GB2298285B - A carbon monoxide alarm device - Google Patents

A carbon monoxide alarm device

Info

Publication number
GB2298285B
GB2298285B GB9603898A GB9603898A GB2298285B GB 2298285 B GB2298285 B GB 2298285B GB 9603898 A GB9603898 A GB 9603898A GB 9603898 A GB9603898 A GB 9603898A GB 2298285 B GB2298285 B GB 2298285B
Authority
GB
United Kingdom
Prior art keywords
carbon monoxide
alarm device
monoxide alarm
carbon
monoxide
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 - Fee Related
Application number
GB9603898A
Other versions
GB2298285A (en
GB9603898D0 (en
Inventor
Michael Byrne
Michael Guinee
James Duignan
Brian Rogers
Fergus Flynn
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.)
EI Technology Ltd
Original Assignee
EI Technology 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 EI Technology Ltd filed Critical EI Technology Ltd
Publication of GB9603898D0 publication Critical patent/GB9603898D0/en
Publication of GB2298285A publication Critical patent/GB2298285A/en
Application granted granted Critical
Publication of GB2298285B publication Critical patent/GB2298285B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/004—CO or CO2
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Emergency Alarm Devices (AREA)
GB9603898A 1995-02-23 1996-02-23 A carbon monoxide alarm device Expired - Fee Related GB2298285B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE950150 1995-02-23

Publications (3)

Publication Number Publication Date
GB9603898D0 GB9603898D0 (en) 1996-04-24
GB2298285A GB2298285A (en) 1996-08-28
GB2298285B true GB2298285B (en) 1998-06-10

Family

ID=11040677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9603898A Expired - Fee Related GB2298285B (en) 1995-02-23 1996-02-23 A carbon monoxide alarm device

Country Status (1)

Country Link
GB (1) GB2298285B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1284514B1 (en) * 1996-09-12 1998-05-21 Bticino Spa ELECTRONIC DEVICE FOR DETECTION OF GAS PRESENT IN THE ENVIRONMENT
DE19833454C2 (en) * 1998-07-24 2000-06-08 Siemens Ag Method for reducing drift behavior in resistive high-temperature gas sensors and device for carrying out the method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1511031A (en) * 1974-07-01 1978-05-17 Motor Co Ltd Circuit for controlling the energisation of a heater winding
GB2075195A (en) * 1980-04-30 1981-11-11 Emi Ltd Gas sensors
US5055269A (en) * 1989-03-06 1991-10-08 Bacharach, Inc Temperature limited catalytic gas detector apparatus
WO1996001420A1 (en) * 1994-07-04 1996-01-18 Roth-Technik Gmbh & Co. Forschung Für Automobil- Und Umwelttechnik Circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1511031A (en) * 1974-07-01 1978-05-17 Motor Co Ltd Circuit for controlling the energisation of a heater winding
GB2075195A (en) * 1980-04-30 1981-11-11 Emi Ltd Gas sensors
US5055269A (en) * 1989-03-06 1991-10-08 Bacharach, Inc Temperature limited catalytic gas detector apparatus
WO1996001420A1 (en) * 1994-07-04 1996-01-18 Roth-Technik Gmbh & Co. Forschung Für Automobil- Und Umwelttechnik Circuit

Also Published As

Publication number Publication date
GB2298285A (en) 1996-08-28
GB9603898D0 (en) 1996-04-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020223