AU3054895A - Projected beam-type smoke detector and receiving unit - Google Patents

Projected beam-type smoke detector and receiving unit

Info

Publication number
AU3054895A
AU3054895A AU30548/95A AU3054895A AU3054895A AU 3054895 A AU3054895 A AU 3054895A AU 30548/95 A AU30548/95 A AU 30548/95A AU 3054895 A AU3054895 A AU 3054895A AU 3054895 A AU3054895 A AU 3054895A
Authority
AU
Australia
Prior art keywords
receiving unit
smoke detector
type smoke
projected beam
projected
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.)
Granted
Application number
AU30548/95A
Other versions
AU702941B2 (en
Inventor
Junichi Narumiya
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
Priority claimed from JP23086494A external-priority patent/JP3195881B2/en
Priority claimed from JP6230863A external-priority patent/JPH0896266A/en
Application filed by Hochiki Corp filed Critical Hochiki Corp
Publication of AU3054895A publication Critical patent/AU3054895A/en
Application granted granted Critical
Publication of AU702941B2 publication Critical patent/AU702941B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device

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)
  • Fire Alarms (AREA)
AU30548/95A 1994-09-27 1995-09-11 Projected beam-type smoke detector and receiving unit Ceased AU702941B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP23086494A JP3195881B2 (en) 1994-09-27 1994-09-27 Photoelectrically separated smoke detector and receiver
JP6-230864 1994-09-27
JP6230863A JPH0896266A (en) 1994-09-27 1994-09-27 Photoelectric separation type smoke sensor and receiver
JP6-230863 1994-09-27

Publications (2)

Publication Number Publication Date
AU3054895A true AU3054895A (en) 1996-04-18
AU702941B2 AU702941B2 (en) 1999-03-11

Family

ID=26529579

Family Applications (1)

Application Number Title Priority Date Filing Date
AU30548/95A Ceased AU702941B2 (en) 1994-09-27 1995-09-11 Projected beam-type smoke detector and receiving unit

Country Status (1)

Country Link
AU (1) AU702941B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827247A (en) * 1985-05-08 1989-05-02 Adt, Inc. Self-compensating projected-beam smoke detector
GB2274333B (en) * 1993-01-07 1996-12-11 Hochiki Co Smoke detecting apparatus capable of detecting both smoke and fine particles

Also Published As

Publication number Publication date
AU702941B2 (en) 1999-03-11

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