Gas separation: processes inventions 04/07

20070089602 - Electrical enhancement of fabric filter performance: A method for operating a filter assembly having a filter medium includes applying a constant or nearly constant static DC potential to dust entering the filter assembly and the filter medium, passing dust-laden gas through the filter medium in a first direction through the filter assembly while the filter medium... Agent: Patrick W. Rasche (23437) Armstrong Teasdale LLP

20070089603 - Seal for gas chromatography: A seal forming a fluid tight connection between a gas chromatography column and a sample inlet assembly is disclosed. The seal is formed by a metal injection molding process. The seal has a first surface adapted for sealing with the sample inlet assembly and a second surface adapted for sealing... Agent: Agilent Technologies Inc.

20070089604 - Novel chromatographic stationary phase: s

20070089605 - Filtration method and a filter device for removing impurities from the air of a limited space and an apparatus for removing carbon dioxide from the air of an air-raid shelter: A filtering method and a filter device (10) for removing impurities from the breathing air (24) in a room, an air raid shelter or a vehicle. According to the filtering method, the air to be filtered is driven through a carbon dioxide filter (13) by a fan (15), with the... Agent: Kubovcik & Kubvbcik The Farragut Building

20070089606 - Systems and methods for controlling foaming: A foam controlling system uses electromagnetic energy to cut foam on the surface of a solution or liquid in a processing tank into at least two portions prior to the foam propagating and reaching the perimeter of the tank such that currents within the solution or liquid dissipate at least... Agent: Knobbe Martens Olson & Bear LLP

20070089607 - Methods and apparatus for manufacturing and assembling a baghouse bag filter tensioning assembly: A method of assembling a baghouse bag filter tensioning assembly is provided. The assembly includes a compressible spring having a progressively increasing spring rate. The spring rate facilitates induction of a substantially constant spring tension over a range of pre-determined operating conditions. The method includes coupling the spring to a... Agent: John S. Beulick (17851)

20070084339 - Methods and systems for detecting baghouse filter leaks: A method of detecting leaks in the filter bags of a baghouse filter chamber that includes determining when the filter bags have been cleaned and, during a post-cleaning period after the cleaning of the filter bags, determining whether the opacity level of the exhaust of the baghouse filter chamber exceeds... Agent: Sutherland Asbill & Brennan LLP

20070084340 - Adjustable gas-liquid centrifugal separator and separating method: An adjustable type guide vortex gas-liquid separating apparatus is provided, it comprises a case, a vortex flow guide spiral pipe, a mist eliminator, an adjusting valve and a γ ray phase volume fraction meter. Its separating method is to make the oil-gas-water multiphase flow move in vortex, and thus to... Agent: Knobbe Martens Olson & Bear LLP

20070084341 - Natural gas dehydrator and system: The present invention provides a natural gas dehydrator and method for recirculation of gaseous or combustible materials so that they are not released into the atmosphere and to provide fuel for the process. Likewise, liquid hydrocarbons are collected.... Agent: Peacock Myers, P.C.

20070084342 - Cylinder filling oxygen concentrator: An energy efficient oxygen concentrator for filling high pressure portable cylinders with medical oxygen for use by ambulatory patients. Two compressors provide two pressurized air sources, one for operating an oxygen concentrator to provide a stream of oxygen enriched gas, and the other for driving a pressure intensifier for filling... Agent: Macmillan Sobanski & Todd, LLC

20070084343 - Solid/fluid contact treatment apparatus: A plurality of fluid feed pipes having fluid percolation walls are arranged in a container, through which solid particles move downward, and the fluid passes through the pipes so that the contacts between the solid particles and the fluid are made with a low pressure loss. A plurality of solid... Agent: Morgan Lewis & Bockius LLP

20070084344 - Gas collection method and apparatus therefor: Liquid film 7 is formed on the surface of a porous body 2 provided with a hydrophobic layer 6a and hydrophilic layer 6b, by moving thereon an ionic liquid having a selective absorption capacity of specific gas, and the specific gas within the gas to be processed is absorbed into... Agent: Burr & Brown

20070079701 - Powered air purifying respirator with battery passivation sensing/correction and method therefor: A powered air purifying respirator and method for directing a forced flow of air to a wearer. A battery operatively powers a fan fluidly coupled with the air flow path which exhibits, in some circumstances, a passivation. A voltage delay sensing circuit, operatively coupled to the battery, provides an indication... Agent: 3m Innovative Properties Company

20070079702 - Hydrocarbon emission scavenger: A hydrocarbon adsorber and a thermoplastic resin combined and formed to a porous scavenger for insertion into the air intake system of a motor vehicle engine. The resulting porous scavenger adsorbs volatile hydrocarbon molecules from raw fuel remaining in the air intake when the engine is shut off. The adsorbed... Agent: Mti - Intellectual Property Harter, Secrest & Emery, LLP

20070074628 - Coalescing filtration medium and process: A coalescing filtration medium is disclosed for removing liquid aerosols, oil and/or water from a gas stream. The medium contains a nanofiber web of at least one nanofiber layer of continuous, substantially polyolefin-free, polymeric nanofibers, each nanofiber layer having an average fiber diameter less than about 800 nm and having... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center