Coated Or Chemically Treated Filter Patents (Class 95/285)
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Patent number: 12036503Abstract: A filter element for filtering a fluid has a frame and a filter bellows provided with a filter medium folded in a zigzag shape to folds. The filter bellows has an inflow face at a raw side of the filter bellows and an outflow face at a clean side of the filter bellows. The filter bellows is arranged in the frame. A seal is arranged circumferentially at least partially continuously at least in sections at an outer circumferential side of the filter medium at the inflow face of the filter bellows or at the outflow face of the filter bellows. Elongate adhesive sections are arranged along at least two adhesive tracks on the filter medium at the inflow face of the filter bellows and/or at the outflow face of the filter bellows. Strain-relief devices for compensating a length change of the at least two adhesive tracks in relation to the filter medium and/or to the seal are provided. A filter system is provided with such a filter element.Type: GrantFiled: December 3, 2021Date of Patent: July 16, 2024Assignee: MANN+HUMMEL GmbHInventors: Michael Kaufmann, Klaus-Dieter Ruhland, Markus Wagner, Philipp Hettkamp
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Patent number: 11358013Abstract: A filter configured for capturing and killing pathogens, the filter including a first breathable layer including copper; and a second breathable layer including silver, the second breathable layer coupled to the first breathable layer, wherein the first breathable layer and the second breathable layer cooperate to capture and kill pathogens mobilized through at least one of the first breathable layer and the second breathable layer.Type: GrantFiled: April 15, 2021Date of Patent: June 14, 2022Assignee: KJR Materials Technology Consulting LLCInventors: Kenneth J. Reed, Shirley Reed
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Patent number: 11219852Abstract: An apparatus for use in harvesting airborne moisture includes an unmanned aerial vehicle (UAV), a woven mesh, supported by the UAV, for collecting liquid droplets upon contact with a fog bank, a camera, a processor, a non-transitory, tangible computer readable memory storing software instructions executable by the processor, a fog identification engine, and a flight controller on board the UAV. The fog identification engine is executable on the processor according to the software instructions and is configurable to capture a digital image via the camera, detect an absence of features in the digital image, and identify a fog bank as a function of the absence of features in the digital image. The flight controller directs the UAV to enter a fog bank identified by the fog identification engine.Type: GrantFiled: August 28, 2019Date of Patent: January 11, 2022Assignee: NANT HOLDINGS IP, LLCInventor: Nicholas J. Witchey
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Patent number: 11185842Abstract: A method for manufacturing a carbon dioxide adsorbent includes preparing an amine aqueous solution having an amine compound concentration ranging from 5% to 70% inclusive and a temperature ranging from 10° C. to 100° C. inclusive, impregnating silica gel with the amine aqueous solution, and aeration-drying the silica gel carrying the amine compound. The silica gel has a particle size ranging from 1 mm to 5 mm inclusive, an average pore diameter ranging from 10 nm to 100 nm inclusive, and a pore volume ranging from 0.1 cm3/g to 1.3 cm3/g inclusive.Type: GrantFiled: March 14, 2017Date of Patent: November 30, 2021Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takeshi Okumura, Masahiro Negami, Katsuhiro Yoshizawa, Akihito Kawano, Yoshimichi Nomura, Hidekazu Iwasaki, Shohei Nishibe
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Patent number: 10866166Abstract: The present invention provides an improved sorbent and corresponding device(s) and uses thereof for the capture and stabilization of volatile organic compounds (VOC) or semi-volatile organic compounds (SVOC) from a gaseous atmosphere. The sorbent is capable of rapid and high uptake of one or more compounds and provides quantitative release (recovery) of the compound(s) when exposed to elevated temperature and/or organic solvent. Uses of particular improved grades of mesoporous silica are disclosed.Type: GrantFiled: July 25, 2018Date of Patent: December 15, 2020Assignee: XPLOSAFE, LLCInventors: Shoaib F. Shaikh, Allen W. Apblett, Nicholas F. Materer
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Patent number: 10434451Abstract: An apparatus for use in harvesting airborne moisture includes an unmanned aerial vehicle (UAV), a woven mesh, supported by the UAV, for collecting liquid droplets upon contact with a fog bank, a camera, a processor, a non-transitory, tangible computer readable memory storing software instructions executable by the processor, a fog identification engine, and a flight controller on board the UAV. The fog identification engine is executable on the processor according to the software instructions and is configurable to capture a digital image via the camera, detect an absence of features in the digital image, and identify a fog bank as a function of the absence of features in the digital image. The flight controller directs the UAV to enter a fog bank identified by the fog identification engine.Type: GrantFiled: July 26, 2017Date of Patent: October 8, 2019Assignee: NANT HOLDINGS IP, LLCInventor: Nicholas J. Witchey
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Patent number: 10376607Abstract: The present disclosure provides compositions comprising at least one eugenol-containing odor neutralizing agent and at least one film forming agent for treating, reducing or neutralizing malodors.Type: GrantFiled: December 7, 2015Date of Patent: August 13, 2019Assignee: Sadovsky Ltd.Inventors: Shmuel Sadovsky, Uri Bach
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Patent number: 10112174Abstract: The present invention provides (i) a method and system for stabilizing the performance of amine-containing CO2 adsorbents using wet feed gas and/or wet purge gas and (ii) a method for regeneration of deactivated amine-containing CO2 adsorbents via hydrolysis of the urea groups formed during deactivation.Type: GrantFiled: March 14, 2016Date of Patent: October 30, 2018Inventor: Abdelhamid Sayari
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Patent number: 9975081Abstract: The invention relates to methods for purifying gas, and in particular, to such methods using liquid marbles. The liquid in the liquid marbles is comprised of a material or mixture of materials that selectively removes unwanted gaseous component in the gas to be purified.Type: GrantFiled: May 23, 2014Date of Patent: May 22, 2018Assignee: Agency for Science, Technology and ResearchInventors: Jia Min Chin, Siok Wei Tay, Jian Wei Xu, Angeline Yan Xuan Tan
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Patent number: 9950307Abstract: Embodiments of the present disclosure provide for composites, methods of making composites, methods of removing a metal from a fluid, and the like.Type: GrantFiled: August 19, 2014Date of Patent: April 24, 2018Assignees: UNIVERSITY OF SOUTH FLORIDA, KING ABDULAZIZ UNIVERSITYInventors: John Norbert Kuhn, Henry Lee Woodcock, Mohamed A. Barakat, Mansour A. Alghamdi, Abdulrahman Alkhalaf
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Patent number: 9936913Abstract: The present system is directed in various embodiments to devices, systems and methods for detection, evaluation and/or monitoring olfactory dysfunction by measuring and determining the patient's olfactory detection threshold for the left and the right nostril. More specifically, the present invention relates to devices, systems and methods for detecting an asymmetric differential in a patient's olfactory detection threshold (left vs right nostril) which, when present, may be used as a tool to screen, detect, diagnose and/or monitor relative olfactory deterioration resulting from Alzheimer's disease. A preferred embodiment comprises cascading aromas by serially administering more than one pure odorant to the patient's nostrils, left vs right, with measurement of the time, or numbers of breaths, required to cognitively notice the pure odorants' presence.Type: GrantFiled: April 8, 2016Date of Patent: April 10, 2018Assignee: Inspired Technologies, Inc.Inventor: Gregory B. Mills
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Patent number: 9335306Abstract: An apparatus for collecting semivolatile organic chemicals (SOCs) from an atmosphere comprising a housing having an inlet and an outlet and at least one diffusion denuder contained in the housing. The at least one diffusion denuder has a plurality of capillaries coated with a stationary phase for capturing gaseous SOCs.Type: GrantFiled: July 16, 2013Date of Patent: May 10, 2016Inventors: Judith A. Perlinger, Mark Rowe
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Patent number: 9174203Abstract: Selective and efficient multifunctional nanoporous catalysts containing spatially distributed organoamine and silanol groups, and methods of preparation thereof. The catalysts have been observed to be very highly efficient in catalysis of the Henry reaction.Type: GrantFiled: August 16, 2010Date of Patent: November 3, 2015Inventors: Tewodros Asefa, Krishna K. Sharma
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Publication number: 20150114228Abstract: A filter element for the filtration of the incoming cabin air of vehicles is disclosed. The filter element can be readily regenerated and reused in a dust-loaded environment. The filer element includes a main body formed from at least one filter medium. The main body has an inflow side and an outflow side. The filter element is used as a regenerable filter element for the filtration of the incoming cabin air in a vehicle which is subjected to elevated dust loading. A coating of nanofibres and/or a diaphragm is arranged on the inflow side of the main body.Type: ApplicationFiled: October 23, 2014Publication date: April 30, 2015Inventors: Thomas Stoeßer, Maik Sieh, Renate Tapper
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Publication number: 20150071829Abstract: A honeycomb filter includes a honeycomb fired body made of silicon carbide particles. The honeycomb fired body includes cell walls, a peripheral wall, and a silicon-containing oxide layer. The cell walls are to define cells placed in a longitudinal direction of the honeycomb fired body. The cell walls have a thickness of about 0.2 mm or less. Each of the cells has a first end portion and a second end portion opposite to the first end portion in the longitudinal direction. Either the first end portion or the second end portion of the each of the cells is sealed. The peripheral wall constitutes a periphery of the honeycomb fired body. The peripheral wall has a thickness larger than the thickness of the cell walls. The silicon-containing oxide layer is provided on surfaces of the silicon carbide particles.Type: ApplicationFiled: November 13, 2014Publication date: March 12, 2015Applicant: IBIDEN CO., LTD.Inventors: Tomokazu OYA, Masatoshi OKUDA, Tatsuro SUGINO
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Patent number: 8961642Abstract: A filter device for separating paint overspray from a raw gas flow containing overspray particles is provided, including at least one filter element, to which at least a part of the raw gas flow is feedable, and a clean gas chamber, to which the raw gas flow filtered by the filter element is feedable as a clean gas flow. In the event of a filter rupture at at least one filter element of the filter device, contamination of the clean gas side of the filter device and regions downstream of the filter device of a painting installation containing the filter device is kept as low as possible through use of at least one safety filter arranged downstream of the at least one filter element and associated with the clean gas chamber such that at least part of the clean gas flow is filterable in the event of a filter rupture.Type: GrantFiled: March 13, 2013Date of Patent: February 24, 2015Assignee: Dürr Systems GmbHInventors: Sebastian Holler, Jürgen Steinbach, Katharina Hess
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Patent number: 8940259Abstract: A catalyzed soot filter for a diesel engine comprises a wall flow substrate having a substrate axial length, wherein surfaces of both the internal walls of a plurality of inlet and a plurality of outlet channels comprise a catalytic washcoat of at least one on-wall coating composition for oxidizing NO in exhaust gas to NO2, wherein the washcoat on the inlet channels extends for an axial inlet coating length from an open inlet end to a downstream inlet coating end, the washcoat on the outlet channels extends for an axial outlet coating length from an upstream outlet end to an open outlet end, the axial inlet coating length and the axial outlet coating length are both less than the substrate axial length and the outlet coating length is greater than the inlet coating length.Type: GrantFiled: October 31, 2013Date of Patent: January 27, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: Gavin Michael Brown, Andrew Francis Chiffey, David Marvell
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Patent number: 8919110Abstract: A filter for filtering particulate matter (PM) from exhaust gas emitted from a positive ignition engine or a compression ignition engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a washcoat comprising a plurality of solid particles wherein the porous structure of the washcoated porous substrate contains pores of a second mean pore size, and wherein the second mean pore size is less than the first mean pore size.Type: GrantFiled: August 19, 2013Date of Patent: December 30, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Louise Clare Arnold, Robert James Brisley, Christopher Gough Morgan
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Publication number: 20140373715Abstract: A method and apparatus are provided for separating droplets of finely aerosolized elemental mercury from a fluid stream in which the droplets are dispersed, particularly a gaseous stream. In the method, a precious metal wire capillary surface or precious metal-coated wire capillary surface is contacted with the gaseous stream, causing the aerosolized droplets to deposit on the capillary surface and by capillary action to coalesce with other of such droplets. The surface is oriented to allow the mercury to flow by gravitational forces and capillary action to the lowermost portions of the surface, where it accumulates and can be collected. Metallic capillary surfaces comprised of finely braided strands of silver, gold, palladium, platinum, or rhodium wire, or wire coated with one or more of these metals, are particularly preferred.Type: ApplicationFiled: September 8, 2014Publication date: December 25, 2014Applicant: MYCELX TECHNOLOGIES CORPORATIONInventor: Hal Alper
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Patent number: 8858669Abstract: An oil coalescing filter may be used in an oil separator tank with an industrial sized compressor/vacuum package, like a rotary screw compressor/vacuum or a liquid ring compressor/vacuum. The oil coalescing filter has filter media including: a first fiber media adapted for continuously removing oil; and a second fiber media adapted for final oil coalescing; the first fiber media having a greater basis weight than said second fiber media.Type: GrantFiled: May 1, 2012Date of Patent: October 14, 2014Assignee: Allied Separation Technology, Inc.Inventor: Jeffrey Lynn Gardner
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Patent number: 8815189Abstract: Exhaust systems and components are suitable for use with gasoline engines to capture particulates and to reduce gaseous emissions, where three-way conversion (TWC) catalysts located on a particulate filters are provided. Coated particle filters having washcoat loadings in the range of 1 to 4 g/ft3 result in minimal impact on back pressure while simultaneously providing TWC catalytic activity and particle trapping functionality to meet increasingly stringent regulations such as Euro 6. Sufficient to high levels of oxygen storage components (OSC) are also delivered on and/or within the filter. The filters can have a coated porosity that is substantially the same as its uncoated porosity. The TWC catalytic material can comprise a particle size distribution such that a first set of particles has a first d90 particle size of 7.5 ?m or less and a second set of particles has a second d90 particle size of more than 7.5 ?m.Type: GrantFiled: April 15, 2011Date of Patent: August 26, 2014Assignee: BASF CorporationInventors: Mirko Arnold, Stephan Siemund, Attilio Siani, Knut Wassermann
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Patent number: 8815190Abstract: A wall-flow filter comprises a catalyst for converting oxides of nitrogen in the presence of a reducing agent, which wall-flow filter comprising an extruded solid body comprising: 10-95% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% by weight optionally stabilized ceria, which catalyst comprising at least one metal, wherein: the at least one metal is present throughout the extruded solid body alone or in combination with: is also present in a higher concentration at a surface of the extruded solid body; is also carried in one or more coating layer(s) on a surface of the extruded solid body; or both.Type: GrantFiled: November 12, 2013Date of Patent: August 26, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Ralf Dotzel, Rainer Leppelt, Jörg Werner Münch, Hubert Schedel
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Publication number: 20140190352Abstract: A structure for collecting liquid droplets from an aerosol can have a structure and properties that are selected for efficient liquid collection. In particular, the strand radius and spacing of a mesh, and a material for coating the mesh, can be selected to provide efficient collection of water droplets from fog.Type: ApplicationFiled: January 10, 2014Publication date: July 10, 2014Inventors: Kyoo-Chul Park, Shreerang S. Chhatre, Gareth H. McKinley, Robert E. Cohen
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Publication number: 20140165835Abstract: The system makes it possible to control and treat gas emanations inside a wastewater access shaft. The system includes a cover with at least one pivoting part, which is normally closed, having a substantially horizontal rotation axis and able to allow solid and/or liquid matter falling onto the main upper surface of the cover to pass toward the bottom of the access shaft. The cover also includes a raised part that has at least one lateral wall and includes a plurality of orifices situated vertically above the main upper surface of the cover. The orifices define an outlet of a gas-emanations circuit formed between the underside and the top of the cover. An air filter is arranged across the circuit. The filter is moistened by a liquid that comes from a reservoir in order to treat the emanations.Type: ApplicationFiled: February 20, 2014Publication date: June 19, 2014Inventor: Francois PERRON
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Patent number: 8721756Abstract: The filter of the invention is a cartridge filter comprising a structure that can maintain a filter medium in an air stream to filter particulates to protect a gas turbine power system. The filter combines a mechanically adequate filter structure and an effective filter medium for to obtain a useful system.Type: GrantFiled: September 14, 2012Date of Patent: May 13, 2014Assignee: Donaldson Company, Inc.Inventors: Michael W. Handley, Mark Brandenhoff, Kirit Patel, Timothy D. Sporre
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Patent number: 8722000Abstract: Catalytic articles, systems and methods for treating exhaust gas streams are described. A catalytic article comprising a wall flow filter having gas permeable walls, a hydrolysis catalyst, an optional soot oxidation catalyst, a selective catalytic reduction catalyst permeating the walls, an ammonia oxidation catalyst and an oxidation catalyst to oxidize CO and hydrocarbons is described. Methods of treating exhaust gas streams comprising soot, an ammonia precursor such as urea, ammonia, NOx, CO and hydrocarbons are also provided.Type: GrantFiled: March 29, 2012Date of Patent: May 13, 2014Assignee: BASF CorporationInventor: R. Samuel Boorse
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Patent number: 8703062Abstract: The present disclosure relates to purification and/or sterilization techniques and devices. Methods and systems are provided herein for removing contaminants from air using a combination of an ionic liquid and a reactive oxygen species.Type: GrantFiled: April 10, 2013Date of Patent: April 22, 2014Assignee: Empire Technology Development LLCInventor: Takahisa Kusuura
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Patent number: 8673040Abstract: The filter of the invention is a cartridge filter comprising a structure that can maintain a filter medium in an air stream to filter particulates to protect a gas turbine power system. The filter combines a mechanically adequate filter structure and an effective filter medium for to obtain a useful system.Type: GrantFiled: June 11, 2009Date of Patent: March 18, 2014Assignee: Donaldson Company, Inc.Inventors: Michael W. Handley, Mark Brandenhoff, Kirit Patel, Timothy D. Sporre
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Patent number: 8673249Abstract: The invention includes a process for reducing the amount of NOx discharged to atmosphere from a FCC unit, having a regenerator and a means for collecting and supporting catalyst particles. The process comprises adding a catalyst to the regenerator flue gas prior to entering the collecting means and precipitating the catalyst in the collecting means to form a catalyst bed. Ammonia or ammonia precursor is added to the flue gas prior to and/or within the collecting means. The flue gas NOx is reacted with the ammonia or ammonia precursor at 200° C. to 800° C. in the presence of the catalyst bed to reduce the NOx amount, and the flue gas containing a reduced amount of NOx is discharged to atmosphere. The catalyst is one or more supported transition or lanthanide metal catalysts. The process can also be utilized in any combustion process.Type: GrantFiled: February 22, 2013Date of Patent: March 18, 2014Assignee: Intercat, Inc.Inventors: Martin Evans, Xunhua Mo, Raymond Paul Fletcher
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Patent number: 8641993Abstract: A NOx absorber catalyst comprising an extruded solid body comprises either: (A) 10-95% by weight of at least one binder/matrix component; and 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof, which catalyst comprising at least one metal comprising (a) at least one precious metal; and (b) at least one alkali metal or at least one alkaline earth metal, wherein (a) and (b) are carried in one or more coating layer(s) on a surface of the extruded solid body; or (B) 10-95% by weight of at least one binder/matrix component; and 5-80% by weight optionally stabilized ceria, which catalyst comprising at least one metal comprising (a) at least one precious metal; and (b) at least one alkali metal or at least one alkaline earth metal.Type: GrantFiled: February 1, 2011Date of Patent: February 4, 2014Assignee: Johnson Matthey Public Limited Co.Inventors: Ralf Dotzel, Rainer Leppelt, Elizabeth Hazel Mountstevens, Jörg Werner Münch, Paul Richard Phillips, Hubert Schedel, Daniel Swallow
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Patent number: 8613895Abstract: A method and system remove contaminants from a vapor. In one embodiment, the system includes a contaminant removal system having a vacuum box. A contaminated vapor from process equipment is introduced to the vacuum box. The contaminated vapor includes steam and hydrocarbons. The vacuum box includes a water removal device. The water removal device removes water from the contaminated vapor to provide water and a reduced water vapor. The water and the reduced water vapor are removed from the vacuum box.Type: GrantFiled: October 12, 2012Date of Patent: December 24, 2013Assignee: Global Vapor Control, Inc.Inventors: Alan Finley, Doug Scott, Lisha Salathiel
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Patent number: 8609028Abstract: Inhalation of low levels of nitric oxide can rapidly and safely decrease pulmonary hypertension in mammals. A nitric oxide delivery system that converts nitrogen dioxide to nitric oxide employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid.Type: GrantFiled: July 23, 2012Date of Patent: December 17, 2013Assignee: Geno LLCInventors: David R. Rounbehler, David H. Fine
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Patent number: 8609047Abstract: A wall-flow filter comprises a catalyst for converting oxides of nitrogen in the presence of a reducing agent, which wall-flow filter comprising an extruded solid body comprising: 10-95% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% by weight optionally stabilized ceria, which catalyst comprising at least one metal, wherein: the at least one metal is present throughout the extruded solid body alone or in combination with: is also present in a higher concentration at a surface of the extruded solid body; is also carried in one or more coating layer(s) on a surface of the extruded solid body; or both.Type: GrantFiled: February 1, 2011Date of Patent: December 17, 2013Assignee: Johnson Matthey Public Limited CompanyInventors: Ralf Dotzel, Rainer Leppelt, Jörg Werner Münch, Hubert Schedel
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Patent number: 8603227Abstract: Disclosed are a composition for the prophylaxis of influenza viral infection comprising tannic acid, an air filter coated with the same, and an air cleaner comprising the air filter. Having high inhibitory activity against influenza virus, the composition comprising tannic acid can be applied to the prevention of influenza viral infection. Also, the filter coated with the composition can remove influenza virus from the air so that it can be employed in an air cleaner for the prophylaxis of influenza viral infection.Type: GrantFiled: September 11, 2012Date of Patent: December 10, 2013Assignee: Woongjin Coway Co., Ltd.Inventors: Hyoung Joon Kim, Chan Jung Park
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Publication number: 20130263738Abstract: A high temperature filter containing a membrane, a support substrate, and a porous adhesive layer. The porous adhesive layer is adjacent the inner surface of the membrane and the inner surface of the support substrate such that the membrane and the support substrate sandwich the porous adhesive layer. The porous adhesive layer comprises an adhesive having an adhesive operating temperature of at least about 450° F. The support substrate is a woven textile, a non-woven textile, a knit textile, or a film, and has a support operating temperature of at least about 500° F.Type: ApplicationFiled: April 10, 2012Publication date: October 10, 2013Inventors: Yunzhang Wang, Paul J. Wesson, Kirkland W. Vogt
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Publication number: 20130260625Abstract: Provided is an improved method of removing lint in clothes dryers utilizing a lint capturing sheet in the lint screen. Also provided is a method of utilizing the lint capturing sheet to clean other internal surfaces of the dryer. The lint capturing sheet includes a non-woven fabric saturated in an aqueous solution of from 90 to 99.999 vol. % water and from 0.001 to 10 vol. % of water soluble ingredients that increase the electrical conductivity of the water. The non-woven fabric is negative on the Triboelectric series and the weight ratio of non-woven fabric to the aqueous solution in the lint capturing sheet ranges from 1:1 to 1:30. Also provided are methods of making the lint capturing sheet and devices including the lint capturing sheet for wiping difficult to clean internal areas of the dryer.Type: ApplicationFiled: March 8, 2013Publication date: October 3, 2013Inventors: Jose E. Ramirez, Donna Ramirez
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Patent number: 8540791Abstract: 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: June 11, 2012Date of Patent: September 24, 2013Assignee: Camfil Farr, Inc.Inventor: Lee Pendleton Morgan
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Patent number: 8524182Abstract: Disclosed is a catalyzed soot filter with layered design wherein the first coating of the filter comprises an oxidation catalyst comprising platinum (Pt) and optionally palladium (Pd), wherein the second coating of the filter comprises an oxidation catalyst comprising Pd and optionally Pt, wherein the Pt concentration in the second coating is lower than the Pt concentration in the first coating, and wherein the weight ratio of Pt:Pd in the second coating is in the range of from 1:1 to 0:1; and wherein the first coating and the second coating are present on the wall flow substrate at a coating loading ratio in the range of from 0.25 to 3, calculated as ratio of the loading of the first coating (in g/inch3 (g/(2.54 cm)3)): loading of the second coating (in g/inch3 (g/(2.54 cm)3)).Type: GrantFiled: May 11, 2012Date of Patent: September 3, 2013Assignees: BASF SE, BASF CorporationInventors: Gerd Grubert, Alfred Punke, Torsten Neubauer, Ruediger Wolff, Stanley Roth, Yuejin Li, Torsten Müller-Stach, Marcus Hilgendorff
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Patent number: 8518141Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: GrantFiled: August 13, 2012Date of Patent: August 27, 2013Assignee: Donaldson Company, Inc.Inventors: Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne Bishop, Gregory Reichter, Benny Nelson, Rodger Spears, Bruce Crenshaw, Vladimir Kladnitsky
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Patent number: 8512657Abstract: A filter for filtering particulate matter (PM) from exhaust gas emitted from a positive ignition engine or a compression ignition engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a washcoat comprising a plurality of solid particles wherein the porous structure of the washcoated porous substrate contains pores of a second mean pore size, and wherein the second mean pore size is less than the first mean pore size.Type: GrantFiled: August 31, 2011Date of Patent: August 20, 2013Assignee: Johnson Matthey Public Limited CompanyInventors: Louise Clare Arnold, Robert James Brisley, Christopher Gough Morgan
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Patent number: 8484953Abstract: An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating is applied to the PF that increases a temperature of the combustion of the particulates within the PF.Type: GrantFiled: October 22, 2007Date of Patent: July 16, 2013Inventors: Eugene V. Gonze, Michael J. Paratore, Jr., Frank Ament
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Publication number: 20130153517Abstract: The present invention relates to a filter composed of a multi-ply filter medium which (i) has at least one textile stiffening layer (layer 4), preferably a non-woven layer, of synthetic, polymer fibers, glass fibers or mixtures of the same, (ii) at least one filtration layer (layer 3), which is attached to at least one side of the non-woven stiffening fabric, the filtration layer being made up of glass fibers, (iii) at least one further filtration layer (layer 2), which is applied on the filtration layer according to ii), the further filtration layer being made up of glass fibers, and at least one textile cover layer (layer 1), which is applied on the filtration layer according to (iii), the cover layer being made up of synthetic polymer fibers.Type: ApplicationFiled: November 26, 2012Publication date: June 20, 2013Applicant: JOHNS MANVILLEInventor: JOHNS MANVILLE
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Publication number: 20130133517Abstract: The invention relates to a hotmelt adhesive comprising a hotmelt adhesive mixture, the mixture including a) 15-85% by weight of a first, polyester-based hotmelt adhesive and b) 15-85% by weight of a second, polyamide-based hotmelt adhesive.Type: ApplicationFiled: January 28, 2013Publication date: May 30, 2013Applicant: MANN+HUMMEL GMBHInventor: MANN+HUMMEL GMBH
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Patent number: 8377177Abstract: In order to provide a method for supplying fresh auxiliary material, which is added to a stream (120) of crude gas laden with wet paint overspray before the stream of crude gas passes through at least one filter element (172) for separating the overspray from the steam of crude gas, to at least one filter device (132) which comprises at least one receptacle (176) for auxiliary material, which is in its operating position, while the stream of crude gas is passing through the filter element, which method enables better action of the auxiliary material on the stream of crude gas and makes a particularly efficient supply of fresh auxiliary material to the at least one filter device possible, it is suggested that the fresh auxiliary material be supplied directly into the receptacle for auxiliary material while the receptacle for auxiliary material is in the operating position.Type: GrantFiled: February 24, 2010Date of Patent: February 19, 2013Assignee: Durr Systems GmbHInventors: Jens Holzheimer, Dietmar Wieland
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Publication number: 20130036908Abstract: Apparatus and methods for reducing or eliminating undesirable air-borne substances, such as odors, bacteria, viruses, fungi, and toxins, are provided. A filter containing nanocrystalline metal oxide or metal hydroxide particles may be installed within an air handling apparatus such as an existing HVAC unit located within a building, and particularly within a home, or a portable air processor or purifier. The air handling apparatus comprises a blower which pulls air containing various undesirable substances from within the enclosed environment and directs it through a filtering device containing the nanocrystalline particles. The undesirable substances are sorbed by the nanocrystalline particles thereby creating a deodorized stream of air that may then be directed back into various portions of the enclosed environment or vented to the atmosphere.Type: ApplicationFiled: October 17, 2012Publication date: February 14, 2013Applicant: NanoScale CorporationInventor: NanoScale Corporation
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Publication number: 20130025456Abstract: An air purifying filter having vitamins, enzymes and/or other beneficial particles trapped between two light scrims of a carrier. The filter controls the release of the beneficial particles by using a predetermined size and shape of the openings in the air purifying filter media, and by reacting the particles with the air or other matter that passes through the filter, thereby causing the particles to shrink. The filter is also capable of retaining microorganisms by killing or otherwise controlling them due to the beneficial particles of the filter.Type: ApplicationFiled: July 25, 2012Publication date: January 31, 2013Inventor: Rick L. Chapman
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Patent number: 8356621Abstract: A device for increasing service life of a combustion installation is disclosed. The combustion installation has a gas-conducting component and a conducted gas has dirt particles. The gas-conducting component has a layer which is partially detached together with the dirt particles of the gas when the layer is impinged with the gas and when a dirt particle is deposited on the layer.Type: GrantFiled: October 5, 2007Date of Patent: January 22, 2013Assignee: Siemens AktiengesellschaftInventors: Frank Hannemann, Berthold Köstlin, Rainer Nies
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Patent number: 8308851Abstract: The invention relates to compositions and methods for separating oil and other contaminants (particularly oleophilic compounds) from water, gas and other carriers. The invention is useful for separating oil, including emulsified oil, from water and other oleophilic compounds from bilgewater and other wastewater. The compositions comprise a hydrocarbon resin and a drying oil, which may be combined in an organic solvent. For example, hydrocarbon resin and tung oil are optionally combined into a naphtha solvent. The invention is also useful for removing a variety of contaminants from an air stream, such as exhaust from internal combustion engines, burners, and other sources.Type: GrantFiled: December 23, 2009Date of Patent: November 13, 2012Inventor: David Roberts
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Patent number: RE47737Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.Type: GrantFiled: June 19, 2017Date of Patent: November 26, 2019Assignee: Donaldson Company, Inc.Inventors: Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones, Gregory L. LaVallee, Michael A. Madden, Chuanfang Yang, Robert M. Rogers, Paul L. Kojetin, Timothy D. Sporre
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Patent number: RE49097Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.Type: GrantFiled: November 8, 2019Date of Patent: June 7, 2022Assignee: Donaldson Company, Inc.Inventors: Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones, Gregory L. LaVallee, Michael A. Madden, Chuanfang Yang, Robert M. Rogers, Paul L. Kojetin, Timothy D. Sporre