Apparatus and method to deter circumvention of a breath sobriety

Details Apparatus and method to deter circumvention of a breath sobriety Apparatus and method to deter circumvention of a breath sobriety

1988-08-24

1990-02-20

Richman, Barry S.

Chemistry: analytical and immunological testing

Oxygen containing

Hydroxyl containing

180272, 307 106, 340576, 422 84, 436148, 436900, G01N 3348

Patent

active

049026283

ABSTRACT:
An apparatus and method to deter circumvention of sobriety breath tests. As a precondition to passing the test, the invention requires an operator/test subject to apply a suction at the sample delivery port within a predetermined time of delivering a breath sample thereinto. The delay, if any, between the required sucking and the delivery of the breath sample is selected to be short thereby deterring a substitution of gas sources. In this way, the invention effectively deters circumvention of sobriety breath tests due to attempts to supply bogus gas samples from a positive pressure gas source incapable of applying a reverse pressure gradient.

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"Potential for Application of Ignition Interlock Devices to Prohibit Operation of Motor Vehicles by Intoxicated Individuals", A Report to Congress, U.S. Dept. of Transportation, National Highway Traffic Safety Administration, May 1988, pp. 1-39.

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