Breath testing system

Details Breath testing system Breath testing system

G - Physics

01

N

324/59

G01N 27/26 (2006.01) G01N 33/497 (2006.01)

Patent

CA 1100187

IMPROVED BREATH TESTING SYSTEM Inventor: Gary L. VanderSyde Abstract of the Disclosure In a breath tester of the type wherein a subject blow breath into an input for a predetermined continuous and un- interrupted flow, which breath is exposed to an electronic detector element whose output signal is employed to derive and display an output which is representative of the alcohol present in the breath and which detector, if subject to con- tinued exposure of additional breath after the predetermined flow, is prone to produce an erroneous output, an electronic system is provided for electrically storing and isolating a detector signal produced from only the predetermined flow, whereby errors resulting from continuous flow or mechanical valving arrangements are voided. The system disclosed in- cludes circuit means for switching out and holding the end of flow detector signal and for producing an output based on that signal. -1-

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