Mouth alcohol tester
First Claim
Patent Images
1. A method for detecting the presence of mouth alcohol, the method comprising:
- having a human subject breath into a breath manifold of a breath tester, the breath of said human subject including an early breath followed by a later breath;
having at least a portion of said early breath enter into a fuel cell;
determining an amount of alcohol in said early breath at said fuel cell;
having at least a portion of said later breath enter into said fuel cell;
determining an amount of alcohol in said later breath at said fuel cell;
calculating the ratio of said amount of alcohol in said early breath to said amount of alcohol in said later breath;
comparing said ratio to a predetermined threshold; and
if said ratio is between about 0.05 and 1, indicating the presence of mouth alcohol.
3 Assignments
0 Petitions
Accused Products
Abstract
This application discloses a system for detecting mouth alcohol which is integrated with a breath-measuring instrument. In an embodiment, the breath-measuring instrument comprises a single fuel cell system, wherein the single fuel cell measures an individual'"'"'s alveolar breath as well as detection of any mouth alcohol. In a further embodiment, the breath-measuring instrument comprises a first fuel cell and a second fuel cell, wherein the first fuel cell measures alveolar breath and the second fuel cell detects mouth alcohol.
19 Citations
9 Claims
-
1. A method for detecting the presence of mouth alcohol, the method comprising:
-
having a human subject breath into a breath manifold of a breath tester, the breath of said human subject including an early breath followed by a later breath; having at least a portion of said early breath enter into a fuel cell; determining an amount of alcohol in said early breath at said fuel cell; having at least a portion of said later breath enter into said fuel cell; determining an amount of alcohol in said later breath at said fuel cell; calculating the ratio of said amount of alcohol in said early breath to said amount of alcohol in said later breath; comparing said ratio to a predetermined threshold; and if said ratio is between about 0.05 and 1, indicating the presence of mouth alcohol. - View Dependent Claims (2)
-
-
3. A method for detecting the presence of mouth alcohol, the method comprising:
-
having a human subject breath into a breath manifold of a breath tester, the breath of said human subject including an early breath followed by a later breath; having a first volume of breath from said early breath enter into a fuel cell; determining an amount of alcohol in said early breath at said fuel cell; having a second volume of breath from said later breath enter into said fuel cell, wherein said second volume is greater than said first volume; determining an amount of alcohol in said later breath at said fuel cell; calculating the ratio of said amount of alcohol in said early breath to said amount of alcohol in said later breath; and if said ratio is greater than a predetermined threshold, indicating the presence of mouth alcohol. - View Dependent Claims (4, 5, 6, 7, 8, 9)
-
Specification