JPS53114475A - Photoelectric smoke detector - Google Patents

Photoelectric smoke detector

Info

Publication number
JPS53114475A
JPS53114475A JP2900577A JP2900577A JPS53114475A JP S53114475 A JPS53114475 A JP S53114475A JP 2900577 A JP2900577 A JP 2900577A JP 2900577 A JP2900577 A JP 2900577A JP S53114475 A JPS53114475 A JP S53114475A
Authority
JP
Japan
Prior art keywords
smoke detector
photoelectric smoke
photoelectric
detector
smoke
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
JP2900577A
Other languages
Japanese (ja)
Inventor
Katsura Yamamoto
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.)
Nittan Co Ltd
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
Priority to JP2900577A priority Critical patent/JPS53114475A/en
Publication of JPS53114475A publication Critical patent/JPS53114475A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP2900577A 1977-03-16 1977-03-16 Photoelectric smoke detector Pending JPS53114475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2900577A JPS53114475A (en) 1977-03-16 1977-03-16 Photoelectric smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2900577A JPS53114475A (en) 1977-03-16 1977-03-16 Photoelectric smoke detector

Publications (1)

Publication Number Publication Date
JPS53114475A true JPS53114475A (en) 1978-10-05

Family

ID=12264276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2900577A Pending JPS53114475A (en) 1977-03-16 1977-03-16 Photoelectric smoke detector

Country Status (1)

Country Link
JP (1) JPS53114475A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561339A (en) * 1980-02-05 1981-01-09 Secom Co Ltd Improved scattered-light type smoke sensor
JP2006011540A (en) * 2004-06-22 2006-01-12 Nittan Co Ltd Ionization type smoke sensor
JP2013235609A (en) * 2008-10-09 2013-11-21 Hochiki Corp Smoke detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511181A (en) * 1974-06-21 1976-01-07 Matsushita Electric Works Ltd TOKAKOSHIKIKEMURIKANCHIHOSHIKI
JPS5115487A (en) * 1974-07-29 1976-02-06 Matsushita Electric Works Ltd HIKARISANRANSHIKIKEMURIKANCHIKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511181A (en) * 1974-06-21 1976-01-07 Matsushita Electric Works Ltd TOKAKOSHIKIKEMURIKANCHIHOSHIKI
JPS5115487A (en) * 1974-07-29 1976-02-06 Matsushita Electric Works Ltd HIKARISANRANSHIKIKEMURIKANCHIKI

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561339A (en) * 1980-02-05 1981-01-09 Secom Co Ltd Improved scattered-light type smoke sensor
JP2006011540A (en) * 2004-06-22 2006-01-12 Nittan Co Ltd Ionization type smoke sensor
JP2013235609A (en) * 2008-10-09 2013-11-21 Hochiki Corp Smoke detector
US8941505B2 (en) 2008-10-09 2015-01-27 Hochiki Corporation Smoke detector

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