Quotables
"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8124419 | Gas sensor devices comprising organized carbon and non-carbon assembly This invention relates generally to gas sensors comprising organized assemblies of carbon and non-carbon compounds. The invention also relates to devices containing such gas sensors and analysis units. In preferred embodiments, the organized assemblies of the instan... | 02/28/2012 |
| 7855081 | Methods of detecting RF interference in breath ethanol testing Interference detector and methods for detecting interference in a signal are described. More specifically, in one aspect, a method for detecting interference in a signal is provided. The method comprises determining whether the signal has at least one of a time and ... | 12/21/2010 |
| 7736903 | Tracer to compensate for environmental variations that influence a chemical vapor sensor measurement A chemical vapor sensor is provided that passively measures a suspect chemical species of interest with high sensitivity and chemical specificity, for use with safety systems. A vapor concentrator amplifies a suspect chemical vapor concentration to a detectible leve... | 06/15/2010 |
| 7541192 | Process for distinguishing wet from dry gas with a breath alcohol measuring device A process is provided for distinguishing between wet from dry gas with a breath alcohol measuring device, in which a defined sample volume from a gas blown in is fed for sampling to an electrochemical sensor (6), which generates a sensor signal that depends o... | 06/02/2009 |
| 7425453 | Integrated circuit porphyrin-based optical Fabry-Perot chemical sensor A Fabry-Perot cavity has a pair of partially transmissive, partially reflective, surfaces. A first of the surfaces is flexibly suspended adjacent and parallel to a second of the surfaces. A gap exists between the surfaces. A variable electrostatic potential permits ... | 09/16/2008 |
| 7341693 | Portable RF breathalyzer A RF breathalyzer system, which transmits a unique RF signal in response to a toxic or non-toxic breath sample given to a RF breathalyzer by the user. An immobilizer CPU is installed in a vehicle to receive commands from the RF breathalyzer and to control a horn and... | 03/11/2008 |
| 7294512 | Solution for calibrating a chemical analyzer for alcohol, carbonate and ammonia assays A multi-analyte calibration solution having known amounts of sodium carbonate, ammonium bicarbonate, and ethyl alcohol, with pH adjusted within a range between about 7.8 and 8.4. ... | 11/13/2007 |
| 7285246 | Hand-held fluid analyzer A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. An ampoule positioned inside the housing is ruptured by manual pressure through the wall... | 10/23/2007 |
| 7256700 | Ignition interlock device and method An apparatus for monitoring the alcohol content of an individual, preferably in connection with vehicle operation, has a sensor head coupled to a remote control module. The sensor head measures both breath pressure and breath alcohol levels. The data from the sensor... | 08/14/2007 |
| 7218236 | Vehicle ignition interlock systems that detect the presence of alcohol within vehicles A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the breath alcohol level of a vehicle operator and is configured to preven... | 05/15/2007 |
| 7202090 | Hardness measurement reagent To provide a hardness measurement reagent unaffected by an M alkalinity in hardness measurement. A hardness measurement reagent as a one-solution type reagent includes a dye chosen from Eriochrome Black T (EBT) and Calmagite, triethanolamine, a glycol compound, and ... | 04/10/2007 |
| 7185533 | Multi-function detecting pen A multi-function detecting pen is described. The multi-function detecting pen includes a head module, a detecting chips module, a power module, a lighting module, and a control module. The head module is disposed at a front portion of the pen and the detecting chips... | 03/06/2007 |
| 7112447 | Hand held gas analyzer A lightweight and portable analyzer is provided. At least one component of the analyzer is made from a lightweight material, such as ABS. A manifold can have a plate and gas passages ultrasonically welded together. By having at least one component made from a lightw... | 09/26/2006 |
| 7063667 | Isotopic gas analyzer An NDIR spectrometer based on the use of wavelength specific lamp sources, whose emission spectrum consists of discrete, narrow lines characteristic of the isotope present in the lamp, and which it is desired to measure with the spectrometer. This allows very high i... | 06/20/2006 |
| 7045098 | Apparatus and method for removing interfering substances from a urine sample using a chemical oxidant Urine samples are made free of potentially interfering substances, such as alkaloids or pharmaceuticals, by contacting the urine sample with an amount of a chemical oxidizing agent in a disposable oxidation bag, while retaining the physical indicia characteristic of... | 05/16/2006 |
| 6881582 | Thin film ethanol sensor and a process for the preparation Disclosed is a method of making a bismuth molybdate precursor solution using a metallorganic decomposition (MOD) process consisting of the formation of a precursor sol of hexanoates of Bismuth (Bi) and Molybdenum (Mo). The precursor solution is used to make thin fil... | 04/19/2005 |
| 6792793 | Breath measurement instrument and breath alcohol interlock device incorporating same A breath measurement instrument using a combination of breath pressure, temperature, and humidity measurements to determine whether or not breath samples are human and properly delivered. Valid samples require maintenance of a threshold dynamic pressure of a sample ... | 09/21/2004 |
| 6730494 | Alcohol concentration test delivery system The present invention relates to an alcohol concentration assay test system, including compositions and methods for storing multiple alcohol concentration assay tests and compositions and methods for measuring the concentration of alcohol in an assay test sample. In... | 05/04/2004 |
| 6699717 | Method using luminescent transition metal-ligand complex for detecting polar solvents The present invention relates to a transition metal-ligand complex that shows changes in its luminescence lifetime characteristic and/or luminescence intensity as a function of the polarity and/or hydrogen bonding properties of its environment, and a sens... | 03/02/2004 |
| 6673560 | Measurement of hydride using chemiluminescent acridinium compounds and applications thereof The present invention discloses a method for the measurement of hydride using a chemiluminescent compound. The preferred chemiluminescent molecule is an acridinium compound. The source of hydride for the reduction of acridinium compound may be of chemical... | 01/06/2004 |
| 6464941 | Breath alcohol measuring apparatus having a sample intake channel and a temperature sensor mounted therein A breath alcohol measuring apparatus includes a sample intake channel (7) for receiving the respiratory gas sample and a temperature sensor mounted in the sample intake channel (7). The breath alcohol measuring apparatus is so improved that the influence ... | 10/15/2002 |
| 6348355 | Testing element for the colorimetric determination of oxidizable components in gas mixtures A testing elements for the calorimetric determination of oxidizable gas and/or vapor components in gas mixtures is provided. The testing element contains, besides usual oxidizing agents, at least one redox indicator, which is in the oxidized form. The red... | 02/19/2002 |
| 6309599 | Apparatus for determining the content of a predetermined substance in a fluid This invention relates to an apparatus for determining a given substance content of a fluid comprising a means for monitoring the fluid volume passing through the tube, and a heat sensitive indicator for indicating that the reactant mass has reached a cri... | 10/30/2001 |
| 6205840 | Time clock breathalyzer combination A combined time clock breathalyzer is provided including a clock for tracking a current time, an inlet port, an alcohol sensor connected to the inlet port for determining an amount of alcohol in an air flow, and a printer. Also included is a controller ad... | 03/27/2001 |
| 6177051 | Dispensable alcohol breath analyzer system A dispensable alcohol breath analyzer system including a rectilinear box with an analyzer on one face and an extendable tube on another face. The system also includes a plurality of units located within the box to be dispensed, each unit containing an ana... | 01/23/2001 |
| 6167746 | Apparatus and method for determining a person's sobriety An apparatus and method for determining the concentration of alcohol present in a gaseous mixture wherein an electronic device employing a fuel cell determines the concentration of alcohol present in the gaseous mixture is disclosed. In particular, the de... | 01/02/2001 |
| 6150177 | Device and process for determining the temperature of the gas sample flow during breath alcohol measurements A device comprising a combination of a mouthpiece (2) with a holder (1), which receives the mouthpiece (2) and has a sampling channel (4) leading to a breath alcohol-measuring device and a temperature sensor (11) arranged in the connection area between th... | 11/21/2000 |
| 6096558 | Process for calibrating a breath alcohol-measuring instrument A process for calibrating a breath alcohol-measuring instrument (7) with a calibrating gas generator (1) with a liquid container (2) for aqueous ethanol solution and air feed device, which allow air to bubble through the ethanol solution and for passing g... | 08/01/2000 |
| 6054322 | Use of sialic acid determination for determining alcohol consumption A method for the determination of an individual's alcohol consumption, characterized in comprising the steps: i) determining the level of sialic acid in a body fluid sample from the individual; ii) comparing the level found in step (i) with the level for ... | 04/25/2000 |
| 6046054 | Semiconducting oxide gas sensors The selectivity of response of resistive gas sensors to specific gases or vapors is improved by the selection of specified gas-sensitive materials which are not previously known for the applications described, which include detection of hydrocarbons in th... | 04/04/2000 |
| 6026674 | Apparatus and method for determining a person's sobriety An apparatus and method for determining the concentration of alcohol present in a gaseous mixture wherein an electronic device employing a fuel cell determines the concentration of alcohol present in the gaseous mixture is disclosed. In particular, the de... | 02/22/2000 |
| 5962330 | Method for detecting acid- and base-extractable markers Markers which are soluble in petroleum fuel and are extractable from petroleum fuel by either acidic aqueous solutions or basic solutions and develop a color in the presence of the extracting acidic or basic aqueous solution, are identified by passing a s... | 10/05/1999 |
| 5952235 | Detection of teratogen exposure The present invention relates to methods for detecting teratogen exposure in neonates. In particular, the present invention is directed to the detection of prenatal (i.e., in utero) exposure to ethanol. In accordance with the present invention, fatty acid... | 09/14/1999 |
| 5929319 | Breath testing apparatus This invention consists of breath testing apparatus 10 comprising a breath tube 11, a fuel cell housing 12 incorporating a pump system 12a, a fuel cell 13, a control and computational unit 14, and a display 15. A thermistor 22 is provided to detect the te... | 07/27/1999 |
| 5866427 | In vitro proton MRS detection of frequency and amount of alcohol self-administration In the method of the invention, in vitro proton MRS is employed to determine the measurable ethanol concentrations in ethanol-treated erythrocyte samples of occasional and heavy drinkers. An erythrocyte to plasma ethanol concentration ratio is determined ... | 02/02/1999 |
| 5798267 | Method for determining alcohol consumption rates A method for assessing or determining alcohol consumption rates including using a blood specimen from a human subject to develop an individual blood constituent panel; comparing the individual panel with a reference blood constituent panel to provide cate... | 08/25/1998 |
| 5788845 | Quantitation of carbohydrate deficient transferrin in high alcohol consumption by HPLC A method for determining the amount of carbohydrate deficient transferrin (CDT) in blood serum involves saturating a sample of the blood serum with iron to provide isoforms of transferrin, separating the isoforms of transferrin from other serum proteins i... | 08/04/1998 |
| 5783449 | Method for quantifying alcohol catabolism The method for quantifying Alcohol Breakdown Activity (ABA) in humans in vivo is developed to determine an efficiency of alcohol catabolism for any given individual. Unlike other related methods, Index-K uses a biological regularity of ABA and employs a t... | 07/21/1998 |
| 5766952 | Vapochromic platinum-complexes and salts The present invention relates to a process for indicating the presence of organic vapors comprising the steps of determining the color, absorption or emission spectra of a Pt--Pt double-complex salt of platinum or a neutral platinum complex in the absence... | 06/16/1998 |
| 5756631 | Siloxanes with strong hydrogen bond donating functionalities Viscous, liquid hexafluoroisopropanol-siloxane polymers having the basic structure: ##STR1## wherein R1 is a monovalent hydrocarbon radical selected from the group consisting of C1 -C6 alkyl groups; cyclohexyl groups ... | 05/26/1998 |
