GB9827593D0 - Device for detecting gases for use in diffusion and forced flow modes - Google Patents

Device for detecting gases for use in diffusion and forced flow modes

Info

Publication number
GB9827593D0
GB9827593D0 GBGB9827593.6A GB9827593A GB9827593D0 GB 9827593 D0 GB9827593 D0 GB 9827593D0 GB 9827593 A GB9827593 A GB 9827593A GB 9827593 D0 GB9827593 D0 GB 9827593D0
Authority
GB
United Kingdom
Prior art keywords
diffusion
forced flow
flow modes
detecting gases
gases
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.)
Granted
Application number
GBGB9827593.6A
Other versions
GB2329716B (en
GB2329716A (en
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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
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 US08/315,709 external-priority patent/US5495747A/en
Application filed by Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Publication of GB9827593D0 publication Critical patent/GB9827593D0/en
Publication of GB2329716A publication Critical patent/GB2329716A/en
Application granted granted Critical
Publication of GB2329716B publication Critical patent/GB2329716B/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
    • 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
    • G01N33/0011—Sample conditioning
    • 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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
    • 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
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • 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
    • G01N33/0047—Organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB9827593A 1994-09-30 1995-09-28 Method of determining concentration of combustible gas Expired - Fee Related GB2329716B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/315,709 US5495747A (en) 1994-09-30 1994-09-30 Device for detecting gases for use in diffusion and forced flow modes
GB9703694A GB2308196B (en) 1994-09-30 1995-09-28 Device for detecting gases for use in diffusion and forced flow modes

Publications (3)

Publication Number Publication Date
GB9827593D0 true GB9827593D0 (en) 1999-02-10
GB2329716A GB2329716A (en) 1999-03-31
GB2329716B GB2329716B (en) 1999-05-12

Family

ID=26311048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9827593A Expired - Fee Related GB2329716B (en) 1994-09-30 1995-09-28 Method of determining concentration of combustible gas

Country Status (1)

Country Link
GB (1) GB2329716B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925368B4 (en) * 1999-06-02 2015-01-15 Robert Bosch Gmbh Method and device for driving speed control of a vehicle
US7062952B2 (en) 2003-05-21 2006-06-20 General Electric Company Combustible gas detector having flow-through sensor container and method for measuring such gases
US7056098B2 (en) * 2003-05-21 2006-06-06 General Electric Company Pump for supplying a gas to a sensor and methods therefor
US6973819B2 (en) * 2003-11-01 2005-12-13 Honeywell International Inc. Differential compensated vapor sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305724A (en) * 1980-08-04 1981-12-15 Delphian Partners Combustible gas detection system
GB2185577B (en) * 1986-01-21 1989-11-29 Draegerwerk Ag Method and apparatus for detection of combustible gases
US4818977A (en) * 1987-11-03 1989-04-04 Mine Safety Appliances Company Combustible gas detector having temperature stabilization capability
US5055269A (en) * 1989-03-06 1991-10-08 Bacharach, Inc Temperature limited catalytic gas detector apparatus

Also Published As

Publication number Publication date
GB2329716B (en) 1999-05-12
GB2329716A (en) 1999-03-31

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Legal Events

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

Effective date: 20130928