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| Number | Title | Issue Date |
| 8142549 | Purification of fluorine containing gases and systems and materials thereof A method of reducing moisture in a fluorine-containing gas is described. The method may include the steps of providing a purifier material that includes elemental carbon, and flowing the unpurified fluorine-containing gas having an unpurified moisture concentration ... | 03/27/2012 |
| 7981194 | Air drying arrangement An air drying arrangement for a commercial vehicle is provided having two or more desiccant canisters arranged in parallel on a single air dryer body. The arrangement may include an coupling device that attaches to the body and allows the two or more desiccant conta... | 07/19/2011 |
| 7524358 | Production of high purity and ultra-high purity gas Trace amounts of carbon monoxide and optionally hydrogen are removed from gaseous feed streams by passing the feed stream through a carbon monoxide adsorbent (33) prior to passing it through a supported metal catalyst (34). The invention saves signific... | 04/28/2009 |
| 7431900 | Hydrogen peroxide vapor system with replaceable desiccant cartridge A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assemb... | 10/07/2008 |
| 7338552 | Process and device for separating oil and volatile organic components from pressurized gases of a compression system A process and device for separating oil and volatile organic components from pressurized gases of a compression system in which, before oxidation-catalytic separation, a physical separation is performed to protect the oxidation-catalytic separator against a large am... | 03/04/2008 |
| 7291565 | Method and system for treating a substrate with a high pressure fluid using fluorosilicic acid A method and system is described for treating a substrate with a high pressure fluid, such as carbon dioxide in a supercritical state. A process chemistry is introduced to the high pressure fluid for treating the substrate surface. The process chemistry comprises fl... | 11/06/2007 |
| 7189280 | Adsorptive separation of gas streams A method and system for adsorptive separation of a feed gas mixture provides for increased system efficiency and product recovery. The requirement for purge gas streams consuming desired product gas to regenerate adsorption beds is reduced through an inventive metho... | 03/13/2007 |
| 7168224 | Method of making a packaged radiation sensitive resist film-coated workpiece The present invention includes a packaged coated workpiece. The packaged coated workpiece has: (1) a workpiece coated with a resist film sensitive to optical radiation, particulates or chemical contaminants; (2) an inner barrier sealed to enclose the coated workpiec... | 01/30/2007 |
| 7166149 | Adsorption process for continuous purification of high value gas feeds Using a high pressure rotary adsorbent wheel, a high value compressed gas feed can be purified by concentrating the impurity such as water, condensing it out, before final purification. Instead of exhausting gas from the system, the effluent can be put back into the... | 01/23/2007 |
| 7163573 | Chemical filter medium, chemical filter including the chemical filter medium and method for manufacturing the chemical filter A chemical filter medium for removing ozone and nitrogen oxide includes a first ozone absorption layer for mainly removing ozone having a filtering base material for removing ozone, a first nitrogen oxide absorption layer for mainly removing nitrogen oxide formed on... | 01/16/2007 |
| 7160360 | Purification of hydride gases Purification material for removing a contaminant from an impure hydride gas comprising an adsorbent comprising a reduced metal oxide on a porous support and a desiccant. The porous support may be selected from the group consisting of activated carbon, alumina, silic... | 01/09/2007 |
| 7160438 | Process for removal of nitrogen containing contaminants from gas oil feedstreams The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises firs... | 01/09/2007 |
| 7156900 | Adsorber station and the use thereof The invention relates to an adsorber station with a first adsorber (A) and a second adsorber (B). A first closed loop pipeline (1) is connected to the adsorbers (A, B) and is provided with product gas feed line valves (4A, 4B) and regeneration g... | 01/02/2007 |
| 7143589 | Sorption cooling systems, their use in automotive cooling applications and methods relating to the same A sorption cooling system for providing cooled air to the cabin of a vehicle. The sorption cooling system includes an evaporator, a condenser adapted to fluidly communication with the evaporator, and a plurality of adsorbent beds adapted for fluid communication with... | 12/05/2006 |
| 7118614 | Air dryer An air dryer comprises a base member, a main cartridge and an intermediate cartridge. The air dryer is capable of drying and possibly filtering and/or cleaning air passing there through. The intermediate cartridge, capable of drying and possibly filtering and/or cle... | 10/10/2006 |
| 7101416 | Method for purification of lens gases used in photolithography and metrology A method and composition for the removal of contaminants in a gas stream used in the contamination sensitive processes of photolithography and metrology are described. The synergistic effect of a combination of an electropositive metal component, a high silica zeoli... | 09/05/2006 |
| 7100305 | Air dryer mounting assembly An improved system and method for mounting an air dryer is provided. The improved system and method employs a single centralized special fitting that secures the air dryer manifold to a reservoir. The bore in which the fitting is disposed is used to communicate air ... | 09/05/2006 |
| 7087156 | Process for removal of nitrogen containing contaminants from gas oil feedstreams The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises firs... | 08/08/2006 |
| 7078011 | Method of storing and supplying hydrogen to a pipeline A method of storing and supplying a gaseous hydrogen product to a pipeline under a product purity specification in which a hydrogen stream made up of gaseous hydrogen is compressed to form a compressed hydrogen stream and introduced into a salt cavern for storage. A... | 07/18/2006 |
| 7063732 | High-capacity sulfur adsorbent bed and gas desulfurization method A fuel processing system and method for processing fuel for a fuel cell having a first adsorbent bed for adsorption of high molecular weight organic sulfur-containing compounds and inorganic sulfur-containing compounds, and a second adsorbent bed for adsorption of l... | 06/20/2006 |
| 7058108 | Carbon dioxide laser resonator gas The present invention is directed, in part, to a carbon dioxide laser resonator gas comprising carbon dioxide, helium, and nitrogen and having a total halocarbon concentration less than about 100 parts per trillion. In one embodiment, the total halocarbon concentrat... | 06/06/2006 |
| 7044662 | Developing photoresist with supercritical fluid and developer An apparatus for developing a polymeric film without the need for a water rinse step is disclosed. An object having a surface supporting a polymeric film is placed onto a support region within a pressure chamber of the apparatus. A fluid and developer is introduced ... | 05/16/2006 |
| 6994796 | Method of removing filter from filter cap A filter assembly includes a filter cap having a filter chamber defined therein. The filter cap includes a side wall having an opening defined therein. A fluid filter is positioned in the filter chamber. A spring-loaded detent button is movably secured to the filter... | 02/07/2006 |
| 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 |
| 6918953 | Modular pressure swing adsorption process and apparatus A pressure swing adsorption (PSA) system including a first group of PSA modules having a plurality of first PSA modules, and a second group of PSA modules having a plurality of second PSA modules. The system includes a feed gas manifold, a product manifold, and a wa... | 07/19/2005 |
| 6911064 | Method and apparatus for the preparation of clean gases A method and apparatus for preventing contamination of a substrate or a substrate surface, and particularly relates to prevention of contamination of raw materials, semi-finished products, base materials of products and substrate surface in a high-tech industry such... | 06/28/2005 |
| 6736879 | Process to prepare low carbon disulfide containing dimethyl sulfide An adsorption method is disclosed for removal of acid gas from a sulfur compound stream. The method relates to a novel process to remove acid gas from a sulfur compound stream by adsorption on an adsorption media adsorbent followed by regeneration of the adsorption ... | 05/18/2004 |
| 6733570 | Method and apparatus for the preparation of clean gases A method and apparatus for preventing contamination of a substrate or a substrate surface, and particularly relates to prevention of contamination of raw materials, semi-finished products, base materials of products and substrate surface in a high-tech industry such... | 05/11/2004 |
| 6730143 | Truck air dryer purge air cleaner Oil entrained in purge air from a vehicle air dryer is directed through a purge air cleaner to remove the oil before discharge of the purge air to the environment. An absorbent material, perferably hydrophobic, is enclosed in the purge air cleaner, which may be safe... | 05/04/2004 |
| 6723154 | Method and device for cleaning air in a compressed air system Air in a compressed air system is cleaned by consecutively passing the air through a pre-filter, silica gel with large pores, silica gel with fine pores, a molecular sieve, and a fine filter. ... | 04/20/2004 |
| 6572681 | Purification of gases Carbon monoxide (CO) is removed from a nitrogen and CO containing gas stream such as feed air to an air separation process for recovery of a nitrogen product gas stream or a nitrogen product gas stream from an air separation process by adsorbing CO from s... | 06/03/2003 |
| 6557459 | Nitrogen generator for wine or champagne preservation and dispensing apparatus The present invention relates to an apparatus for preserving and dispensing wine or champagne. The apparatus provides a housing having a container support for holding wine or champagne bottles, a plurality of removable stoppers for insertion in the bottle... | 05/06/2003 |
| 6511528 | Purification of carbon dioxide Commonly available carbon dioxide may contain unacceptable amounts of compounds containing greater than about ten carbon atoms, sulfur-containing materials, and nitrogen-containing materials which are particularly detrimental to semiconductor and silicon ... | 01/28/2003 |
| 6475265 | Pressure swing adsorption method for production of an oxygen-enriched gas The present invention is a two stage PSA process for producing high purity oxygen from a feed air stream. Water, carbon dioxide and nitrogen are removed in a first stage. An oxygen selective adsorbent is used to adsorb oxygen in the second stage. High pur... | 11/05/2002 |
| 6425939 | Process for the production of hydrogen using a carbonated adsorbent with selected dubinin parameters A process for the purification of a gaseous hydrogen flow containing one or more gaseous impurities from the group consisting of carbon monoxide, water vapor, nitrogen, H2 S, chlorine, C1 -C3 light alcohols, ammonia, carbo... | 07/30/2002 |
| 6364937 | Humidity control system A humidity control system. The system comprises a housing containing one or more hygroscopic monoliths to provide, and passively sustain, the capacity to control the humidity on an intermittent basis. The present invention may be employed either independe... | 04/02/2002 |
| 6346138 | Purification of hexafluoroethane This invention is directed to a method and system for purifying hexafluoroethane near its critical temperature and pressure, particularly where the hexafluoroethane contains at least about 1 ppb by weight of a non-volatile residue. A combination of a sand... | 02/12/2002 |
| 6340381 | Method and apparatus for the preparation of clean gases A method and apparatus for preventing contamination of a substrate or a substrate surface, and particularly relates to prevention of contamination of raw materials, semi-finished products, base materials of products and substrate surface in a high-tech in... | 01/22/2002 |
| 6319303 | Process for purifying a gas and corresponding system In this process for purifying a gas by adsorption of a first impurity and of a second impurity, at least two main adsorbers (5A, 5B) and at least one auxiliary adsorber (6A, 6B) are used, the main adsorbers comprising a packing (8A, 8B, 9A, 9B) for adsorb... | 11/20/2001 |
| 6139604 | Thermally powered oxygen/nitrogen plant incorporating an oxygen selective ion transport membrane A low energy cost process for the co-production of oxygen and nitrogen employing a fuel tube extending into the first oxygen selective ion transport membrane whereby fuel is introduced adjacent to the closed end and flows cocurrently with oxygen containin... | 10/31/2000 |
