GB1338730A - Breath testing system - Google Patents

Breath testing system

Info

Publication number
GB1338730A
GB1338730A GB5176972A GB5176972A GB1338730A GB 1338730 A GB1338730 A GB 1338730A GB 5176972 A GB5176972 A GB 5176972A GB 5176972 A GB5176972 A GB 5176972A GB 1338730 A GB1338730 A GB 1338730A
Authority
GB
United Kingdom
Prior art keywords
alcohol
sample
sensing elements
bridge
testing system
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
GB5176972A
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Publication of GB1338730A publication Critical patent/GB1338730A/en
Expired 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
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
    • G01N33/4972—Determining alcohol content

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Food Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Urology & Nephrology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

1338730 Detecting gases electrically BORGWARNER CORP 9 Nov 1972 [28 Dec 1971] 51769/72 Heading G1N A breath alcohol testing system includes a normally balanced bridge circuit having first and second substantially identical alcohol sensing elements, such as heated catalyst resistances, in adjacent arms. First and second substantially the same samples of deep breath are obtained and the first sample is supplied directly to the first sensing element simultaneously with the second sample being supplied via an alcohol removal stage, such as a heated platinum wire to the second sensing element. Thus the effect of carbon dioxide and water in the two samples on the sensing elements is balanced out in the bridge. The bridge unbalance is indicated on a meter or by a lamp which is illuminated when the alcohol concentration in the first sample exceeds a predetermined level. The sensing elements may be of the ionization or semiconductor type.
GB5176972A 1971-12-28 1972-11-09 Breath testing system Expired GB1338730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00213141A US3852036A (en) 1971-12-28 1971-12-28 Breath testing system

Publications (1)

Publication Number Publication Date
GB1338730A true GB1338730A (en) 1973-11-28

Family

ID=22793890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5176972A Expired GB1338730A (en) 1971-12-28 1972-11-09 Breath testing system

Country Status (8)

Country Link
US (1) US3852036A (en)
JP (1) JPS4877895A (en)
AU (1) AU469363B2 (en)
CA (1) CA967394A (en)
DE (1) DE2257486B2 (en)
FR (1) FR2166149B1 (en)
GB (1) GB1338730A (en)
IT (1) IT971238B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6509169B2 (en) 2000-07-14 2003-01-21 University Of West England, Bristol Detection of Helicobacter pylori
GB2364778A (en) * 2000-07-14 2002-02-06 Hypoguard Ltd Detection of Helicobacter pylori and apparatus therefor
US20120065534A1 (en) * 2010-09-03 2012-03-15 AMDT Inc. Diagnostic nanosensor device and method for breath analysis
US9678058B2 (en) 2010-09-03 2017-06-13 Anastasia Rigas Diagnostic method and breath testing device
US10401318B2 (en) 2011-03-14 2019-09-03 Anastasia Rigas Breath analyzer and breath test methods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2310472A (en) * 1940-10-12 1943-02-09 Cities Service Oil Co Gas analyzer
US3076697A (en) * 1959-09-11 1963-02-05 Miller Joseph Analyzer for determining concentration of combustibles in gases
US3464797A (en) * 1966-10-26 1969-09-02 Cabot Corp Instrument for determining ozone
US3558283A (en) * 1967-06-09 1971-01-26 Mine Safety Appliances Co Determination of reactive hydrocarbons in air
US3558279A (en) * 1967-06-20 1971-01-26 Ionics Electrochemical sensor device
US3600134A (en) * 1968-04-11 1971-08-17 Corning Glass Works Method for the determination of alcohol and other oxidizable organic compounds in respired air and body fluids

Also Published As

Publication number Publication date
JPS4877895A (en) 1973-10-19
FR2166149A1 (en) 1973-08-10
IT971238B (en) 1974-04-30
AU4879072A (en) 1974-05-16
AU469363B2 (en) 1976-02-12
DE2257486A1 (en) 1973-07-12
DE2257486B2 (en) 1976-10-21
US3852036A (en) 1974-12-03
CA967394A (en) 1975-05-13
FR2166149B1 (en) 1974-01-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee