Breath alcohol tester

Details Breath alcohol tester Breath alcohol tester

1991-05-07

1992-12-15

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 84, 436132, 436164, G01N 122

Patent

active

051715350

ABSTRACT:
A disposable breath alcohol tester is disclosed which includes a transparent housing defining an interior chamber. A tube extends through the housing chamber so that one end of the tube is open to one side of the chamber while the second end of the tube is open exteriorly to the opposite side of the chamber. An inflatable bladder is connected to the second end of the tube. The tube contains an alcohol reactant substance which changes color whenever the alcohol content of exhaled air passing through the tube exceeds a predetermined amount and at least a portion of both the tube and the housing are transparent so that the alcohol reactant substance can be observed. In use, the person under test inflates the bladder by blowing through the tube and thus through the alcohol reactant substance. The color of the alcohol reactant substance is then observed in order to determine the alcohol content of the exhaled breath.

REFERENCES:
patent: 2867511 (1959-01-01), Harger

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