Deflecting Patents (Class 95/267)
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Publication number: 20090007786Abstract: Concentrating particles in a turbulent gas flow may include receiving, in a receptacle, a turbulent gas flow that includes particles. The concentration of particles in a gas flow exiting the receptacle at a first port is increased as compared with a concentration of the particles in the gas flow received by the receptacle. The increased concentration of particles is accomplished by removing a portion of the gas flow by using a second port, and fluidly communicating the gas flow through a tube in the receptacle. The tube has a smaller diameter at the end of the tube at which the gas flow exits the tube than diameter at the end of the tube at which the gas flow is received.Type: ApplicationFiled: March 12, 2008Publication date: January 8, 2009Applicant: L-3 Communications Security and Detection Systems, Inc.Inventors: Thomas D. Plamondon, Nikolay Rolshud, Peter F. Cram, Mark Fraser
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Publication number: 20080257148Abstract: The present invention provides systems and methods for organic particulate filtration. An organic particulate filtration system is implemented within a fossil fuel power plant combustion system. The filtration system comprises a gas flow, in which gas are entrained particulates. The filtration system has a collection hopper located proximate a precipitator collection area. Within the collection hopper, a particulate baffle is provided in a downward-angled orientation. The particulate baffle is enabled to trap particulate, such as organic particulate, in the collection hopper, thereby preventing particulate re-entrainment in the gas flow.Type: ApplicationFiled: April 21, 2008Publication date: October 23, 2008Applicant: The Southern CompanyInventor: Gerry E. KLEMM
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Patent number: 7431748Abstract: A separation device for the removal of impurities extracted from a flexible conduit from a fuel such as liquefied petroleum gas is described having a housing with an inlet and an outlet, a means for channeling the fuel from the inlet onto an impingement surface in fluid communication with the fuel stream, the surface acting to condense the impurities, a gravity separation means for collecting the impurities removed from the fuel, and a means for channeling the fuel into an outlet.Type: GrantFiled: April 15, 2005Date of Patent: October 7, 2008Assignee: Enerco Group, Inc.Inventors: Brian S. Vandrak, Carl W. Suchovsky
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Publication number: 20080229925Abstract: In order to provide a device for separating wet paint overspray from an exhaust air flow containing overspray particles, wherein the overspray particles pass into the exhaust air flow in an application region of a painting assembly and wherein the device comprises at least one separation device for separating the overspray from at least a part of the exhaust air flow, in which clogging of a wall surface of the device with wet paint overspray is prevented, it is proposed that the device is divided into a plurality of sections below the application region, wherein at least one separation device is provided in one of the sections, and that the device comprises at least one air curtain producing device for generating an air curtain on a wall surface, which delimits the flow path of the exhaust air flow and is arranged on the at least one flow guide element.Type: ApplicationFiled: April 4, 2008Publication date: September 25, 2008Applicant: DURR SYSTEMS GMBHInventors: Dietmar Wieland, Jens Holzheimer
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Patent number: 7402196Abstract: A mist elimination device in the form of a hood for the removal of moisture from a gas stream treated by a WESP includes a series of gutters on the outer surface of the hood to trap liquid droplets and direct the moisture to channels to drain to the lower region of a housing. Gutters are also provided on the interior surface of the hood to catch liquid droplets carried by the gas stream into the interior of the hood.Type: GrantFiled: July 16, 2004Date of Patent: July 22, 2008Assignee: Turbosonic Inc.Inventor: Robert A. Allan
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Patent number: 7390341Abstract: The invention relates to a liquid/gas state separating device capable of separating the molecules of vapour (V) of a liquid evaporating under the effect of a partial vacuum (31) maintained by pumping means from drops (L) of said liquid carried along by the flow of vapour (V), characterised in that it comprises a vapour deflector (50) and a drop collector (60), the vapour deflector (50) imposing at least one sudden change of direction on the flow of vapour (V).Type: GrantFiled: November 13, 2002Date of Patent: June 24, 2008Assignee: Thermagen SAInventor: Pierre Jeuch
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Patent number: 7374593Abstract: A particle separator for separating particles and/or materials entrained in a flow of air is disclosed. The particle separator includes an annular inlet defined by an outer shroud and an inner shroud. An upper forward flow divider and a lower forward flow divider is disposed within the annular inlet. A first and second radially spaced annular flow divider is adapted for directing said flow of air into at least a first, second, third and fourth flow passageway. At least four curved flow splitters are utilized for separating particles and/or materials entrained in the flow of air as it passes through the first, second, third and fourth flow passageways.Type: GrantFiled: December 1, 2006Date of Patent: May 20, 2008Assignee: Rolls-Royce North American Technologies, Inc.Inventor: Philip Harold Snyder
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Patent number: 7344576Abstract: Methods of separating fluids using capillary forces and/or improved conditions for are disclosed. The improved methods may include control of the ratio of gas and liquid Reynolds numbers relative to the Suratman number. Also disclosed are wick-containing, laminated devices that are capable of separating fluids.Type: GrantFiled: March 1, 2005Date of Patent: March 18, 2008Assignee: Battelle Memorial InstituteInventors: Ward E. TeGrotenhuis, Victoria S. Stenkamp
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Patent number: 7338552Abstract: 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 amount of oil being entrained in a surge in the pressurized gases. The resulting oil which has been separated in this physical oil separation is then fed back into the pressurized gas flow which is flowing to oxidation-catalytic separation in metered amounts. This results in the oil concentration in the pressurized gas entering the oxidation-catalytic separation means being maintained such that oxidation-catalytic separation can be carried out effectively and under optimum operating conditions without there being an adverse effect on operation by oil concentrations which are suddenly high for an instant.Type: GrantFiled: May 5, 2005Date of Patent: March 4, 2008Assignee: BAUER COMP Holding AGInventor: Heinz Bauer
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Patent number: 7314495Abstract: The present invention relates to a process and a device for eliminating particles from a stream of fluid, having a channel for turbulent flow of the fluid and a series of objects placed along the channel.Type: GrantFiled: October 21, 2005Date of Patent: January 1, 2008Assignees: Institut Francais du PetroleInventors: Francis A. L. Dullien, Jean-Charles Viltard
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Publication number: 20070266854Abstract: A gas-liquid separation enhancer includes a plurality of longitudinally extending turning vanes distributed within a bent conduit section. At least a portion of the vanes have a bend that redirects a portion of a flowing gas stream from an initial direction to a final direction. Each of the vanes have a first end and a second end and are positioned in the bent conduit section to direct a portion of any liquid contacting the vanes to either the first end or the second end when the gas-liquid separation enhancer is incorporated into an outlet conduit. The separation is positioned in an outlet conduit such that captured liquid droplets are returned to the vessel from which they originate.Type: ApplicationFiled: May 19, 2006Publication date: November 22, 2007Inventor: Paul Keith Scherrer
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Publication number: 20070227356Abstract: A gas-solids reaction system is provided for improving product recovery in a multiple reactor reaction system. The solids of the product gas-solids flows from the multiple reactors are separated out in a separation vessel having a baffled transition zone. Additional product vapor is stripped from the solids as the solids pass through the baffled transition zone. The solids are then returned to the multiple reactors.Type: ApplicationFiled: March 28, 2007Publication date: October 4, 2007Inventor: James H. Beech
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Patent number: 7232477Abstract: An inlet for an environmental air monitor is described wherein a pre-separator interfaces with ambient environment air and removes debris and insects commonly associated with high wind outdoors and a deflector plate in communication with incoming air from the pre-separator stage, that directs the air radially and downward uniformly into a plurality of accelerator jets located in a manifold of a virtual impactor, the manifold being cylindrical and having a top, a base, and a wall, with the plurality of accelerator jets being located in the top of the manifold and receiving the directed air and accelerating directed air, thereby creating jets of air penetrating into the manifold, where a major flow is deflected to the walls of the manifold and extracted through ports in the walls.Type: GrantFiled: October 18, 2004Date of Patent: June 19, 2007Assignee: Los Alamos National Security, LLCInventor: John C. Rodgers
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Patent number: 7232878Abstract: A process for the separation of volatile material from particulate polymer which has been substantially freed from unreacted monomer in an earlier separation step, comprising (a) feeding the particulate polymer to a purge vessel, optionally causing it to move through the vessel in substantially plug-flow mode, (b) heating the particulate polymer in the purge vessel to a temperature greater than 30° C. but insufficiently high to cause the particles to become agglomerated, and/or maintaining the polymer at a temperature in this range in the purge vessel, (c) feeding air to the purge vessel counter-current to the movement of the particulate polymer to remove volatile material therefrom, (d) removing the particulate polymer from the purge vessel. Preferably the particulate polymer fed to the purge vessel is caused to move through the vessel in substantially plug-flow mode. The process is particularly suitable for polyethylene.Type: GrantFiled: April 18, 2002Date of Patent: June 19, 2007Assignee: BP Chemicals LimitedInventors: Gerald Mulgrew, Gary Lindsay Pitman
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Patent number: 7198659Abstract: A containment apparatus for collecting liquids including oil and water emitted from a gas buster exhaust stack. The containment includes baffling and a liquid float and discharge line for returning the liquids to a reservoir. Multiple containments may be connected to contain potentially greater discharges.Type: GrantFiled: April 23, 2004Date of Patent: April 3, 2007Inventor: Robert Paul Fanguy
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Patent number: 7105040Abstract: A wine must pump (10) for pumping a wine product (23) such as must or pomace, has an intake port (14) for receiving the wine product (23), a discharge port (16) for discharging the wine product (23) under pressure, vacuum chamber (20), connected to the inlet port (14), for receiving and separating wine product (23) from air, a pressure valve (26) for allowing the wine product (23) to remove from the vacuum chamber (20) and an air pump (18) for providing the vacuum and forced air. A thermal transfer unit (28) removes heat from air exiting the air pump (18) such that the wine product (23) is not harmed thereby. A demister (39) removes moisture from recycled air entering the air pump (18). Silencers (74), (76) and (86), and an air pump sound box (110), provide for the quiet operation of the wine must pump (10).Type: GrantFiled: August 5, 2003Date of Patent: September 12, 2006Assignee: Therma Corporation, Inc.Inventors: Michael G. Fisher, Eric R. Garcia
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Patent number: 7077887Abstract: Impact type gas-particle separation is applied to ultra-fine particles by judiciously altering the aerodynamic drag on the particles with respect to their inertia by operation at sub-atmospheric pressures. An impact separator has a housing having a channel in which particles flow in a fluid such as air, a purified gas or mixtures thereof. A plurality of blades are placed in the channel for affecting the motion of the particles and the fluid with respect to each other. A second channel branches from the first channel to receive particles diverted and separated from the flow of the fluid in the first channel. A flow mechanism creates a sub-atmospheric pressure in the channel.Type: GrantFiled: May 21, 2003Date of Patent: July 18, 2006Assignee: University of MassachusettsInventors: Thomas R. Blake, Karl Jakus
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Patent number: 7004998Abstract: A gas liquid separator comprises an elbow into which is inserted a fishbone shaped impingement device comprising downward sloping vanes, the vanes preferably attached to a central spine within the elbow. The vanes may have an opening along the length thereof, and a bottom lip to channel accumulated liquid to one or more collection points, preferably the elbow internal wall. The device is robust, of simple construction, and exhibits relatively low pressure drop.Type: GrantFiled: September 17, 2003Date of Patent: February 28, 2006Assignee: Eastman Chemical CompanyInventor: Paul Keith Scherrer
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Patent number: 6962619Abstract: An air decontamination system that cleans air which has been contaminated by a terrorist attack or other means of contamination. The air is drawn into the system, cleaned through the use of filters, and exits the system into an enclosed area where people have gathered to await passage of the danger. The unit is easily turned on and off via a switch.Type: GrantFiled: June 24, 2004Date of Patent: November 8, 2005Inventors: Richard DeRosa, Robert Hockenberry
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Patent number: 6875247Abstract: Methods of separating fluids using capillary forces and/or improved conditions for are disclosed. The improved methods may include control of the ratio of gas and liquid Reynolds numbers relative to the Suratman number. Also disclosed are wick-containing, laminated devices that are capable of separating fluids.Type: GrantFiled: December 5, 2001Date of Patent: April 5, 2005Assignee: Battelle Memorial InstituteInventors: Ward E. TeGrotenhuis, Victoria S. Stenkamp
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Patent number: 6852146Abstract: A vane-type mist eliminator is provided with pocket-like channels extending along the lengths fo the vanes. The pockets allow droplets entrained in a gas stream to impinge and cling to the vane, and then drain, without being re-entrained in the gas stream because they are protected from the gas stream by a portion of the pocket which defines the channel. The device does not increase the pressure drop when compared with a similar device lacking the pockets, and allows for a higher throughput before breakthrough occurs.Type: GrantFiled: February 13, 2003Date of Patent: February 8, 2005Assignee: ACS Industries, LPInventors: Timothy L. Holmes, Roberto Sanchez, Kanti Patel, Mark Neuman
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Patent number: 6827761Abstract: Particles in a fluid flow are concentrated by a combination of electrical charging and focussing and passage through a virtual impact concentrator. The fluid is passed through an electrical charging section and an electrical focussing section and then to a virtual impact concentrator. The majority of charged particles in a selected size range are collected through a minor discharge passage extending axially from the virtual impact concentrator. The invention is particularly suitable for sampling engine exhaust gases and ambient aerosols.Type: GrantFiled: February 28, 2003Date of Patent: December 7, 2004Assignee: Her Majesty The Queen in Right of Canada as represented by the Minister of the EnvironmentInventor: Lisa A. Graham
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Patent number: 6797040Abstract: A device for separating gas and liquid/solid particles from a gas/liquid/solid particle mixture having a line in which the medium flows, a deflecting element situated in the line, which generates separating vortexes in the medium and thus separates gas from liquid/solid particles.Type: GrantFiled: October 18, 2002Date of Patent: September 28, 2004Assignee: Robert Bosch GmbHInventor: Thomas Lenzing
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Patent number: 6770121Abstract: The separator has a vane assembly made up of a number of corrugated vanes that are oriented with respect to each other so as to provide serpentine paths for the gas stream therethrough. As the gas stream flows through the serpentine paths, it changes direction and liquid in the gas stream impacts the surfaces of the vanes. The upstream section of the vane assembly has roughened surfaces to decrease the surface tension of the liquid, thereby causing the liquid to coalesce. The downstream section of the vane assembly has smooth surfaces so as to increase the surface tension of the liquid. Thus, the coalesced liquid flows from the roughened surfaces to the smooth surfaces where the liquid forms beads and drains by gravity.Type: GrantFiled: September 12, 2002Date of Patent: August 3, 2004Assignee: Harbison-Fischer, Inc.Inventor: Allen W. Sindel
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Publication number: 20040134352Abstract: A silica trap for a PSG deposition tool includes an expansion chamber, an inlet coupled to the expansion chamber to conduct an exhaust stream carrying silica powder from the PSG deposition tool into the expansion chamber so that the silica powder settles out of the exhaust stream to a bottom wall of the expansion chamber, and a discharge coupled to the expansion chamber to conduct the exhaust stream out of the expansion chamber.Type: ApplicationFiled: January 13, 2003Publication date: July 15, 2004Inventors: David Stacey, James Michael Bennett
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Patent number: 6758883Abstract: An apparatus for decreasing water vapor in a compressed gas, such as compressed air, using cooling. A pipe, tapered or not, is attached to the air inlet port of the main gas compressor tank, or in a secondary tank or other downstream device, such that the compressed gas is forced through the pipe and onto a heat conductive plate, where water vapor condenses and is drained away.Type: GrantFiled: September 23, 2002Date of Patent: July 6, 2004Inventors: George William Doak, Kenneth William Doak
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Patent number: 6753503Abstract: An oil separator usable with a welder and air compressor combination unit. The oil separator includes a cylindrical housing having an inlet that receives the stream of compressed air containing oil from the air compressor. Within the oil separator, there is a deflector baffle that redirects the flow of the oil to a swirling, downwardly directed path along the inner surface of the cylindrical housing where the air is separated out therefrom and passes upwardly to exit through a fluid outlet formed in the cover of the separator. The swirling oil flows downwardly through an annular slot formed between a circular plate and the inner surface of the cylindrical housing into a lower chamber where the oil is channeled by radially directed baffles into radial channels to redirect that oil toward an oil outlet at the center of the circular bottom where that oil exits to be re-circulated in the combination unit or for disposal.Type: GrantFiled: July 8, 2002Date of Patent: June 22, 2004Assignee: Illinois Tool Works Inc.Inventors: Herbert A. Bankstahl, Joseph Gitter
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Patent number: 6746503Abstract: A system for separating particles entrained in a fluid includes a base with a first channel and a second channel. A precision gap connects the first channel and the second channel. The precision gap is of a size that allows small particles to pass from the first channel into the second channel and prevents large particles from the first channel into the second channel. A cover is positioned over the base unit, the first channel, the precision gap, and the second channel. An port directs the fluid containing the entrained particles into the first channel. An output port directs the large particles out of the first channel. A port connected to the second channel directs the small particles out of the second channel.Type: GrantFiled: January 30, 2003Date of Patent: June 8, 2004Assignee: The Regents of the University of CaliforniaInventors: William J. Benett, Robin Miles, Leslie M. Jones, II, Cheryl Stockton
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Patent number: 6743280Abstract: The present invention relates to a method for separating entrained particles from a gas in a fluidised bed reactor system and fluidised bed reactor system including a particle separator for separating entrained particles from a gas. The particles are separated from the gas flowing in a direction other than the main gas flow direction, whereby the separation is multidimensional. The gas is allowed to pass from the outside of the configuration to the inside thereof and/or vice versa, wherein the particles are separated from the gas during such a travel. The gas flow can be multileveled.Type: GrantFiled: February 25, 2002Date of Patent: June 1, 2004Assignee: TPS Termiska Processer ABInventors: Lennart Ahlgren, Erik Rensfelt
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Publication number: 20040055466Abstract: An apparatus for decreasing water vapor in a compressed gas, such as compressed air, using cooling. A pipe, tapered or not, is attached to the air inlet port of the main gas compressor tank, or in a secondary tank or other downstream device, such that the compressed gas is forced through the pipe and onto a heat conductive plate, where water vapor condenses and is drained away.Type: ApplicationFiled: September 23, 2002Publication date: March 25, 2004Inventors: George William Doak, Kenneth William Doak
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Patent number: 6645274Abstract: A device and method for determining at least one parameter of a flowing gas-liquid mixture, including parameters of the intake air of internal combustion engines, uses a condensation trap to protect a measuring element from back flowing liquids, downstream from the measuring element.Type: GrantFiled: April 3, 2002Date of Patent: November 11, 2003Assignee: Robert Bosch GmbHInventors: Heinz Rilling, Gerhard Hueftle, Thomas Lenzing, Hans Beyrich, Roland Mueller, Uwe Konzelmann
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Publication number: 20030196548Abstract: An inertial inlet particle separator system (14) for a vehicle engine (12) is provided. The system (14) includes a particle sensor (60) that generates a contamination signal. An inertial inlet particle separator (56) is also included in the system (14) and has a fluid parameter adjusting system (58) mechanically coupled within the inertial inlet particle separator (56). A controller (62) is electrically coupled to the particle sensor (60) and the clean fluid parameter adjusting system (58). The controller (62) adjusting a fluid parameter of the inertial inlet particle separator (56) in response to the contamination signal. A method of performing the same is also provided.Type: ApplicationFiled: April 23, 2002Publication date: October 23, 2003Inventor: Peter A. Hartman
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Publication number: 20030188636Abstract: The present invention relates to a process and a device for eliminating particles from a stream of fluid, having a channel for turbulent flow of the fluid and a series of objects placed along the channel.Type: ApplicationFiled: June 4, 2001Publication date: October 9, 2003Inventors: Francis A.L. Dullien, Jean-Charles Viltard
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Publication number: 20030150198Abstract: The present invention is directed to the separation of dust and debris from flowing fluid. Conventional cyclone separators and centrifugal separators present a tradeoff between the extent of dust separation and the cross-sectional area of fluid flow. Thus, increased flow capacity cannot be achieved without reducing the amount of dust removal. In contrast, the present invention allows for the increase of cross-sectional flow area without jeopardizing dust removal. The apparatus is designed such that the cross-sectional area of fluid flow can be increased independently of the radii of curvature of the redirections. Therefore, dust is still effectively removed while the flow capacity of the system is increased. Also included herein are embodiments utilizing these concepts of dust separation vacuum cleaner embodiments.Type: ApplicationFiled: February 19, 2003Publication date: August 14, 2003Inventors: Lewis Illingworth, David Reinfeld
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Publication number: 20030075046Abstract: According to the related art, a separation of gas and liquid-solid particles from a medium flowing in a line is only known in a device having two outlet openings.Type: ApplicationFiled: October 18, 2002Publication date: April 24, 2003Inventor: Thomas Lenzing
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Publication number: 20030029318Abstract: Apparatus and a process are described, wherein furnace flue gas, containing moisture, is expanded through a pressure drop sufficient to cause saturation of the gas. The resulting condensation of water increases the mass of particles, making them easier to separate from the gas. Acid components of the flue gas may be similarly rendered more easily separable. These wetted particles are then separated and removed from the flue gas. The cleaned flue gas is then compressed back up to chimney pressure for discharge.Type: ApplicationFiled: August 3, 2001Publication date: February 13, 2003Inventor: Joseph Carl Firey
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Publication number: 20030010209Abstract: Devices for measuring at least one parameter of a medium flowing in a line, having an inlet conduit an outlet conduit, having the disadvantage in the prior art that liquids flowing into the inlet conduit can reach a measurement element and alter the measurement characteristic curve behavior of the measurement element. A device (1) of the invention has, between the inlet conduit (24) and outlet conduit (44), a deflection conduit (33) with a separation element (70), by which the liquids are separated out and therefore do not reach the measurement element (60).Type: ApplicationFiled: March 8, 2002Publication date: January 16, 2003Inventors: Christian Heinen, Thomas Lenzing, Klaus Reymann, Uwe Konzelmann, Andy Mikleuschewitsch
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Publication number: 20020134244Abstract: A trap for condensable liquids, such as tantalum pentoxide, has a primary trapping chamber surrounding a secondary trapping chamber and a sump connected by a small enough opening to the primary or secondary chamber such that trapped liquid in the sump is effectively isolated from a gas flow through the primary and secondary chambers. Partitions and openings in the primary and secondary chambers enhance condensation while allowing condensed liquid flow that does not clog the primary and secondary chambers against the gas flow.Type: ApplicationFiled: March 23, 2001Publication date: September 26, 2002Applicant: MKS Instruments, Inc.Inventor: Youfan Gu
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Publication number: 20020134245Abstract: A device for determining at least one parameter of a flowing gas-liquid mixture, according to the related art has the disadvantage that it is not protected against liquids moving against the main flow direction.Type: ApplicationFiled: April 3, 2002Publication date: September 26, 2002Inventors: Heinz Rilling, Gerhard Hueftle, Thomas Lenzing, Hans Beyrich, Roland Mueller, Uwe Konzelmann
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Publication number: 20020083834Abstract: A method of removing a liquid entrained in a gas moving at a velocity in an upward direction from a base to a top of a stack comprising the steps of imparting a swirling direction to the velocity of the gas adjacent the base of the stack and then recovering at least some of the liquid adjacent the top of the stack. Also disclosed is an apparatus for removing a liquid entrained in a gas in a stack having a base and a top comprising at least one duct having a longitudinal axis entering the stack adjacent said base and at least one vertical vane disposed at and angled to the longitudinal axis of the duct and a collector adjacent the top of the stack for recovering liquid.Type: ApplicationFiled: September 27, 2001Publication date: July 4, 2002Inventors: Michael W. Durner, Scott J. Kutzley
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Patent number: 6413300Abstract: A roof bolt machine comprising a quartz trapping device adapted to connect with an exhaust stream of a dust system circuit of a roof bolt machine for reducing the amount of respirable dust and respirable quartz that is released into the environment from the exhaust stream. The quartz trapping device comprises, a container partially filled with a liquid, at least one inlet mounted on said container and adapted to connect the container with the dust system circuit of the roof bolt machine for directing the dust exhaust stream inside the container and a plurality of downward extending and upward extending baffles arranged in an alternating configuration.Type: GrantFiled: September 24, 1999Date of Patent: July 2, 2002Inventors: Charles Larry Bane, James Dewayne Kinder
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Patent number: 6402817Abstract: Fluid flow is directed into a multiplicity of slit nozzles positioned so that the fluid flow is directed into a gap between the nozzles and (a) a number of receiving chambers and (b) a number of exhaust chambers. The nozzles and chambers are select so that the fluid flow will be separated into a first particle flow component with larger and a second particle flow component with the smaller particles.Type: GrantFiled: August 25, 2000Date of Patent: June 11, 2002Assignee: The Regents of the University of CaliforniaInventor: Werner Bergman
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Patent number: 6383263Abstract: A process for separation of solid particles of wide grain size distribution present in a turbulent gas stream includes, first, removal of the coarser particles in a separation chamber (1) with a high efficiency, then removal, with a high efficiency, of the remaining finer particles in a precipitation device (20). An assembly intended for separation of solid particles of wide grain size distribution present in a turbulent gas stream includes a separation chamber (1) intended to receive the solid particles in suspension and to remove from the stream the major part of the coarser particles, and a precipitation device (20) intended to separate the finer particles from the stream.Type: GrantFiled: July 5, 2000Date of Patent: May 7, 2002Assignees: Institut Francais du PetroleInventor: Francis A. L. Dullien
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Publication number: 20020026873Abstract: This invention provides an improved method and apparatus for collecting a liquid overspray from a gaseous mist and separating the liquid from the gas stream. The invention has utility in a wide variety of chemical application processes such as to reduce the hazards and waste characterized by prior art methods and provide a mechanism for the in-line recycling of the overspray liquid. In a preferred embodiment, the present invention comprises a hooded recovery unit which is oriented above and about a conveyor system in which a workpiece travels through a spray zone in which a chemical or other liquid is applied to the workpiece. In such a situation, the present invention provides for the recovery of overspray liquid which would otherwise be wasted as the liquid or chemical is applied to the workpiece during the period in which the workpiece passes through the recovery unit. The system includes a spray application chamber, a conditioning chamber, and an overspray collection chamber.Type: ApplicationFiled: August 30, 2001Publication date: March 7, 2002Inventor: Jackie Hearld
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Patent number: 6287367Abstract: This concept concerns a vapor/liquid contacting tray which is useful in distillation and related mass transfer or heat transfer applications where liquid flows down and gas or vapor flows up through a vessel. In this device, the perforated area is relatively small, so the liquid is entrained upward. The liquid flow is then directed downward into a large disengaging area. The downward momentum of the liquid and the large disengaging allow for high liquid and vapor rates without overloading the vapor/liquid disengaging capacity of the device.Type: GrantFiled: December 15, 1999Date of Patent: September 11, 2001Assignee: Mobil Oil CorporationInventors: John Scott Buchanan, Berne Kim Stober
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Patent number: 6284025Abstract: A particle microtrap screen apparatus has an inlet, a jet orifice screen with multiple microjet orifices, and a microtrap plate having multiple microtraps spaced opposite the multiple microjet orifices for entrapping particles entrained by the jets and then released by the gas, and impacting in the microtraps with the energy imparted by the gas as the gas turns and flows between the jet orifice screen and the microtrap impact plate. Collection efficiencies of greater than 90% of particles, about 2 micrometers or larger in size, are experienced with pressure drops of less than 5 millimeters of water. The pressure drop does not increase upon increased loading with particles. The jet orifices have widths of D, about 0.5 millimeters, with spacing between orifices of about 5D and trap width and depth of about 4D and 2D, respectively, with about 2D spacing between the jet orifice screen and the microtrap plate.Type: GrantFiled: October 5, 1999Date of Patent: September 4, 2001Assignee: Aerosol Dynamics, Inc.Inventors: Nathan Kreisberg, Susanne V. Hering
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Patent number: 6264728Abstract: An improved apparatus and method of operation for separating contamination material from an air stream flow of cotton fibers, the apparatus including a primary chamber having continuous walls, the primary chamber positionable within the air stream of cotton fibers and foreign matter. The chamber may be cylindrical with the continuous walls having a plurality of holes forming porous sides extending the length of the cylindrical chamber. A secondary enclosure is utilized, the secondary enclosure is located adjacent to the primary chamber and below the porous side walls, the secondary enclosure receives foreign matter separated from the air stream of cotton fibers. The air stream flow and cotton fibers are directed through the primary chamber, with foreign matter displaced through the pores formed in the walls of the primary chamber.Type: GrantFiled: November 12, 1999Date of Patent: July 24, 2001Inventor: Todd R. Purvis
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Patent number: 6258153Abstract: The device enables the deposition of substances from a gas phase. The device has a deposition chamber with at least one inner wall that is maintained at a deposition temperature for the deposition of the substances. A delivery end of a feed line extends to or into the deposition chamber. The substances to be deposited in the deposition chamber are delivered in gas form via the feed line. The feed has a transport temperature above the deposition temperature. This transport temperature is selected such that premature deposition of the substances inside the feed is prevented. A thermal insulation is formed between the feed and the inner wall of the deposition chamber. Any cooling of the feed toward its delivery end down to the deposition temperature is thereby prevented.Type: GrantFiled: June 18, 1999Date of Patent: July 10, 2001Assignee: Siemens AktiengesellschaftInventor: Frank Hintermaier
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Patent number: 6083302Abstract: Sulfur oxides (SO.sub.x) are scrubbed from combustion effluents with greater system reliability when an improved mist eliminator of the invention is employed. The mist eliminator has at least one section, preferably two sections, with two passes followed by an extended trailing edge. This design is shown in tests to be as effective as four pass designs, while being easier to clean. Encrustation and plugging are greatly reduced.Type: GrantFiled: August 13, 1998Date of Patent: July 4, 2000Assignee: ABB Environmental Systems, division of ABB Flakt, Inc.Inventors: Wesley P. Bauver, II, David K. Anderson, William H. Kingston
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Patent number: 6080225Abstract: A method of separating liquid drops from a gas stream includes the step of introducing the gas stream having a temperature greater than 600.degree. C. into shaped elements having very narrow channels through which the gas stream flows, wherein the shaped elements are of a material that becomes conductive at high temperatures and further includes the step of selecting the width of the narrow channels based on the gas stream velocity such that turbulence is generated along the flow path causing the liquid drops to strike the channel walls and deposit thereon. The apparatus for separating liquid drops from a gas stream includes a plurality of shaped elements having very narrow channels through which the gas stream having a temperature greater than 600.degree. C.Type: GrantFiled: April 18, 1997Date of Patent: June 27, 2000Inventor: Malte E. C. Forster