Breath flow indicator

Details Breath flow indicator Breath flow indicator

1987-01-28

1988-05-17

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

116137R, 436132, G01N 122

Patent

active

047449535

ABSTRACT:
In a portable breath alcohol detector using a standard tubular mouthpiece, a breath direction and continuity sensor takes the form of a whistle mounted at a predetermined distance from the discharge end of the mouthpiece to leave a gap, open to the ambient atmosphere, between the discharge end and the whistle, the whistle being of sufficient sensitivity to be activated by a breath blown toward the whistle across the gap and the gap being of a size not appreciably to restrict the flow of breath, and permit air being inhaled to pass freely, whereby if the subject stops breathing, or inhales, the whistle stops sounding, and whereby residual alcohol in the whistle will not be drawn back into the mouthpiece when the subject inhales.

REFERENCES:
patent: 735628 (1903-08-01), Waxel
patent: 3877291 (1975-04-01), Hoppesch et al.

Affiliated with

Also associated with

Rating

Breath flow indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Breath flow indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Breath flow indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1880420