Filtering Patents (Class 95/273)
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Patent number: 8298322Abstract: The present invention provides a system and method for transmitting information between a device within a housing to a second device, preferably a test or monitoring unit, outside of the housing. There are numerous issues associated with transferring information from within a sealed housing to an external device. In some cases, the use of wires inside the housing may be impractical, due to internal conditions, such as fluid flow, pressure or temperature. In one embodiment, the antenna of the external RF reading device is electrically connected to the dome of the housing. In another embodiment, the device within the housing is electrically connected to a housing component. In another embodiment, the gasket is used to pass information from within the housing to an external device.Type: GrantFiled: April 30, 2012Date of Patent: October 30, 2012Assignee: EMD Millipore CorporationInventors: Michael T. Grzonka, Michael Joens, Aaron Burke
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Patent number: 8273158Abstract: A mist eliminator including a substrate and a plurality of frusto-conical shaped protrusions disposed on the substrate is provided. The plurality of frusto-conical shaped protrusions have a geometry and are positioned at intervals that provide coalescence and retention of water particles from moisture containing air contacting the substrate and frusto-conical shaped protrusions. A moisture removal system and a method for removing water particles from inlet air with the mist eliminator are also disclosed.Type: GrantFiled: November 29, 2010Date of Patent: September 25, 2012Assignee: General Electric CompanyInventors: Etienne Rene Jarrier, John Davies, Paul Bryant
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Patent number: 8268031Abstract: The present disclosure relates to a fabric filter system, which may be used for removing particulate matter from a gas, such as a combustion process gas. The filter system includes a fabric filter (3) which is placed in a filter compartment. From the filter, gas flows via a filter plenary space (5) to an outlet duct (7), where the gas exits. A flow control device controls the amount of air exiting through the outlet duct. The flow control device comprises a louver-type damper (17). This provides reliable and efficient control of the gas flow. A collar (21), connecting the plenary space (5) with the outlet duct (7), improves the gas flow into the duct.Type: GrantFiled: September 2, 2009Date of Patent: September 18, 2012Assignee: ALSTOM Technology LtdInventors: Rune Sten Andersson, Anders Erik Martin Hjelmberg
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Patent number: 8268054Abstract: An apparatus and a system is provided that may be utilized to provide stability to air flow through a hood scoop. The present invention may also be utilized to straighten and smooth out air flow through a hood scoop and accompanying air filter media. The present invention utilizes an air filtration media which may be inserted into at least a portion of a vehicle hood scoop and may filter out particulate and may also slow air flow down temporarily in order to straighten and/or smooth turbulent air flow through the air filtration media. Additionally, the present invention may provide an apparatus that may facilitate more uniform pressure inside the hood scoop of the vehicle.Type: GrantFiled: August 3, 2011Date of Patent: September 18, 2012Assignee: K&N Engineering, Inc.Inventors: Jonathan Richard Fiello, Steve Williams
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Patent number: 8268053Abstract: Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.Type: GrantFiled: February 11, 2008Date of Patent: September 18, 2012Assignee: Donaldson Company, Inc.Inventors: Wayne M. Wagner, Gary R. Gillingham, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Fred H. Wahlquist, Bernard A. Matthys, Gregory L. Reichter, Stephen W. Sabelko, Bryan D. Patten
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Publication number: 20120227580Abstract: An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.Type: ApplicationFiled: March 8, 2011Publication date: September 13, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Aed Mohammad Dudar, Robert Roy Jentz, Mark W. Peters
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Publication number: 20120227586Abstract: A method and an apparatus are provided for deodorizing and disinfecting air and droplets from urinal, toilet bowl, and other receivers and holders of urine and fecal matter. The apparatus comprises a housing (1) having an air inlet (2) and air outlet (3), wherein the housing (1) encloses a droplet removal chamber (4) for removing droplets from airflow; a deodorization and disinfection chamber (5) for removing air contaminants in the airflow; and an delivery unit (6) for airflow generation. Being actively drawn into the apparatus, air contaminants such as odor, bacteria and virus are removed without discharge of contaminated air and causing secondary pollution. The apparatus and method provide odorless and comfortable environment and avoid disease transmission in both public and domestic toilets.Type: ApplicationFiled: September 11, 2009Publication date: September 13, 2012Applicant: WIN UNION DEVELOPMENT LIMITEDInventors: Chi Keung Rudy Chan, Yee Lam Chan, Lam Lung Yeung, Ka Tung Ho
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Patent number: 8262780Abstract: A composite filter media structure and an associated method of making are provided. The structure includes a base substrate that includes a nonwoven fabric substrate formed from a plurality of bicomponent synthetic fibers using a spunbond process. The composite filter media structure includes a surface layer deposited on one side of the base substrate where a thermal lamination process can be used to combine the base substrate and the surface layer. The surface layer is formed from a microporous expanded polytetrafluoroethylene membrane. In one aspect, the base substrate and the surface layer are configured to provide greater than 95% and equal to or less than 99.5% filtration efficiency measured in accordance with an EN 1822 test method. In another aspect, the filter media includes an embossing pattern or a plurality of corrugations formed using opposing rollers at a temperature of about 90° C. to about 140° C.Type: GrantFiled: July 22, 2009Date of Patent: September 11, 2012Assignee: BHA Group, IncInventors: Alan Smithies, Jack T. Clements, Cynthia Polizzi
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Patent number: 8246909Abstract: A method measures a property of a germicidal solution in an endoscope processor spectroscopically by placing a quantity of the solution into a cuvette and passing a light therethrough. A reservoir receives a quantity of the solution and bubbles are filtered out via a cross-flow filter prior to putting a sample therefrom into the cuvette for measuring.Type: GrantFiled: September 14, 2007Date of Patent: August 21, 2012Assignee: Ethicon, Inc.Inventors: Hal Williams, Yan Fang, Richard Jackson
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Patent number: 8246724Abstract: In a method for air treatment in a display cabinet for the storage and/or display of objects, whose walls, floor and roof structure more or less enclose the inside space of the display cabinet and in which a forced inflow of air from an air delivery system connected to the inside space (1) of the cabinet maintains a slight excess pressure compared with the air outside it, the said airflow passes through suitable dust or gas filtration means before entering the cabinet and its air humidity is adjusted and/or controlled by means of a cooling device. After filtration, the airflow passes through a catalyser (8) present in a liquid (7), the air picks up moisture from the liquid and is rendered completely free from germs. In this manner and in a simple way, a completely germ-free atmosphere is produced inside the display cabinet. A display cabinet for implementing the method has a corresponding structure.Type: GrantFiled: November 19, 2009Date of Patent: August 21, 2012Assignee: Glasbau Hahn GmbHInventor: Norbert Leonhardt
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Publication number: 20120199002Abstract: The present invention discloses a filter having multiple layers including an odor suppressing layer for use with a plurality of different types of air flow inducing devices. One filter layer acts as a standard air filter to filter contaminants out of an air flow. Another filter layer serves as an odor suppressing layer to reduce odors in the air flow. An optional additional layer adds structural integrity to the filter while also supplying additional filtration of particulate.Type: ApplicationFiled: February 3, 2011Publication date: August 9, 2012Applicant: Home Health Medical Equipment Inc., d/b/a AG IndustriesInventor: Michael A. Amann
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Publication number: 20120199003Abstract: Disclosed is an air distribution control unit or a filtration/ventilation unit which is portable and/or can be mounted on or integrated in furniture e.g. as a cabinet of at the head region of a bed. The filtration/ventilation unit cleanses air from a person/patient by aspirating the person's/patient's exhalation air into the filtration/ventilation unit. To construct an at least partly isolated area around the patient, filtered air can be directed e.g. vertically out of the filtration/ventilation unit to perform an air curtain. Use of the filtration/ventilation unit reduces the risk of dissipation of air-borne diseases and health hazardous matter, and reduces the amount of air to ventilate a room with patients.Type: ApplicationFiled: July 14, 2010Publication date: August 9, 2012Applicant: TECHNICAL UNIVERSITY OF DENMARKInventors: Arsen Krikor Melikov, Shengwei Zhu, Zhecho Dimitrov Bolashikov
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Patent number: 8236093Abstract: A method of reducing the concentration of pollutants in a combustion flue gas having a first temperature is provided. The method includes the step of providing an organic Rankine cycle apparatus utilizing a working fluid and including at least one heat exchanger is arranged in thermal communication with the flue gas. The method further includes the step of reducing the temperature of the flue gas to a second temperature less than the first temperature by vaporizing the working fluid within the heat exchanger utilizing thermal energy derived from the flue gas. The method further includes the step of filtering the flue gas through at least one filter disposed downstream of the heat exchanger to remove pollutants from the flue gas. An associated system configured to reduce the concentration of pollutants in the combustion flue gas is also provided.Type: GrantFiled: September 16, 2009Date of Patent: August 7, 2012Assignee: BHA Group, Inc.Inventors: Robert Warren Taylor, James Easel Roberts, Charles Michael Booth
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Patent number: 8234909Abstract: Methods are disclosed for inspecting a cylindrical porous ceramic body by positioning a diffuser near, and spaced apart from, the first end of a ceramic body; flowing a tracer flow toward the diffuser, wherein a first portion of the tracer flow passes through the diffuser, and a second portion of the tracer flow does not pass through the diffuser, the first and second portions of the tracer flow then entering the first end of the ceramic body, wherein the average velocity of the first portion of the tracer flow entering the ceramic body VAVG1 is lower than the average velocity of the second portion of the tracer flow entering the ceramic body VAVG2; directing light toward the second end of the ceramic body; and detecting reflected light coming from a location proximate the second transverse face at the second end of the ceramic body.Type: GrantFiled: August 26, 2009Date of Patent: August 7, 2012Assignee: Corning IncorporatedInventors: Balram Suman, Srinivasa Rao Vaddiraju, Wei Xu
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Patent number: 8231701Abstract: A particulate filter may comprise an inlet end, an outlet end, and a plurality of channels disposed and configured to flow fluid from the inlet end to the outlet end, wherein the channels are defined by porous walls configured to trap particulate matter. The porous walls may have a cell density less than about 200 cpsi, a wall thickness of less than about 14 mils, a median pore size that ranges from about 13 micrometers to about 20 micrometers, a total porosity greater than about 45%, and a pore size distribution such that pores less than 10 micrometers contribute less than about 10% porosity.Type: GrantFiled: January 21, 2009Date of Patent: July 31, 2012Assignee: Corning IncorporatedInventors: Douglas Munroe Beall, Achim Karl-Erich Heibel, Pushkar Tandon
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Publication number: 20120180664Abstract: A gas filter assembly includes a housing and a gas filter positioned in the housing. The gas filter includes a pleated filter pack, a spacer arrangement which includes solidified bonding material between adjacent pleat legs on the upstream surface of the filter pack, and insert spacers between adjacent pleat legs on the downstream surface of the filter pack.Type: ApplicationFiled: January 14, 2011Publication date: July 19, 2012Applicant: PALL CORPORATIONInventor: Joseph E. Lundquist
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Publication number: 20120174786Abstract: The present invention comprises a filter system for a computing device including a frame. In one embodiment, end members on the frame are biased toward each other so that, when the frame is mounted on a cabinet of the computing device, the opposing end members tightly fit around a portion of the cabinet, the filter fitting within the frame. In one embodiment, a majority of the filter is visible to the user, largely unobstructed by the frame. As a result, the status of the filter may be evident to the user, thereby facilitating its cleaning or replacement. In some embodiments, the user may clean the filter in place, and in some embodiments, the user may easily remove the frame with its opposing end members from the computer cabinet thereby permitting the filter to be easily cleaned or replaced.Type: ApplicationFiled: January 11, 2011Publication date: July 12, 2012Inventor: Josh Sahley
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Publication number: 20120174785Abstract: A method and apparatus for processing air is described herein. An example apparatus includes a housing, a high-velocity air flow guide, a filter assembly, and a fan. The high-velocity air flow guide includes a first portion and a second portion. The first portion is configured to form a passage within the housing, and the second portion is configured to divert and accelerate air flow of the ambient air from the passage to a chamber of the housing. The filter assembly includes one or more filtering elements configured to receive the ambient air from the chamber. The fan is configured to draw the ambient air from the chamber through the filter assembly and to generate processed air from the ambient air.Type: ApplicationFiled: February 27, 2012Publication date: July 12, 2012Inventors: D. Scott Kalous, Charles Harris
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Publication number: 20120174603Abstract: An apparatus for water reclamation includes an inlet head for admitting warm humid ambient air, a buried pipe coupled at a first end to the inlet head and sloping downward in the ground from the first end. Water condenses as the air is cooled in the buried pipe and collects in a cistern coupled at a second end of the buried pipe. A tube coupled at a lower end near the second end of the buried pipe includes a heated element extending at least partially into the tube from an upper end of the tube. Cooled air is heated by the heated element and is expelled at the top of the tube. A heater is coupled to an upper end of the heated element. The heater may be a solar collector with a Bernoulli aperture.Type: ApplicationFiled: January 7, 2011Publication date: July 12, 2012Inventor: Javier Fernandez-Han
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Patent number: 8216335Abstract: The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.Type: GrantFiled: August 24, 2005Date of Patent: July 10, 2012Assignee: Donaldson Company, Inc.Inventors: James R. Scott, Steven S. Gieseke, Douglas Lee Iddings
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Patent number: 8211196Abstract: A feed gas conditioner includes a pressure vessel that encloses at least part of a pre-heater. The pre-heater has an inlet for connection to a source of feed gas and an outlet for delivering the feed gas into the interior of the pressure vessel. An electrical heater element located within the pre-heater increases the temperature of the feed gas as it flows through the pre-heater. An expansion valve reduces the pressure of the feed gas as it flows from the pre-heater so as to initiate condensation. A super heater is at least partially located within the pressure vessel and has an inlet within the interior of the pressure vessel. A filter is in a flow path in the pressure vessel leading from the pre-heater heater to the super heater for removing condensate from the feed gas. An electrical heater element is in the super heater for heating the feed gas.Type: GrantFiled: February 15, 2011Date of Patent: July 3, 2012Assignee: Gaumer Company, Inc.Inventors: Jack L. McClanahan, Craig S. Tiras
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Patent number: 8211208Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.Type: GrantFiled: September 26, 2011Date of Patent: July 3, 2012Assignee: Akos Advanced Technology Ltd.Inventors: Yiu Wai Chan, Sui Chun Law
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Patent number: 8211215Abstract: An instrument gas conditioning system is provided. The system includes filtering, and optionally drying, a gas stream to obtain a filtered, and optionally dried, gas stream. The filtered, and optionally dried, gas stream is heated in a heater and then regulated through a regulator. The filtered, heated, regulated, and, optionally dried, gas stream may be used as instrumentation gas.Type: GrantFiled: July 6, 2009Date of Patent: July 3, 2012Assignee: RMS Controls, Inc.Inventors: Jeff Schott, Eric Almaraz
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Publication number: 20120160104Abstract: The present disclosure generally relates to filter media including glass fibers. The fiber characteristics (e.g., composition, dimensions) are selected to impart the desired solubility, filtration and mechanical properties so that the filter media may be used in the desired application.Type: ApplicationFiled: December 22, 2010Publication date: June 28, 2012Applicant: Hollingsworth & Vose CompanyInventor: Yuri Vulfson
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Patent number: 8206482Abstract: Vacuum cleaner filters, in particular replaceable vacuum cleaner filters suitable for both dry and wet/dry type vacuum cleaners are disclosed, as well as systems incorporating the use of such filters and methods for their use. The filters include a plurality of adjacently positioned pleats arranged in a closed circumferential, cylindrically-shaped path, a top end cap having a central orifice capable of constricting a post on a vacuum filter cage, and optionally a molded end ring oppositely-spaced from the top end cap for engagement with the motor housing of a vacuum cleaner.Type: GrantFiled: October 1, 2008Date of Patent: June 26, 2012Assignee: Emerson Electric Co.Inventors: Matthew A. Williams, Terrence L. Stanek, Jeffrey L. Young
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Patent number: 8197570Abstract: Embodiments for a filter and method for fabricating the same are provide herein. In one embodiment, a filter is provided that includes a first end cap, a second end cap, at least a first filtration media element and at least a first brace. The first end cap has an air flow aperture formed therethrough. The first and second end caps define a central axis. The first filtration media element is coupled to the first and second end caps and has an orientation curved around the central axis. The brace separates a first closed edge of the filtration media element from a second closed edge of the filtration media element.Type: GrantFiled: March 24, 2009Date of Patent: June 12, 2012Assignee: Camfil Farr, Inc.Inventor: Lee Pendleton Morgan
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Patent number: 8192709Abstract: The present invention relates to the selective separation of methane (“CH4”) from higher carbon number hydrocarbons (“HHC”s) in streams containing both methane and higher carbon number hydrocarbons (e.g. ethylene, ethane, propylene, propane, etc.) utilizing a zeolitic imidazolate framework (“ZIF”) material. Preferably, the stream to be separated is fed to the present process in a substantially gaseous phase. In preferred embodiments, the current invention is utilized in a process to separate methane from higher carbon number hydrocarbons in natural gas streams.Type: GrantFiled: January 30, 2009Date of Patent: June 5, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Sebastian C. Reyes, Jose G. Santiesteban, legal representative, Zheng Ni, Charanjit S. Paur, Pavel Kortunov, John Zengel, Harry W. Deckman
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Publication number: 20120132076Abstract: A filter element, a particle filter, a method for marking a filter element, a method for producing a particle filter and the use of a filter element are described. With such methods and filter elements, individual filter elements can be securely adhered in a simple manner to form a filter. An identification means is applied to the end surfaces of each filter element for producing a particle filter, thus enabling the defined orientation of the filter elements for the adhesive process and preventing erroneous adhesion.Type: ApplicationFiled: July 19, 2010Publication date: May 31, 2012Inventors: Michael Faber, Daniel Eckhardt
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Patent number: 8187354Abstract: A composite fabric formed by depositing a web of nanofibers electroblown from a first polymer onto a first support web comprising fibers of larger average diameter than the nanofibers spun from a compatible material, in the absence of an adhesive between the webs, and solvent-bonding the webs together.Type: GrantFiled: November 7, 2011Date of Patent: May 29, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Hyun Sung Lim, Hageun Suh, B. Lynne Wiseman
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Publication number: 20120129032Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.Type: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: CARL FREUDENBERG KGInventors: Armin GREINER, Klaus VEESER, Holger SCHILLING, Günter FREY, Ralph BERKEMANN
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Patent number: 8182800Abstract: This invention relates to high surface area materials, such as nanoparticles, that are coated with metal ions. These modified nanoparticles have active sites that bind various gases and/or odorous compounds, thereby removing these compounds from a medium such as air or water. Metal ions are adsorbed onto the surface of the nanoparticle and bound strongly to the surface. By selection of the metal ion, specific gaseous compounds and/or odorous compounds can be targeted and removed efficiently and effectively from both aqueous phase and from the air. The modified nanoparticles are useful in numerous article of manufacture for industrial and consumer use.Type: GrantFiled: August 25, 2009Date of Patent: May 22, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventor: John Gavin MacDonald
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Patent number: 8182588Abstract: A kitchen exhaust system includes a dispenser and a receiver, with a supply spool of grease absorbent material provided in the dispenser. In a process to replace the contaminated material, portions of the web can be selectively removed from the air flow path into the receiver while drawing uncontaminated portions of the web from the dispenser to the path of air flow.Type: GrantFiled: August 9, 2010Date of Patent: May 22, 2012Assignee: Illinois Tool Works Inc.Inventor: Philip O. Morton
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Patent number: 8177887Abstract: In one embodiment, an aerosol particle collector includes a duct defining a flow path configured to remove larger particles from aerosol flowing through the duct and to store the removed particles in the duct while maintaining a uniform rate of aerosol flow throughout a predetermined useful life of the duct even as stored aerosol particles accumulate in the duct. In another embodiment, an aerosol particle collector includes a duct and a plurality of baffles in the duct. The duct has an elongated inlet extending along a length of the duct and an outlet located at one end of the length of the duct. A first one of the baffles extends along a first side of the duct for deflecting incoming aerosol toward a second side of the duct opposite the first side. A second one of the baffles is for deflecting aerosol toward the outlet.Type: GrantFiled: February 27, 2010Date of Patent: May 15, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Geoffrey Schmid, Kira N. Ellsaesser, Henric Larsson
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Patent number: 8177888Abstract: A feed gas conditioner.Type: GrantFiled: September 3, 2009Date of Patent: May 15, 2012Assignee: Gaumer Company Inc.Inventors: Jack L. McClanahan, Craig S. Tiras
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Publication number: 20120111197Abstract: A filter assembly includes a main body configured to attach to an air duct and having an opening defining an air flow area dimensioned to match dimensions of the air duct. A track is disposed outside of the air flow area; and a filter is disposed in the track. A method of filtering air with a filter including a filter medium and a filter frame surrounding the filter medium includes installing the filter along a duct which defines an air flow area so that the filter frame is disposed entirely outside of the air flow area; and moving air through the duct along the air flow area and through the filter medium.Type: ApplicationFiled: November 10, 2010Publication date: May 10, 2012Applicant: ENERGY MANAGEMENT PRODUCTS, LLCInventor: Gary WEISMAN
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Patent number: 8172923Abstract: An apparatus and method for maintaining low gas velocity variation across a diffuser membrane during the vent-up of a vacuum chamber is disclosed. The diffuser membrane permeability and the pressure conditions across the membrane are chosen to minimize variation in gas flow velocity through the membrane during the vent-up cycle. This reduces re-distribution of particles from a vacuum chamber onto sensitive substrates in the vacuum chamber during vent-up from sub-atmospheric pressure to atmospheric pressure.Type: GrantFiled: January 21, 2009Date of Patent: May 8, 2012Assignee: Entegris, Inc.Inventors: Christopher Vroman, Marshall Randolph
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Patent number: 8174689Abstract: According to an apparatus for inspecting defects of a honeycomb structure that is provided with a current plate and an air current formation means (air source and a header tube), fine defects or defects taking place in the vicinity of an outer periphery of the honeycomb structure can be detected with high sensitivity.Type: GrantFiled: March 13, 2009Date of Patent: May 8, 2012Assignee: NGK Insulators, Ltd.Inventors: Takayoshi Akao, Hiroyuki Shindo, Jun Inoue, Keita Oikawa
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Publication number: 20120097032Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.Type: ApplicationFiled: December 29, 2011Publication date: April 26, 2012Applicant: Hollingsworth & Vose CompanyInventors: James M. Witsch, Douglas M. Guimond
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Patent number: 8163054Abstract: An air filter having hollow support channels in its frame is disclosed. In one embodiment, the air filter comprises a support structure having a center portion and sidewalls positioned on opposite sides of the center portion, the center portion of the support structure attached to a side of a filter media, and a frame having a plurality of sections, each of the sections having a center portion and sidewalls positioned on opposite sides of the center portion, a first frame section attached to the support structure by connecting the sidewalls of first frame section to the sidewalls of the support structure to form a hollow channel between the first support structure center portion, the frame section center portion, and the sidewalls. Methods for cutting air filter sections and for attaching a frame to the air filter sections is also disclosed.Type: GrantFiled: January 23, 2009Date of Patent: April 24, 2012Assignee: Glasfloss Industries, LPInventors: Todd McGrath, Kenneth S. Lange, Richard Lyons, Marty Lamp
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Patent number: 8157896Abstract: An airnet constructed of a filtering fabric sewn in the shape of a windsock is connected to the discharge end of a fan. Actuation of the fan causes ambient air to flow through the fan and into the airnet. The air passes through the filtering fabric of the airnet and particulate matter in the ambient air is trapped and retained within the airnet. The airnet and fan combined form a portable air filtration system capable of filtering the ambient air in confined spaces, such as bathrooms being finished or remodeled, in a relatively quick and efficient manner.Type: GrantFiled: December 4, 2007Date of Patent: April 17, 2012Assignee: Demo Air Net, LLCInventor: Patrick Sheehan
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Patent number: 8157890Abstract: An improved filter assembly (1) is disclosed, particularly for electric cabinets, comprising a filter cloth (5), a conveying sump (7) and a fan (9), equipped with at least one thermal-resistive sensor (11) placed next to at least one hole (13) obtained in the conveying sump (7).Type: GrantFiled: February 22, 2006Date of Patent: April 17, 2012Assignee: Gianus S.p.A.Inventor: Roberto Brioschi
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Patent number: 8157879Abstract: A vacuum cleaner filter bag with an inlet opening and a deflection device arranged in the area of the inlet opening, which is configured in such a way that an air stream flowing through the inlet opening can be deflected.Type: GrantFiled: November 22, 2006Date of Patent: April 17, 2012Assignee: Eurofilters Holding N.V.Inventors: Ralf Sauer, Jan Schultink
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Patent number: 8152897Abstract: A gas liquid separator system for a hydrogen generating apparatus includes a collection area for collecting liquid from the generated gases. To empty the collection area occasionally so that liquid does not build up and become entrained again in the dried gas, a vent solenoid is provided in communication with the collection area and a pump is used to create a vacuum periodically on the electrolysis cells. Such arrangement is used to open the liquid gas filter and possibly just the sump to atmosphere occasionally and vacuum generated to draw the liquid from the sump back to the electrolysis cells.Type: GrantFiled: January 30, 2007Date of Patent: April 10, 2012Assignee: Blutip Power Technologies Ltd.Inventor: Andrew Harland Lindsay
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Publication number: 20120079940Abstract: A porous membrane, comprising a blend of a first powder of metal particles of the first average size and a second powder of metal particles of a second average size, the first powder and the second powder sintered together. The first average size is five to fifty times greater than the second average size. The porous membrane comprises from 40% to 60% by weight of the first powder.Type: ApplicationFiled: June 16, 2010Publication date: April 5, 2012Inventor: Robert S. Zeller
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Patent number: 8142551Abstract: A filtration apparatus comprises a casing defining an inner cavity with an upper cylindrical portion and a lower hopper portion. An inlet feeds gas and solids into the inner cavity and causes movement of the solids in a downward spiral path in the casing. A solids outlet at a bottom of the lower hopper portion outlets the solids from the casing. A gas outlet exhausts gases from the casing. An annular arrangement of ports in a wall of the lower hopper portion of the casing injects an other gas in the inner cavity. The ports are oriented to guide the other gas into following a partially vertical path into the inner cavity to disrupt the movement of the solids in the downward spiral path to allow a capture of the solid particles by the capturing solids. A gas source is connected to the arrangement of ports.Type: GrantFiled: March 31, 2010Date of Patent: March 27, 2012Inventor: Guy Prud'homme
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Patent number: 8141716Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.Type: GrantFiled: February 10, 2011Date of Patent: March 27, 2012Assignee: Donaldson Company, Inc.Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci
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Patent number: 8137434Abstract: A first intake air control mode of setting an intake throttle valve to (or close to) a fully-opened state and setting an EGR valve to (or close to) a fully-closed state is performed when DPF temperature and a particulate matter deposition quantity are greater than corresponding predetermined values respectively, a no-injection operation state exists, and engine rotation speed is higher than a corresponding predetermined value. A second intake air control mode of setting the intake throttle valve to (or close to) a fully-closed state and setting the EGR valve to (or close to) a fully-opened state is performed when the DPF temperature and the particulate matter deposition quantity are greater than the corresponding predetermined values respectively, the no-injection operation state exists, and the engine rotation speed is lower than the corresponding predetermined value.Type: GrantFiled: December 30, 2008Date of Patent: March 20, 2012Assignee: Denso CorporationInventors: Shigeto Yahata, Tsutomu Soga, Tsukasa Kuboshima
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Patent number: 8128720Abstract: A reflow apparatus for solder joining electronic components to a substrate includes a reflow chamber, a conveyor to convey a substrate within the chamber, at least one heating element to provide heat to reflow solder on the substrate, and at least one system to remove contaminants generated from the reflow solder. The system is coupled with the chamber for passage of a vapor stream from the chamber through the system. The system comprises a contaminant collection unit in fluid communication with the vapor stream. The contaminant collection unit includes a coil and a collection container. The coil is configured to receive cooled gas therein. The arrangement is such that when introducing cooled gas in the coil, contaminants in the vapor stream condense on the coil, and when ceasing the introduction of cooled gas in the coil, contaminants in the vapor stream are released from the coil and collected in the collection container. Other embodiments and methods for removing contaminants are further disclosed.Type: GrantFiled: July 18, 2011Date of Patent: March 6, 2012Assignee: Illinois Tool Works Inc.Inventors: John Neiderman, Rita Mohanty, Marc C. Apell, Azhar Qureshi, Giovanni Filippelli
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Patent number: 8128738Abstract: In a method of drying an object, a first drying fluid and a second dry fluid may be first heated to form a gas mixture. The gas mixture may be second heated to prevent the mixed gas from condensing. The second heated gas mixture may be filtered to remove impurities from the second heated mixed gas. The filtered mixed gas may be then applied to the object so as to dry the object.Type: GrantFiled: July 13, 2007Date of Patent: March 6, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Kuen-Byul Kim, In-Gi Kim, Dae-Bum Park, Soung-Kil Ryu, Seung-Bu Baek, Seo-Hyun Kim
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Patent number: 8128729Abstract: A method of providing error correction to flow velocity readings of a fluid flowing through a filter arrangement for monitoring the service life of the filter, wherein a filter arrangement, comprising a filter and a sensor device is arranged downstream of the filter, the sensor device including at least one measuring sensor for detecting the flow velocity of the fluid which flows through the filter, and a further measuring sensor for measuring the air humidity of the fluid which flows through the filter. A reading of said second sensor element provides an error correction to the first sensor element.Type: GrantFiled: March 22, 2011Date of Patent: March 6, 2012Assignee: Carl Freudenberg KGInventors: Juergen Guenther, Thomas Stoesser, Heinz Reinhardt, Christopher Klatt