JPS522483A - Smoke sensor apparatus for air conditioning duct - Google Patents

Smoke sensor apparatus for air conditioning duct

Info

Publication number
JPS522483A
JPS522483A JP50078128A JP7812875A JPS522483A JP S522483 A JPS522483 A JP S522483A JP 50078128 A JP50078128 A JP 50078128A JP 7812875 A JP7812875 A JP 7812875A JP S522483 A JPS522483 A JP S522483A
Authority
JP
Japan
Prior art keywords
smoke sensor
air conditioning
sensor apparatus
conditioning duct
constricted portion
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.)
Pending
Application number
JP50078128A
Other languages
Japanese (ja)
Inventor
Yukan Fujimoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP50078128A priority Critical patent/JPS522483A/en
Publication of JPS522483A publication Critical patent/JPS522483A/en
Pending 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
    • 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE:To provide an apparatus, which is simple in construction and operates reliably, by mounting a smoke sensor accommodated in a spherical cover provided at the bottom thereof with a hole in a cylinder serving as a ventilating duct and having a constricted portion in such a manner as to hold a gap with respect to the proximity of the suction side of the constricted portion.
JP50078128A 1975-06-23 1975-06-23 Smoke sensor apparatus for air conditioning duct Pending JPS522483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50078128A JPS522483A (en) 1975-06-23 1975-06-23 Smoke sensor apparatus for air conditioning duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50078128A JPS522483A (en) 1975-06-23 1975-06-23 Smoke sensor apparatus for air conditioning duct

Publications (1)

Publication Number Publication Date
JPS522483A true JPS522483A (en) 1977-01-10

Family

ID=13653233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50078128A Pending JPS522483A (en) 1975-06-23 1975-06-23 Smoke sensor apparatus for air conditioning duct

Country Status (1)

Country Link
JP (1) JPS522483A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921182U (en) * 1982-07-30 1984-02-08 トヨタ自動車株式会社 flow control valve
JPS61122553A (en) * 1984-11-20 1986-06-10 Shimizu Constr Co Ltd Smoke sensor for clean room

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921182U (en) * 1982-07-30 1984-02-08 トヨタ自動車株式会社 flow control valve
JPS61122553A (en) * 1984-11-20 1986-06-10 Shimizu Constr Co Ltd Smoke sensor for clean room

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