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A vest or belt is integrally formed with tubular, pet receiving passageways which extend around the wearer's body and terminate in pocket-like chambers for feeding and retrieval.
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| Number | Title | Issue Date |
| 7310991 | Explosion-proof gas sensor An explosion-proof gas sensor has a measuring element (2), which generates a measured signal that depends on the concentration of the measured gas and is delimited against the environment by means of a porous, gas-permeable and sintered metal body (7).... | 12/25/2007 |
| 6967103 | Apparatus and methods for detecting explosives and other substances An explosive detector that utilizes an array of molecularly imprinted polymer (MIP) coated, bifurcated fiber optic cables to form an image of a target molecule source. Individual sensor fiber assemblies, each with a calibrated airflow, are used to expose the fibers ... | 11/22/2005 |
| 6946300 | Multi-modal detection of explosives, narcotics, and other chemical substances A compact scanning apparatus has an infrared laser adapted to emit light. The light is delivered as a beam by an optical system to illuminate an interrogation area on the surface of an object being scanned to cause selective desorption of molecules of the contraband... | 09/20/2005 |
| 6916664 | Flammable vapor sensor A method and apparatus for sensing a flammable vapor are described herein. Initially, a first thermal conductivity of a vapor at a first temperature and a second thermal conductivity of the vapor at a second temperature can be determined. Thereafter, a ratio of the ... | 07/12/2005 |
| 6911180 | Catalytic sensor A combustible gas sensor includes an active element in electrical connection with a measurement circuit. The measurement circuit includes a thermistor network to compensate for the effect of changes in ambient temperature to the resistance of the active element. Ano... | 06/28/2005 |
| 6884997 | Method and apparatus for detecting dangerous substances and substances of interest A dangerous substance detecting apparatus comprises an oven for accommodating a wiping member stuck with a sample derived from a dangerous substance, a light source for emitting infrared rays for heating the sample, an ion source for ionizing the sample evaporated i... | 04/26/2005 |
| 6406918 | Thermal analysis for detection and identification of explosives and other controlled substances The invention features methods and systems for detecting the presence of an energetic material in a sample in which the presence of the energetic material is unknown. The method includes the steps of: heating the sample; measuring heat flow between the sa... | 06/18/2002 |
| 6210896 | Molecular motors The present invention relates to molecular motors and their use in linear analysis of polymers. In particular, molecular motors are used to move polymers with respect to a station such that specific signals arise from the interaction between the polymer a... | 04/03/2001 |
| 6001308 | Detonation/deflagration precursor detection of gases, vapors, aerosols, and mixtures thereof The present invention and its claims encompass principles, methods, apparatus, and applications for detection, quantification, and monitoring of responses of gases, vapors, aerosols, and mixtures thereof to initiators of exothermic reactions. While the in... | 12/14/1999 |
| 5869343 | Method and apparatus for the automated testing of the flash point The invention describes a method and an apparatus for the automated testing of the flash point and can be used for determining the flash point of flammable liquids. In particular, the inventive method makes is possible to automate the phase of preparing a... | 02/09/1999 |
| 5789256 | Detonation/deflagration precursor detection of gases, vapors, aerosols, and mixtures thereof The present invention and its claims encompass principles, methods, apparatus, and applications for detection, quantification, and monitoring of responses of gases, vapors, aerosols, and mixtures thereof to initiators of exothermic reactions. While the in... | 08/04/1998 |
| 5631374 | Reagents for detection of primary amines The present invention is directed to derivatives of aroyl-2-quinoline-carboxaldehyde and their use in detection and quantification of minute amounts of primary amines.... | 05/20/1997 |
| 5551278 | Vapor collector/desorber with non-conductive tube bundle A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 09/03/1996 |
| 5497651 | Method and apparatus for automatic selection of containers A method and a system for analyzing gas samples employ at least two semiconductor sensor sets, used alternately. The sensor output signals are time-differentiated. As a result of these features, the time required for analysis can be reduced considerably, ... | 03/12/1996 |
| 5476794 | Detection method for checking surfaces for nitrogen-containing explosives or drugs Disclosed is a method of rapidly checking surfaces for the presence of traces of specific compounds such as certain explosives and drugs. A hand-covering such as a cotton glove is used to wipe surfaces to pick up particles of the specific compound which m... | 12/19/1995 |
| 5310681 | Selective detection with high speed gas chromatography A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 05/10/1994 |
| 5310683 | Process for simultaneous measurement of sulfur and non-sulfur containing compounds A process and apparatus for the simultaneous measurement of sulfur-containing compounds and organic compounds with or without sulfur in their structures. A detector cell allows simultaneous measurement of compounds that can be ionized in a flame and there... | 05/10/1994 |
| 5227135 | Apparatus for simultaneous measurement of sulfur and non-sulfur containing compounds The present invention describes the process and apparatus for the simultaneous measurement of sulfur-containing compounds and organic compounds with or without sulfur in their structures. A detector cell is described that allows simultaneous measurement o... | 07/13/1993 |
| 5162235 | Method for assessing distillate fuel stability by oxygen overpressure Reactions leading to insoluble sediments formation in distillate fuel are accelerated by forcing oxygen into solution in the fuel at pressures of between about 90 and 110 psig and then stressing the fuel under conditions of accelerated storage at temperat... | 11/10/1992 |
| 5123274 | Hand-held sample gun for vapor collection A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 06/23/1992 |
| 5099743 | Selective detection with high speed gas chromatography A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/31/1992 |
| 5098451 | Vapor concentrator A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/24/1992 |
| 5092155 | High speed detection of vapors of specific compounds A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/03/1992 |
| 5092219 | Selective decomposition of nitrite esters and nitramines A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/03/1992 |
| 5092218 | Selective detection of explosives vapors A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/03/1992 |
| 5092157 | Vapor collector/desorber with metallic ribbon A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/03/1992 |
| 5092156 | Vapor collector/desorber with tube bundle and metal foil (C) A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held samp... | 03/03/1992 |
| 5092220 | Nitric oxide detection with hydrogen and ozone A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample g... | 03/03/1992 |
| 4549815 | Measurement of ignition characteristics of distillate fuels Ignition delay of distillate fuels is measured by heating a block to an elevated temperature and injecting samples into a cavity in the block as it cools. The time between each injection and ignition of the fuel is measured. This measurement of ignition d... | 10/29/1985 |
| 4432921 | Process for producing a binder for wood materials A process in which phenolic substances, particularly lignin sulfonate, are used to produce a binder for wood materials. The phenolic substance is activated by displacing it with enzymes. Phenolic groups of the phenolic substance become oxidatively polymer... | 02/21/1984 |
| 4305724 | Combustible gas detection system Methods and apparatus for measuring combustible gases in which an active sensor is maintained at controlled, temperature in respect of a reference sensor by means of a bridge-sampling system and a variable duty cycle system responsive to the bridge sampli... | 12/15/1981 |
| 4220452 | Detection of gases A method of detecting the presence of a foreign gas in a gaseous medium of known combustion properties uses the fact that the percentage lower or upper explosive limits (LEL or UEL) of mixtures of any flammable gas in any other gas all have approximately ... | 09/02/1980 |
