JPS5657943A - Smoke sensing system - Google Patents

Smoke sensing system

Info

Publication number
JPS5657943A
JPS5657943A JP13460279A JP13460279A JPS5657943A JP S5657943 A JPS5657943 A JP S5657943A JP 13460279 A JP13460279 A JP 13460279A JP 13460279 A JP13460279 A JP 13460279A JP S5657943 A JPS5657943 A JP S5657943A
Authority
JP
Japan
Prior art keywords
feed voltage
voltage
smoke
circuit
feed
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
JP13460279A
Other languages
English (en)
Inventor
Kuniharu Tatezuki
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP13460279A priority Critical patent/JPS5657943A/ja
Publication of JPS5657943A publication Critical patent/JPS5657943A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Emergency Alarm Devices (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP13460279A 1979-10-15 1979-10-15 Smoke sensing system Pending JPS5657943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13460279A JPS5657943A (en) 1979-10-15 1979-10-15 Smoke sensing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13460279A JPS5657943A (en) 1979-10-15 1979-10-15 Smoke sensing system

Publications (1)

Publication Number Publication Date
JPS5657943A true JPS5657943A (en) 1981-05-20

Family

ID=15132227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13460279A Pending JPS5657943A (en) 1979-10-15 1979-10-15 Smoke sensing system

Country Status (1)

Country Link
JP (1) JPS5657943A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818797A (ja) * 1981-07-23 1983-02-03 松下電工株式会社 報知装置
JPS6146690U (ja) * 1984-08-30 1986-03-28 ホーチキ株式会社 蓄積型火災報知受信機
JPS6146692U (ja) * 1984-08-25 1986-03-28 松下電工株式会社 火報システム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229796A (en) * 1975-09-01 1977-03-05 Matsushita Electric Works Ltd Smoke detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229796A (en) * 1975-09-01 1977-03-05 Matsushita Electric Works Ltd Smoke detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818797A (ja) * 1981-07-23 1983-02-03 松下電工株式会社 報知装置
JPH0248954B2 (ja) * 1981-07-23 1990-10-26 Matsushita Electric Works Ltd
JPS6146692U (ja) * 1984-08-25 1986-03-28 松下電工株式会社 火報システム
JPS6146690U (ja) * 1984-08-30 1986-03-28 ホーチキ株式会社 蓄積型火災報知受信機
JPH0512867Y2 (ja) * 1984-08-30 1993-04-05

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