Mouth Alcohol Tester
First Claim
Patent Images
1. A breath alcohol tester, comprising:
- a breath manifold;
a flow restriction; and
a fuel cell;
wherein said breath manifold is designed to accept breath from a human subject, said breath including an early breath followed by a later breath;
wherein the action of said breath in said breath manifold against said flow restriction creates a positive pressure;
wherein said positive pressure forces at least a portion of said early breath into said fuel cell;
wherein the amount of alcohol in said early breath is calculated by said fuel cell as a first value;
wherein at least a portion of said later breath is drawn into said fuel cell;
wherein the amount of alcohol in said later breath is calculated by said fuel cell as a second value;
wherein the ratio of said first value to said second value is determined and compared to a predetermined threshold; and
wherein if said ratio exceeds said threshold, said breath alcohol tester indicates 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.
-
Citations
22 Claims
-
1. A breath alcohol tester, comprising:
-
a breath manifold; a flow restriction; and a fuel cell; wherein said breath manifold is designed to accept breath from a human subject, said breath including an early breath followed by a later breath; wherein the action of said breath in said breath manifold against said flow restriction creates a positive pressure; wherein said positive pressure forces at least a portion of said early breath into said fuel cell; wherein the amount of alcohol in said early breath is calculated by said fuel cell as a first value; wherein at least a portion of said later breath is drawn into said fuel cell; wherein the amount of alcohol in said later breath is calculated by said fuel cell as a second value; wherein the ratio of said first value to said second value is determined and compared to a predetermined threshold; and wherein if said ratio exceeds said threshold, said breath alcohol tester indicates the presence of mouth alcohol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A breath alcohol tester, comprising:
-
a breath manifold; a flow restriction; a first fuel cell; and a second fuel cell; wherein said breath manifold is designed to accept breath from a human subject, said breath including an early breath followed by a later breath; wherein the action of said breath in said breath manifold against said flow restriction creates a positive pressure; wherein said positive pressure forces at least a portion of said early breath into said first fuel cell; wherein the amount of alcohol in said early breath is calculated by said first fuel cell as a first value; wherein at least a portion of said later breath is drawn into said second fuel cell; wherein the amount of alcohol in said later breath is calculated by said second fuel cell as a second value; wherein the ratio of said first value to said second value is determined and compared to a predetermined threshold; and wherein if said ratio exceeds said threshold, said breath alcohol tester indicates the presence of mouth alcohol. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. 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 exceeds said threshold, indicating the presence of mouth alcohol. - View Dependent Claims (21, 22)
-
Specification