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| Number | Title | Issue Date |
| 7437906 | Flow regulator device for an analytical circuit and its use in chromatography A flow regulator device for an analytical circuit, characterised by comprising: a fluid restriction (R) of defined characteristics related to the field of application of the analytical circuit, a direct-pressure regulator (2) positioned upstream of said restr... | 10/21/2008 |
| 7357831 | Method and apparatus for controlling humidity and mold An apparatus for reducing a relative humidity of air inside an enclosed space includes a portable outside air heat exchanger unit having a fan operative to create an air stream by drawing outside air from an intake and discharging the air stream through an outlet in... | 04/15/2008 |
| 7350350 | Exhaust gas purifying apparatus In an exhaust gas purifying apparatus for a diesel engine having a diesel particulate filter (DPF) provided in an exhaust pipe, a temperature of the DPF is indirectly detected (presumed) to prevent an over-heat of the DPF during a re-generation operation thereof. Fo... | 04/01/2008 |
| 7350581 | Vapor recovery system A vapor recovery apparatus for oil and gas well production that is used in combination with a liquid separator, a sales line and a holding tank includes a compressor, which is drivingly linked to an engine. A first conduit extends from fluid communication with the h... | 04/01/2008 |
| 7332010 | High pressure filter/separator and locking mechanism Disclosed is a two or three phase separator including a centrifugal separator, a demister (if a three phase separator), and a filter contained within a housing. The filter uses an outside-in flow principle. The filter includes an inner layer or a center core that de... | 02/19/2008 |
| 7311757 | Analyte pre-concentrator for gas chromatography An analyte pre-concentrator for gas chromatography is disclosed generally comprising a tube having a restricted outlet and packed with an adsorbent, wherein the tube serves as the liner of a chromatographic injector, as an adsorbent trap coupled to a chromatographic... | 12/25/2007 |
| 7311755 | Control of differential strain during heating and cooling of mixed conducting metal oxide membranes Method of operating an oxygen-permeable mixed conducting membrane having an oxidant feed side and a permeate side, which method comprises controlling the differential strain between the oxidant feed side and the permeate side by varying either or both of the oxygen ... | 12/25/2007 |
| 7288137 | Particulate trap A particulate trap has a plurality of filters and an air distributor. The air distributor has a first flow member and a second flow member. Each of the first and second flow members have a plurality of openings to allow exhaust flow through the plurality of filters.... | 10/30/2007 |
| 7285247 | Apparatus and method for operating a fuel reformer so as to purge soot therefrom A method of operating a fuel reformer includes advancing a first air/fuel mixture having a first air-to-fuel ratio into the fuel reformer. The method further includes determining if a soot purge is to be performed and generating a purge-soot signal in response there... | 10/23/2007 |
| 7281606 | Exhaust sound and emission control systems The exhaust sound and emission control systems comprise a series of embodiments of devices for reducing sound and noxious emissions from an automotive exhaust. The system may have an exhaust resonator having one or more catalytic converter elements in combination th... | 10/16/2007 |
| 7267709 | Methods and systems for characterizing a sorbent tube Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet ... | 09/11/2007 |
| 7261762 | Technique for detecting and predicting air filter condition A method and system for detecting and predicting air filter condition for an air handling system operates by determining a system resistance to air flow. The system resistance is utilized to determine a detection statistic indicative of current filter condition and ... | 08/28/2007 |
| 7255540 | Natural gas processing well head pump assembly A gas processing well head pump assembly consisting of a reciprocating piston compressor pump having input and output ports; an internal combustion engine connected operatively to the compressor pump; a first gas conduit having a wall, a well head end, a pump end, a... | 08/14/2007 |
| 7255104 | Breathing gas supply system A breathing gas supply system for supplying breathable gas in an aircraft includes an oxygen enriching apparatus which is operable in at least two modes to provide product gas with varying oxygen concentrations. A first feed line feeds more highly enriched product g... | 08/14/2007 |
| 7244281 | Method and apparatus for trapping and purging soot from a fuel reformer A plasma fuel reformer assembly for producing reformate gas includes a fuel reformer having an air/fuel input assembly, an electrode assembly, and a soot trap positioned downstream of the electrode assembly. The electrode assembly includes a first electrode and a se... | 07/17/2007 |
| 7219532 | System for regulating fluid flowing through chromatographic column Disclosed are systems and methods that include a sampling device, a chromatographic column, and a transfer line through which a fluid containing analytes to be measured are communicated from the sampling device to the column. The pressure at which the fluid containi... | 05/22/2007 |
| 7194890 | Gas chromatograph and expired air component analyzer A gas chromatograph having the capability of performing a reliable measurement under a condition that the baseline of a detector output is stabilized, and a breath component analyzer using the same are provided. This gas chromatograph comprises a gas separation colu... | 03/27/2007 |
| 7192463 | Arrangement for mounting electrical components to an aftertreatment filter An exhaust gas aftertreatment filter system for an internal combustion engine includes an aftertreatment filter disposed in-line with an exhaust gas conduit coupled to an internal combustion engine, a mounting bracket defining a mounting surface and at least one leg... | 03/20/2007 |
| 7168296 | Methods and systems for characterizing a sorbent tube Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet ... | 01/30/2007 |
| 7147689 | Apparatus and method for removing volatile organics from vented gases An apparatus and a method for removing volatile organic compounds from air that is vented from tanks and vessels containing hydrocarbon material. This invention also relates to a self-propelled vehicle on which the apparatus is mounted. ... | 12/12/2006 |
| 7112238 | Electronic air filter with resistive screen and electronic modular assembly A polarized media electronic air filter assembly has an electronics box mounted along one side by a slid-in fit into an open, receiving channel. Arcing between screens is reduced by using a relatively resistive material for at least one of the screens exposed to arc... | 09/26/2006 |
| 7111494 | Methods and systems for characterizing a sorbent tube Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet ... | 09/26/2006 |
| 7097689 | Process and system for purifying gases A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a reactor vessel, which exits as a second purified gas stream; b) combini... | 08/29/2006 |
| 7087101 | Method of controlling a gas adsorption apparatus A method of controlling a gas adsorption apparatus including a sieve bed containing molecular sieve bed material, the bed being cyclically operable in a charge mode to adsorb non-product gas from an air supply thereby to increase the concentration of a product gas i... | 08/08/2006 |
| 7081153 | Gas generating system and method for inerting aircraft fuel tanks The present invention provides a system and method for generation of nitrogen enriched air for inerting aircraft fuel tanks. One embodiment of the present invention includes a duct assembly; a primary heat exchanger; a gas generating system heat exchanger; a first t... | 07/25/2006 |
| 6974495 | Analyte pre-concentrator for gas chromatography An analyte pre-concentrator for gas chromatography is disclosed generally comprising a tube having a restricted outlet and packed with an adsorbent, wherein the tube serves as the liner of a chromatographic injector, as an adsorbent trap coupled to a chromatographic... | 12/13/2005 |
| 6969413 | Exhaust gas filtering system having particulate filter for internal combustion engine A flow rate of gas supplied to a diesel particulate filter is increased when it is determined that rapid combustion of collected particulates, which are collected by the particulate filter, is likely to occur based on an operating state of an internal combustion eng... | 11/29/2005 |
| 6955709 | Method and device for vaporization injection of high volumes in gas chromatographic analysis This invention concerns a method and apparatus for vaporization injection of large volumes of liquid sample (substance to be analysed+solvent) introduced by a syringe needle into a heated vaporization chamber which is part of an injector coupled operatively to a dev... | 10/18/2005 |
| 6923845 | Membrane air dryer for vehicle air brake system An air drying system for a vehicle including a membrane air dryer is provided. The air dryer is supplied with a stream of compressed air that has a low and constant concentration of oil vapor. A coalescing filter element may be used to maintain the oil vapor concent... | 08/02/2005 |
| 6913636 | Low power nitrogen enriched air generation system An inerting system provides air with reduced oxygen content by flowing and directing air through an air separation module. Optimal working pressure for the air separation module is obtained with two compressors. A first compressor elevates air from the aircraft cabi... | 07/05/2005 |
| 6767390 | Energy efficient desiccant dryer regeneration system A method to control the performance of desiccant dryers is disclosed that senses multiple variables and optimizes the regeneration cycle to deliver the gas at the desired dew point. The length of the stripping step is reduced or eliminated depending on the desired s... | 07/27/2004 |
| 6458190 | Installation and process for the separation of gas by selective permeation This installation comprises subgroups of permeators (SG1 to SG3), each subgroup comprising a permeator (4A to 4C) or several permeators mounted in parallel, and having an inlet (12A to 12C), a permeate outlet (14A to 14C) and a non-permeate outlet (16A to... | 10/01/2002 |
| 6402809 | Management of an air purification system with thermal regeneration A process and a system for purifying gas, such as air, before cryogenic distillation, in which at least one energy parameter, chosen from the flow rate of the regeneration gas entering and/or leaving at least one adsorber, the duration of the regeneration... | 06/11/2002 |
| 6395064 | System and method for purifying and distributing chemical gases Provided is a novel system for vaporizing and purifying a gas to produce ultrapure chemical gases employed at a semiconductor processing facility. The system includes a liquified gas source, a vaporization purification bed, and a buffer tank. The liquefie... | 05/28/2002 |
| 6120580 | Method for testing systems designed for NOx reduction in the combustion of carbonaceous fuels A method for the in-situ predetermination of the effects of NOx reduction systems on selected components. This determination can yield quick, inexpensive and accurate results for a number of characteristics, for example: catalyst longevity; efficiency wit... | 09/19/2000 |
| 6063169 | Control means for molecular sieve on-board oxygen generator A control device for molecular sieve on-board oxygen generating systems measures both temperature and pressure of the inlet air of an oxygen generating system. An electronic control unit applies pressure limits to a pressure measurement signal and combine... | 05/16/2000 |
| 5989313 | Method for operation of an air prepurifier which takes into account inlet air conditions A pressure swing adsorber (PSA) air prepurifier includes at least a first adsorber and a second adsorber and a controller for controlling air feed to the first adsorber and the second adsorber. The invention is a "realtime" method for controlling cycle ti... | 11/23/1999 |
| 5989312 | Membrane control system and process A membrane system controller and control method for maximizing retentate product output and incorporating compressor load detection apparatus and process parameter instrumentation for feeding essential monitoring information to a control unit. Product out... | 11/23/1999 |
| 5972075 | Exhaust gas purifier and regeneration method therefor In a purifier for removing particulates from an exhaust gas, a pressure difference, and a flow rate of the air supplied to the filter element is adjusted in such a manner that a difference between a pressure difference of an air across a substantially inv... | 10/26/1999 |
| 5915269 | Method and apparatus to compensate for gas chromatograph column permeability In a gas chromatograph system having a column with a stationary phase and a carrier gas moving through the column to contact the stationary phase, the system being useful for detecting analytes in a sample, a method and apparatus for predicting the retent... | 06/22/1999 |
