JP2528862Y2 - 光電式煙感知器 - Google Patents

光電式煙感知器

Info

Publication number
JP2528862Y2
JP2528862Y2 JP1989147679U JP14767989U JP2528862Y2 JP 2528862 Y2 JP2528862 Y2 JP 2528862Y2 JP 1989147679 U JP1989147679 U JP 1989147679U JP 14767989 U JP14767989 U JP 14767989U JP 2528862 Y2 JP2528862 Y2 JP 2528862Y2
Authority
JP
Japan
Prior art keywords
light
dark box
smoke detector
receiving element
test lamp
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
JP1989147679U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0341395U (enExample
Inventor
義則 五十嵐
堀内　　智
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.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai 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 Nohmi Bosai Ltd filed Critical Nohmi Bosai Ltd
Priority to JP1989147679U priority Critical patent/JP2528862Y2/ja
Publication of JPH0341395U publication Critical patent/JPH0341395U/ja
Application granted granted Critical
Publication of JP2528862Y2 publication Critical patent/JP2528862Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
JP1989147679U 1989-05-12 1989-12-25 光電式煙感知器 Expired - Fee Related JP2528862Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989147679U JP2528862Y2 (ja) 1989-05-12 1989-12-25 光電式煙感知器

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1-53918 1989-05-12
JP5391889 1989-05-12
JP1989147679U JP2528862Y2 (ja) 1989-05-12 1989-12-25 光電式煙感知器

Publications (2)

Publication Number Publication Date
JPH0341395U JPH0341395U (enExample) 1991-04-19
JP2528862Y2 true JP2528862Y2 (ja) 1997-03-12

Family

ID=31718114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989147679U Expired - Fee Related JP2528862Y2 (ja) 1989-05-12 1989-12-25 光電式煙感知器

Country Status (1)

Country Link
JP (1) JP2528862Y2 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5637718B2 (ja) * 2010-03-31 2014-12-10 能美防災株式会社 光電式煙感知器
JP5637717B2 (ja) * 2010-03-31 2014-12-10 能美防災株式会社 光電式煙感知器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6448057A (en) * 1987-08-18 1989-02-22 Dainippon Screen Mfg Printing device
JPH02227800A (ja) * 1989-02-28 1990-09-10 Hochiki Corp 光電式煙感知器

Also Published As

Publication number Publication date
JPH0341395U (enExample) 1991-04-19

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees