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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8147597 | Oxygen concentration system The present system is an adsorption system (100) for separating air into a concentrated gas component, which has an air supply, a compressor (115) for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve mate... | 04/03/2012 |
| 7959720 | Low mesopore adsorbent contactors for use in swing adsorption processes The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent ... | 06/14/2011 |
| 7837771 | Rotary cylinder dual diverter valve A rotary cylinder valve comprises a valve body, a valve cylinder rotationally mounted within the valve body, and first, second, third and fourth valve seats coupled to the valve body. The valve cylinder has a first position in which dual independent flow paths conne... | 11/23/2010 |
| 7763103 | Oxygen concentration system The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the co... | 07/27/2010 |
| 7753996 | Portable gas fractionalization system A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at ... | 07/13/2010 |
| 7695553 | Twin blowers for gas separation plants The present invention relates to a method of reducing or elimination pressure pulsations and noise created by blowers in a gas separation plant. The method employs two identical and 180° out of phase blowers synchronized together to provide both a large flow of air... | 04/13/2010 |
| 7637989 | Rapid cycle pressure swing adsorption oxygen concentration method and mechanical valve for the same A rapid cycle pressure swing adsorption oxygen concentration method uses a mechanical valve that has at least one cam-actuated flow control valve to switch flow of fluid, such as compressed air coming into a sieve tank that is fitted with molecular sieve materials. ... | 12/29/2009 |
| 7550036 | Gas concentrator The present invention relates to a gas concentrator, which produces concentrated gas by applying a pressure difference to adsorbent having selective adsorption property to specific gas from mixed gas and by separating the specific gas. According to the present inven... | 06/23/2009 |
| 7494533 | Systems for purifying gases having organic impurities using granulated porous glass Methods and apparatus for purifying gases having organic impurities, including the use of granulated porous glass. A system for purifying an impure gas includes a source of an impure gas, a purification element operatively associated with the source of impure gas fo... | 02/24/2009 |
| 7442233 | Integrated heavy hydrocarbon removal, amine treating and dehydration The present invention is directed to an improved integrated process for the removal of heavy hydrocarbons, carbon dioxide, hydrogen sulfide, and water from a raw natural gas feed stream. More specifically, the integrated process of the present invention comprises a ... | 10/28/2008 |
| 7429289 | High output concentrator A multi-chamber canister for a pressure swing absorption system within a general housing assembly. The chambers include a first molecular sieve chamber for receiving a first molecular sieve for separating air from the ambient environment into a concentrated gas and ... | 09/30/2008 |
| 7427315 | High output concentrator A multi-chamber canister for a pressure swing absorption system within a general housing assembly. The chambers include a first molecular sieve chamber for receiving a first molecular sieve for separating air from the ambient environment into a concentrated gas and ... | 09/23/2008 |
| 7419534 | Cooler using filter with dehumidifying function A cooling apparatus is disclosed for cooling and dehumidifying the inside of a device such as an electronic device installed outdoors The cooling apparatus of the invention comprises a set of dehumidifying parts, each arranged at an open air intake side and an air e... | 09/02/2008 |
| 7407528 | Method for operating an air fractionization installation for obtaining oxygen on board an aircraft The method serves for operating an air fractionization installation for obtaining oxygen on board an aircraft, with at least two molecular sieve chambers. A part mass flow of the oxygen obtained in the respective adsorbing molecular sieve chamber is supplied for flu... | 08/05/2008 |
| 7396388 | Integrated heavy hydrocarbon removal, amine treating and dehydration The present invention is directed to an improved integrated process for the removal of heavy hydrocarbons, carbon dioxide, hydrogen sulfide, and water from a raw natural gas feed stream. More specifically, the integrated process of the present invention comprises a ... | 07/08/2008 |
| 7393382 | Temperature-based breakthrough detection and pressure swing adsorption systems and fuel processing systems including the same Pressure swing adsorption (PSA) assemblies with temperature-based breakthrough detection systems, as well as to hydrogen-generation assemblies and/or fuel cell systems containing the same, and to methods of operating the same. The detection systems are adapted to de... | 07/01/2008 |
| 7384454 | Combined water-from-air and water-from-exhaust system A water production unit is provided having two modes of operation for extracting water from exhaust and air. ... | 06/10/2008 |
| 7368005 | Portable oxygen concentrator A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the firs... | 05/06/2008 |
| 7350521 | Simplified dual mode medical oxygen concentrator Oxygen concentrator system having a portable oxygen generator unit adapted to generate a non-humidified oxygen-rich gas and a stationary base unit adapted to generate a humidified oxygen-rich gas, wherein the portable oxygen generator unit and the stationary base ar... | 04/01/2008 |
| 7329304 | Portable oxygen concentrator A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the firs... | 02/12/2008 |
| 7326278 | Advanced contaminate treatment system Decontamination systems and methods are disclosed. In one embodiment, a system comprises a first adsorption/desorption subsystem that is configured to receive a contaminated gaseous solution and remove substantially all of the contaminants from the contaminated gase... | 02/05/2008 |
| RE40006 | Flow regulated pressure swing adsorption system Pressure swing adsorption (PSA) separation of a gas mixture is performed in an apparatus with a plurality of adsorbent beds. The invention provides rotary multiport distributor valves to control the timing sequence of the PSA cycle steps between the beds, with flow ... | 01/22/2008 |
| 7316731 | Adsorption of contaminants from gaseous stream and in situ regeneration of sorbent Contaminant is removed from a gaseous stream, especially an air stream bearing the contaminant, by adsorption on a sorbent which is a resiliently compressible, electrically conductive, activated carbon cloth material, leaving a gaseous stream liberated of the contam... | 01/08/2008 |
| 7303611 | Humidity adjusting apparatus using desiccant A humidity adjusting apparatus includes at least one desiccant linearly reciprocated between a dehumidifying unit and a drying unit, and a motor for driving the desiccant to be moved, thereby improving dehumidifying and humidifying efficiency. ... | 12/04/2007 |
| 7300498 | Regeneration of adsorption beds using heated nitrogen A system and method for removal of solvents, or other materials, from an exhaust stream, uses an active adsorption bed and a bed that is periodically regenerated. Electrically heated nitrogen may be used to regenerate the beds. A portion of the exhaust stream to be ... | 11/27/2007 |
| 7294173 | Method and system for desorption and recovery of desorbed compounds A method for desorption and recovery of desorbed compounds, including the steps of generating a recirculating stream of inert gas (1), which passes through the material (2) to be desorbed, heating such inert gas stream to a temperature sufficient to ca... | 11/13/2007 |
| 7273051 | Dual mode medical oxygen concentrator Oxygen generation system having a portable oxygen generator unit including a portable air separation device for the generation of an oxygen-rich gas, a primary gas pump including means to supply air to the portable air separation device, a primary motor to drive the... | 09/25/2007 |
| 7264651 | Adsorption process and system using multilayer adsorbent beds containing regenerator section For PSA or TSA prepurifiers, the temperature rise on adsorption is particularly troublesome when the temperature rise reaches the end of the bed at the end of the adsorption step. This results in an increase in the CO2 and N2O concentration at ... | 09/04/2007 |
| 7204249 | Oxygen conserving device utilizing a radial multi-stage compressor for high-pressure mobile storage An oxygen concentrator is utilized in combination with a compressor, preferably a radial compressor, to provide a highly enriched and compressed oxygen gas in a mobile container such as a gas cylinder. The combination and method of production provides for the facile... | 04/17/2007 |
| 7199069 | Method for destruction of organic compounds by co-oxidation with activated carbon A method for oxidizing carbon adsorbable organic compounds in a controlled manner within a bed of activated carbon. The bed of activated carbon is exposed to a source of molecular oxygen, such as air, and is controlled within a temperature range whereby the molecula... | 04/03/2007 |
| 7182802 | Evaporative emissions filter An evaporative emissions filter for an engine air induction system. The evaporative emissions filter includes a hydrocarbon vapor-adsorbent member disposed within the air induction system. A mechanism is provided for mounting the evaporative emissions filter within ... | 02/27/2007 |
| 7179326 | Oxygen concentration apparatus An oxygen concentrating apparatus 10 for generating oxygen enriched gas by adsorbing and separating nitrogen gas from air, comprises; an oxygen concentrator 40 having an adsorption cylinder filled with adsorbent for adsorbing nitrogen gas, also having ... | 02/20/2007 |
| 7175698 | Canister In a canister, an activated charcoal layer is placed in a fluid passage by which an air intake port is connected to a charge port or purge port, and a chamber dividing the charcoal layer into sections so as to traverse the fuel passage is defined by a grid and a fil... | 02/13/2007 |
| 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 |
| 7160361 | Evaporative emission treatment device Disclosed herein an evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption component comprising an activated carbon textile made from a novoloid precursor. ... | 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 |
| 7156903 | Sound enclosure for portable oxygen concentrators A portable pressure swing adsorption apparatus and conservation device for medical use, and a sound enclosure for the apparatus having two isolating sections to enclose the apparatus, the enclosure having an inlet in one of the sections for allowing ambient air into... | 01/02/2007 |
| 7135059 | Portable gas fractionalization system A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at ... | 11/14/2006 |
| 7122073 | Low void adsorption systems and uses thereof A low void pressure swing adsorption system wherein flow movement and pressure pulse are influenced from the same source comprised of at least one hermetically sealed vessel containing an adsorbent bed with an inlet coupled to the adsorbent bed by way of an inlet he... | 10/17/2006 |
| 7115152 | Four bed regenerable filter system A regenerable filter system includes a flow path along which a stream of fluid flows between an inlet and an outlet. A first filtering unit is located in the flow path. The first filter unit includes first and second regenerable filter beds, wherein each bed has a f... | 10/03/2006 |
