DE2025770C3 - Anordnung zum Feststellen entflammbaren Gases - Google Patents

Anordnung zum Feststellen entflammbaren Gases

Info

Publication number
DE2025770C3
DE2025770C3 DE2025770A DE2025770A DE2025770C3 DE 2025770 C3 DE2025770 C3 DE 2025770C3 DE 2025770 A DE2025770 A DE 2025770A DE 2025770 A DE2025770 A DE 2025770A DE 2025770 C3 DE2025770 C3 DE 2025770C3
Authority
DE
Germany
Prior art keywords
relay
gas
voltage
concentration
coils
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
Application number
DE2025770A
Other languages
German (de)
English (en)
Other versions
DE2025770A1 (de
DE2025770B2 (de
Inventor
Riichiro Hyogo Kobe Kasahara
Yuichi Higashiyodogawa Osaka Shimakawa
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.)
New Cosmos Electric Co Ltd
Original Assignee
New Cosmos Electric 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
Priority claimed from JP4978869U external-priority patent/JPS4810857Y1/ja
Priority claimed from JP5264269U external-priority patent/JPS4810858Y1/ja
Priority claimed from JP6608369U external-priority patent/JPS4838224Y1/ja
Application filed by New Cosmos Electric Co Ltd filed Critical New Cosmos Electric Co Ltd
Publication of DE2025770A1 publication Critical patent/DE2025770A1/de
Publication of DE2025770B2 publication Critical patent/DE2025770B2/de
Application granted granted Critical
Publication of DE2025770C3 publication Critical patent/DE2025770C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
DE2025770A 1969-05-28 1970-05-26 Anordnung zum Feststellen entflammbaren Gases Expired DE2025770C3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4978869U JPS4810857Y1 (enExample) 1969-05-28 1969-05-28
JP5264269U JPS4810858Y1 (enExample) 1969-06-05 1969-06-05
JP6608369U JPS4838224Y1 (enExample) 1969-07-11 1969-07-11

Publications (3)

Publication Number Publication Date
DE2025770A1 DE2025770A1 (de) 1970-12-03
DE2025770B2 DE2025770B2 (de) 1978-11-16
DE2025770C3 true DE2025770C3 (de) 1979-07-26

Family

ID=27293736

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2025770A Expired DE2025770C3 (de) 1969-05-28 1970-05-26 Anordnung zum Feststellen entflammbaren Gases

Country Status (3)

Country Link
US (1) US3609732A (enExample)
DE (1) DE2025770C3 (enExample)
FR (1) FR2050400A1 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786462A (en) * 1971-03-18 1974-01-15 Trw Inc Carbon monoxide alarm for automobiles
BE788001A (fr) * 1971-11-01 1973-02-26 T J Connelly Construction Cy I Circuit sensible a la fumee, avec batterie de secours
US3951603A (en) * 1972-07-08 1976-04-20 Hitachi, Ltd. Gas-sensor element and method for detecting reducing gas or oxygen gas
US3953173A (en) * 1972-07-08 1976-04-27 Hitachi, Ltd. Gas-sensor element and method for detecting oxidizable gas
GB1451231A (en) * 1973-03-30 1976-09-29 Nat Res Dev Gas sensitive devices
US3882478A (en) * 1973-05-14 1975-05-06 Malgard Corp Gas and smoke alarm
DE2337988B2 (de) * 1973-07-24 1978-11-30 C.S.S. Container Storage Service Establishment, Vaduz Vorrichtung zur Bestimmung des Alkoholgehaltes in der Atemluft
DE2437352C2 (de) * 1973-08-03 1984-11-22 Nohmi Bosai Kogyo Co., Ltd., Tokyo Vorrichtung zum Nachweis von Kohlenmonoxyd
DE2408218C3 (de) * 1974-02-21 1983-11-03 Ehlen, Karl Josef, Dr., 5000 Köln Schaltungsanordnung zum Nachweis von Gasen
US3879717A (en) * 1974-06-19 1975-04-22 K F Ind Inc Portable methane monitor and alarm system
NL182511C (nl) * 1974-08-27 1988-03-16 Westfaelische Berggewerkschaft Werkwijze voor de bepaling van het gehalte van koolmonoxyde in een gasmengsel door meting van de elektrische weerstand van een of meer metaaloxyde-halfgeleiders en meettoestel voor ten uitvoerlegging van de werkwijze.
US3930247A (en) * 1974-09-06 1975-12-30 Avco Corp Open screen smoke detector and circuit
US4001804A (en) * 1974-11-25 1977-01-04 I-T Safety Enterprises Limited Ground fault protection for electrical power distribution systems
US4196427A (en) * 1976-07-28 1980-04-01 Rudberg Harry I A Method and apparatus for measuring low concentrations of chlorine and chlorine oxide
DE2829931C2 (de) * 1978-07-07 1985-11-21 Auergesellschaft Gmbh, 1000 Berlin Tragbares Gasmeß- und Warngerät
CH629905A5 (de) 1978-07-17 1982-05-14 Cerberus Ag Gas- und/oder brandmeldeanlage.
JPS5844936B2 (ja) * 1979-02-23 1983-10-06 シャープ株式会社 調理器
US4334258A (en) * 1980-06-23 1982-06-08 Seeman Jeffrey L Explosion prevention control system for a fuel-gas burning automatic ignition appliance and associated gas distribution system
US4767913A (en) * 1986-05-15 1988-08-30 Amoco Corporation Automatic gas detector for arc welder
US5576739A (en) * 1992-06-18 1996-11-19 Phy-Con. Inc. Carbon monoxide safety system
DE202006014672U1 (de) * 2006-09-23 2008-02-14 Erben Kammerer Kg Auslöseschaltung für ein elektromagnetisches Stellglied
US20080198524A1 (en) * 2007-02-16 2008-08-21 Dometic Corporation Absorption gas arrestor system
US7683794B2 (en) * 2007-05-15 2010-03-23 David Contreras Carbon monoxide safety system for preventing entry into a dwelling containing toxic gases

Also Published As

Publication number Publication date
DE2025770A1 (de) 1970-12-03
US3609732A (en) 1971-09-28
FR2050400A1 (enExample) 1971-04-02
DE2025770B2 (de) 1978-11-16

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee