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Chemical impairment detection system with an integrated, multi-function breath chamber

  • US 10,488,398 B2
  • Filed: 12/17/2015
  • Issued: 11/26/2019
  • Est. Priority Date: 12/17/2015
  • Status: Active Grant
First Claim
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1. A chemical impairment detection system comprising:

  • an intake adapted to receive an air sample from a source;

    an alcohol sensor for detecting an alcohol level in the air sample;

    an integrated breath chamber for channeling the air sample from the intake to the alcohol sensor, wherein the integrated breath chamber is comprised of an internal cavity and an external shell;

    a source evaluator means in the integrated breath chamber for measuring one or more characteristics of the received air sample for validating the air sample, the source evaluator means measuring characteristics of the air sample as the air sample flows through the integrated breath chamber,wherein the source evaluator means comprises a temperature measuring device and a heating element located in the internal cavity of the integrated breath chamber, and wherein the source evaluator means further comprises a pressure sensing means located in the internal cavity of the integrated breath chamber for measuring pressure of the air sample; and

    a second pressure sensor located outside of the integrated breath chamber.

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