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US 8,176,766 B1Granted
Liquid and solid trapping mouthpiece
AssigneeAlcotek, Inc.
InventorsHector Ruiz, Ildefonso Gonzalez, Keith Lueck
Life of this patent
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Abstract
A liquid and solid trap which induces cyclonic motion of a breath flow to separate solids and liquids from a breath sample prior to that sample being provided to a breath detector for determining composition of the vapor portion of said sample. The trap is generally used on delivery type testing devices used for measuring breath alcohol content.
Claims18
A breath tester for trapping particles, the tester comprising:
- a trap including:
- an inverted generally conical frustum having a top and a bottom where the diameter of the top is greater than the diameter of the bottom and trapped particles are collected in the bottom;
- an inlet port arranged toward said top of said frustum, for having a breath flow enter said frustum and form a cyclone therein;
- and
- an exit port arranged at said top for exhausting breath flow from said conical frustum;
- a series of baffles arranged at the top of the inverted conical frustum flush with the inlet for aiding in establishing the cyclone and the migration of particles to the bottom of the trap;
- a sample inlet port for accepting a sample of an exhausted breath vapor from said exit port;
- and
- a detector, which can determine the alcohol concentration of said sample.
6 more elements
A method of providing a breath stream for breath alcohol analysis, the method comprising:
- having a user breathe a breath flow into an input tube;
- inducing a cyclone on said breath flow within a trap by said breath flow coming into contact with a series of baffles flush with the inlet arranged at the top of the inverted conical frustum;
- utilizing said cyclone to expel at least some solid particles and liquid droplets from said breath flow;
- expelling said breath flow from said trap while capturing said particles and droplets in said trap;
- and
- providing said expelled breath flow to a breath alcohol testing device.
3 more elements
Dependencies are inferred from the claim text.