JPS57795A - Method of detecting and warning gas leakage - Google Patents

Method of detecting and warning gas leakage

Info

Publication number
JPS57795A
JPS57795A JP7427180A JP7427180A JPS57795A JP S57795 A JPS57795 A JP S57795A JP 7427180 A JP7427180 A JP 7427180A JP 7427180 A JP7427180 A JP 7427180A JP S57795 A JPS57795 A JP S57795A
Authority
JP
Japan
Prior art keywords
detecting
gas leakage
warning gas
warning
leakage
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
JP7427180A
Other languages
Japanese (ja)
Inventor
Kiyoshi Sasaki
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP7427180A priority Critical patent/JPS57795A/en
Publication of JPS57795A publication Critical patent/JPS57795A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)
JP7427180A 1980-06-04 1980-06-04 Method of detecting and warning gas leakage Pending JPS57795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7427180A JPS57795A (en) 1980-06-04 1980-06-04 Method of detecting and warning gas leakage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7427180A JPS57795A (en) 1980-06-04 1980-06-04 Method of detecting and warning gas leakage

Publications (1)

Publication Number Publication Date
JPS57795A true JPS57795A (en) 1982-01-05

Family

ID=13542281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7427180A Pending JPS57795A (en) 1980-06-04 1980-06-04 Method of detecting and warning gas leakage

Country Status (1)

Country Link
JP (1) JPS57795A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58135445A (en) * 1982-02-06 1983-08-12 Hitachi Ltd Humidity detector
JPS62289753A (en) * 1986-06-09 1987-12-16 Toshiba Corp Gas concentration detecting device
JPS62294949A (en) * 1986-06-13 1987-12-22 Matsushita Electric Ind Co Ltd Gas detector
JPS643799A (en) * 1987-06-26 1989-01-09 Fuji Electric Co Ltd Gas leak alarm

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159199A (en) * 1978-06-07 1979-12-15 Hochiki Co Fire sensor
JPS5530794A (en) * 1978-05-01 1980-03-04 Anglo Amer Corp South Africa Method and apparatus for detecting ratio of signal variation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530794A (en) * 1978-05-01 1980-03-04 Anglo Amer Corp South Africa Method and apparatus for detecting ratio of signal variation
JPS54159199A (en) * 1978-06-07 1979-12-15 Hochiki Co Fire sensor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58135445A (en) * 1982-02-06 1983-08-12 Hitachi Ltd Humidity detector
JPH051422B2 (en) * 1982-02-06 1993-01-08 Hitachi Ltd
JPS62289753A (en) * 1986-06-09 1987-12-16 Toshiba Corp Gas concentration detecting device
JPH0521498B2 (en) * 1986-06-09 1993-03-24 Tokyo Shibaura Electric Co
JPS62294949A (en) * 1986-06-13 1987-12-22 Matsushita Electric Ind Co Ltd Gas detector
JPS643799A (en) * 1987-06-26 1989-01-09 Fuji Electric Co Ltd Gas leak alarm

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