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JPS5217794A - Gas leakage alarm - Google Patents

Gas leakage alarm

Info

Publication number
JPS5217794A
JPS5217794A JP9350375A JP9350375A JPS5217794A JP S5217794 A JPS5217794 A JP S5217794A JP 9350375 A JP9350375 A JP 9350375A JP 9350375 A JP9350375 A JP 9350375A JP S5217794 A JPS5217794 A JP S5217794A
Authority
JP
Japan
Prior art keywords
gas leakage
leakage alarm
detective
fluctuating
thermistor
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
JP9350375A
Other languages
Japanese (ja)
Inventor
Yasushi Suzuki
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.)
Hitachi Global Life Solutions Inc
Original Assignee
Hitachi Heating Appliances 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 Hitachi Heating Appliances Co Ltd filed Critical Hitachi Heating Appliances Co Ltd
Priority to JP9350375A priority Critical patent/JPS5217794A/en
Publication of JPS5217794A publication Critical patent/JPS5217794A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

PURPOSE: To provide a constant detective concentration regardless of fluctuating of supply voltage and atmospheric temperature, by detecting gas leakage by using a bridge including a gas detection element and a thermistor and transistors.
COPYRIGHT: (C)1977,JPO&Japio
JP9350375A 1975-07-31 1975-07-31 Gas leakage alarm Pending JPS5217794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9350375A JPS5217794A (en) 1975-07-31 1975-07-31 Gas leakage alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9350375A JPS5217794A (en) 1975-07-31 1975-07-31 Gas leakage alarm

Publications (1)

Publication Number Publication Date
JPS5217794A true JPS5217794A (en) 1977-02-09

Family

ID=14084138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9350375A Pending JPS5217794A (en) 1975-07-31 1975-07-31 Gas leakage alarm

Country Status (1)

Country Link
JP (1) JPS5217794A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180597U (en) * 1987-05-13 1988-11-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180597U (en) * 1987-05-13 1988-11-22

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