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| Number | Title | Issue Date |
| 5375592 | Carbon dioxide detector and shield An apparatus (14) for detecting carbon dioxide in exhaled gas is disclosed. The apparatus comprises an indicating element (10) for changing color when exposed to carbon dioxide and a carbon dioxide shield (12) for absorbing a predetermined level of carbon... | 12/27/1994 |
| 5303575 | Apparatus and method for conducting an unsupervised blood alcohol content level test An automated unsupervised apparatus for conducting a blood alcohol content level test on an individual user, and subsequently discerning and displaying a meaningful test result, is disclosed. The apparatus comprises an alphanumeric display for instructing... | 04/19/1994 |
| 5143695 | Process and device for the continuous analysis of the composition of gases Process for the continuous analysis of the composition of gases, by means of a measuring head for determining the flow rate and analysis equipment which is placed a distance away from the measuring head and is connected thereto by a sample line, a calibra... | 09/01/1992 |
| 5091155 | Alcohol concentration sensor An alcohol concentration sensor provided a tube shaped means (21) of which the top end (211) is closed with a top end closing means (20) and of which the bottom end (212) is remained open, a gas supply tube means (22) which penetrates the top end closing ... | 02/25/1992 |
| 5055268 | Air-borne alcohol sensor An air-borne chemical sensor system includes a motor and impeller to draw an air sample into a housing containing a sensor which will provide a signal for display related to the amount of a particular air-borne chemical in a given air sample. The system i... | 10/08/1991 |
| 4997770 | Method and means for detecting blood alcohol in humans by testing vapor above the eye A method of detecting ethanol in lachrymal fluid is provided in which an open eye of a subject is enclosed in a chamber to define a space above the eye, an ethanol vapor sensor is introduced into the space of the chamber in a spaced relation to the eye; t... | 03/05/1991 |
| 4996161 | Breath alcohol testing system A breath alcohol testing system for advantageous use in unsupervised blood alcohol testing includes a face mask having for receiving a breath sample, components to confirm the identity and components to insure that this identity act and breath delivery ar... | 02/26/1991 |
| 4914038 | Apparatus and method for avoiding circumvention of an identity confirming breath tester A breath sobriety test system deters circumvention of a test having an alcohol measuring phase and an identification phase. In an alcohol measuring phase, the alcohol content of a breath sample delivered by an operator/test subject is measured in the conv... | 04/03/1990 |
| 4902628 | Apparatus and method to deter circumvention of a breath sobriety test An apparatus and method to deter circumvention of sobriety breath tests. As a precondition to passing the test, the invention requires an operator/test subject to apply a suction at the sample delivery port within a predetermined time of delivering a brea... | 02/20/1990 |
| 4818489 | Device for sampling breath air at the workplace A pocket instrument for sampling breath air in situ, includes a microprocessor-controlled directional control valve with needles at an outlet to which needle the sample vessels are attached. The directional control valve is arranged to be connected throug... | 04/04/1989 |
| 4791065 | Ethanol sensitive solid This invention is an ethanol sensitive solid useful for the colorimetric determination of ethyl alcohol in human breath samples. The solid is prepared by wetting silica gel with an acidic solution of a chromium(VI) salt and then heating to substantially d... | 12/13/1988 |
| 4786596 | Method of preparing a test strip for alcohol testing Ethyl alcohol test strip fabricating and use techniques for testing an individual's saliva to determine his sobriety are disclosed. The test strips employ an alcohol oxidase, Peroxidase and an hydrogen donor indicator such as Tetraalkylbenzidine in a carr... | 11/22/1988 |
| 4772559 | Method of detecting the presence of bronchogenic carcinoma by analysis of expired lung air A novel method of detecting and diagnosing lung cancers by monitoring and analyzing expired lung air for the presence of selected aromatic amines, particularly aniline and ortho-toluidine, is provided.... | 09/20/1988 |
| 4770026 | Method of and apparatus for testing breath alcohol 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 th... | 09/13/1988 |
| 4765962 | Gas testing vial A test vial for the detection of gas components in air, containing a packing changing along the longitudinal axis of the test vial is improved in such a manner that, at a constant flow resistance, a sensitivity for the hazardous substance to be detected i... | 08/23/1988 |
| 4749553 | Breath alcohol detector with improved compensation for environmental variables A breath alcohol detector measures and compensates for distance between the mouth of the individual exhaling breath into the ambient air and the detector, the atmospheric pressure, and the temperature. Blood alcohol content information is calculated using... | 06/07/1988 |
| 4676974 | Breath test for pancreatic exocrine function Pancreatic exocrine function is determined by a breath test method wherein a radioactive labelled ester such as cholesterol octanoate is ingested in the body and is hydrolyzed by pancreatic enzymes and oxidized to labelled Co2 which is expired ... | 06/30/1987 |
| 4671298 | Isothermal rebreathing apparatus and method A isothermal rebreathing apparatus and method for collecting human breath samples for chemical analysis of the ethyl alcohol content wherein the breath samples are obtained from a subject repetitively exhaling into the inhaling from an enclosed, flexible,... | 06/09/1987 |
| 4656008 | Alcohol breath testing device An alcohol breath testing device comprising a conduit through which human breath air is passed. The conduit contains a chemical material which changes appearance upon being contacted by alcohol vapor. An air float chamber is operably connected to said con... | 04/07/1987 |
| 4649027 | Breath tester A battery-operated portable breath tester is disclosed. The breath tester includes a housing which defines a sleeve for receiving a wand. The wand defines an internal sample chamber, with a lamp at one end for providing infrared energy and a detector at a... | 03/10/1987 |
| 4579826 | Method and device for analyzing human breath A device, useful for breath analysis and as an amusement device, comprising a flexible tube which can be extended from a shortened condition to an extended condition, one end of the tube being secured to a mouthpiece unit including both an input opening, ... | 04/01/1986 |
| 4548805 | Non-invasive test for gastric acid A non-invasive method for determining gastric acidity in humans, using oral magnesium metal powder while measuring the hydrogen gas response in exhaled breath and belches. The magnesium reacts with hydrochloric acid in the stomach liberating hydrogen and ... | 10/22/1985 |
| 4391777 | Apparatus for measuring breath alcohol A method of measuring breath alcohol includes blowing breath in a stream through an inlet line, hence through an orifice, past a thermistor exposed to the stream, changing the temperature of the thermistor to a predetermined temperature in response to a p... | 07/05/1983 |
| 4294583 | Highly sensitive gas measuring method for the analysis of breath alcohol concentrations, using test tubes A method of testing a person's breath for the purpose of determining the alcohol content of the breath as an indication of the alcohol in the person's blood and using a carbon monoxide gas detector comprises treating the breathing air to oxidize the alcoh... | 10/13/1981 |
| 4277251 | Method and device for determining the alcohol content of a person's breathing A method of determining the alcohol content of air exhaled by a person using a flow through testing tube having an alcohol indicating material therein and a sampling tube to which the air is directed which has a material therein for retaining the alcohol ... | 07/07/1981 |
| 4119089 | Method of predicting and determining ovulation by monitoring the concentration of volatile sulfur-containing compounds present in mouth air A novel method is provided for precisely predicting and then ascertaining the time of ovulation by monitoring the mouth air of a female, a first peak after menses in the concentration of said volatile sulfur-containing compounds in said mouth air predicti... | 10/10/1978 |
| 4114422 | Method of monitoring diet A method of monitoring diet includes introducing a sample of aveolar air into a device capable of measuring acetone quantitatively in amounts at least as small as 0.3 mcgm/l (microgram per liter); measuring the amount of acetone in the sample; converting ... | 09/19/1978 |
| 4105409 | Method and reagent for determining the ethyl alcohol content of a gas The invention concerns a reagent for determining the ethyl alcohol content of a gas, particularly human breath, by means of a color reaction. This reagent consists of a mixture of iodine pentoxide, a colorless metal nitrate or concentrated nitric acid, an... | 08/08/1978 |
| 4090078 | Method and arrangement for determining alcohol content in the breath A method for determining the alcohol content in the exhaling respiratory air using an alcohol measuring instrument and measuring the alcohol content when the exhaling air transmits the determined value of the alcohol concentration. This determined value o... | 05/16/1978 |
| 4080170 | Alcohol retainer cartridge and method for using same An alcohol retainer cartridge and method for using same are disclosed herein comprising calcium sulfate as an adsorbent for alcohol. The cartridge includes calcium sulfate contained within a tube between pieces of filter paper. At one end of the tube is a... | 03/21/1978 |
| 3948604 | Alcoholic breath simulation system A simulated alcoholic breath sample is provided by circulating a known volume of a gas such as air or non-alcoholic breath over the outer surface of a container filled with ethyl alcohol and maintained at a given temperature, the container having a wall p... | 04/06/1976 |
