1
Karl Wolf: Breath alcohol testing device. Alcotek, Polster Polster and Lucchesi, December 11, 1984: US04487055 (49 worldwide citation)

In a breath alcohol testing device, including a breath-receiving tube, a fuel cell chamber communicating with the tube, a fuel cell within the chamber and a movable wall, for example, a diaphragm, mounted adjacent the fuel cell, to be moved reciprocably between a down position at which the wall is r ...


2
Karl P W Wolf: Breath alcohol device. Alcotek, Polster Lieder Woodruff & Lucchesi, March 8, 1994: US05291898 (37 worldwide citation)

A hand held breath analyzer is energized when a mouthpiece tube is put into position. An ejector mechanism expels the mouthpiece, which de-energizes the system. The insertion of the mouthpiece not only cocks the ejector mechanism but closes a cover on an exhaust manifold of a breath sample passage. ...


3
Karl P W Wolf: Method of and apparatus for testing breath alcohol. Alcotek, Polster Polster and Lucchesi, September 13, 1988: US04770026 (25 worldwide citation)

Apparatus for measuring breath alcohol content by oxidizing breath alcohol in a fuel cell and utilizing substantially all of the electrons produced by said oxidation as a measure of the amount of alcohol contained in the sample. A working embodiment of the invention includes a resistor across termin ...


4
Hector Ruiz, Ildefonso Gonzalez, Keith Lueck: Liquid and solid trapping mouthpiece. Alcotek, Lewis Rice & Fingersh L C, May 15, 2012: US08176766 (11 worldwide citation)

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 dev ...


5
Keith Lueck: Systems and methods for determining the position of an electrical solenoid. Alcotek, Lewis Rice & Fingersh L C, August 3, 2010: US07768257 (7 worldwide citation)

Provided herein are systems and methods which use the solenoid itself to sense the position of the armature within the solenoid, and therefore to determine the position of the solenoid's armature, and or any related devices whose movement is dependent on the armature's movement. Specifically, a syst ...


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David J Bayer, M Rankine Forrester, Joe E Fodor Sr: Handheld breath tester housing and mouthpiece. Intoximeters, Alcotek, Armstrong Teasdale, July 6, 2010: US07749169 (4 worldwide citation)

A breath tester housing assembly is provided. The assembly comprises a housing having a base to be gripped by an operator, a display oriented to be in line with an operator's direct line of view while gripping the base, and a mouthpiece interface for interfacing with a removable mouthpiece so that w ...


8
John Mitchell: Mouth alcohol tester. Alcotek, Lewis Rice & Fingersh L C, April 24, 2012: US08161793 (3 worldwide citation)

This application discloses a system for detecting mouth alcohol which is integrated with a breath-measuring instrument. In an embodiment, the breath-measuring instrument comprises a single fuel cell system, wherein the single fuel cell measures an individual's alveolar breath as well as detection of ...


9
David J Bayer, M Rankine Forrester: Methods and apparatus for breath alcohol testing. Intoximeters, Alcotek, Armstrong Teasdale, December 21, 2010: US07855027 (3 worldwide citation)

A fuel cell assembly includes a fuel cell, a fuel cell housing, and a diaphragm. The fuel cell housing includes an endwall and an inlet port extending through said endwall. The inlet port is for admitting a breath sample into the housing. The diaphragm is coupled within the housing such that a cavit ...


10
John Mitchell: Mouth alcohol tester. Alcotek, Lewis Rice & Fingersh L C, June 24, 2014: US08756974 (1 worldwide citation)

This application discloses a system for detecting mouth alcohol which is integrated with a breath-measuring instrument. In an embodiment, the breath-measuring instrument comprises a single fuel cell system, wherein the single fuel cell measures an individual's alveolar breath as well as detection of ...