11-29
JPH02307198A (en) 1990-12-20
GB2233818A (en) 1991-01-16
FI902472A0 (en) 1990-05-18
NO300945B1 (en) 1997-08-18
GB2233818B (en) 1993-09-22

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Legal Events

Date Code Title Description
ST Notification of lapse