Patents by Inventor Andrew J. Dallas
Andrew J. Dallas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210106935Abstract: The current technology relates to substrate treatments, treated substrates, and filters. Treated substrates can have a treated surface that defines a pattern and/or gradient among untreated surface areas. A treated surface area can have a higher roll off angle for a 50 ?L water droplet when the surface is immersed in toluene that the untreated surface areas. Substrates can be treated by, for example, exposing a substrate surface and/or fibers to ultraviolet (UV) radiation. UV radiation can be applied to surfaces via a mask, lens, waveguide, reflector, as examples. UV radiation can be applied to surfaces at varying intensities, which can create a treatment gradient.Type: ApplicationFiled: February 14, 2019Publication date: April 15, 2021Inventors: Aflal Rahmathullah, Andrew J. Dallas, Stephen K. Sontag, Bradly G. Hauser, Davis B. Moravec, Vijay K. Kapoor, Matthew P. Goertz, Daniel L. Tuma, Warren E. Dammann, Michael J. Cronin, Mike J. Madsen, Stuti S. Rajgarhia, Charles S. Christ, Joseph M. Block
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Publication number: 20210060456Abstract: The current technology relates to filter media configurations where the filter media has a surface with a treatment that that increases the roll off angle of the surface for a 50 ?L water droplet when the surface is immersed in toluene. Some example filter media has a fluted configuration, and some example filter media has multiple layers. Filter media having multiple layers can be single facer media, for example, where one layer is planar and another layer is fluted.Type: ApplicationFiled: February 14, 2019Publication date: March 4, 2021Inventors: Aflal Rahmathullah, Andrew J. Dallas, Brian R. Tucker, Daniel E. Adamek, Paul A. Way, Scott A. Betcher, Vijay K. Kapoor, Colter A. Marcks, William S. Rossiter, Timothy O. Winters, Wijadi Jodi, Bradly G. Hauser, Davis B. Moravec, Matthew P. Goertz, Stephen K. Sontag, Stuti S. Rajgarhia, Charles S. Christ, Joseph M. Block
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Publication number: 20210016214Abstract: The current technology relates to various filter elements configurations where a substrate layer defines a surface having a treatment. The treatment increases a roll off angle of the surface for a 50 water droplet when the surface is immersed in toluene. The filter element can have a housing and the substrate disposed in the housing. In some embodiments the substrate layer defines a plurality of pleats extending between pleat folds that form flow faces of the media. In some embodiments the substrate is incorporated into single facer media of a filter element. In some embodiments the substrate layer is incorporated in a filter element having a flow-by configuration. In some embodiments the substrate layer is incorporated in a filter element having a cross-flow configuration. Some embodiments relate to a vent. Some embodiments relate to a barrier assembly and/or a fuel filter element. Various other filter elements are described.Type: ApplicationFiled: February 14, 2019Publication date: January 21, 2021Inventors: Aflal Rahmathullah, Andrew J. Dallas, Brian R. Tucker, Daniel E. Adamek, Paul A. Way, Scott A. Betcher, Vijay K. Kapoor, Colter A. Marcks, William S. Rossiter, Timothy O. Winters, Wijadi Jodi, Davis B. Moravec, Stephen K. Sontag, Bradly G. Hauser, Matthew P. Goertz, Derek O. Jones, Yehya A. Elsayed, Stuti S. Rajgarhia, Charles S. Christ, Joseph M. Block
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Publication number: 20200405522Abstract: A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.Type: ApplicationFiled: May 8, 2020Publication date: December 31, 2020Inventors: Lloyd G. Keleny, Veli E. Kalayci, Michael J. Hebert, Yehya A. Elsayed, David W. Mulder, Andrew J. Dallas
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Publication number: 20200324243Abstract: Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove siloxane contaminants from a gas stream. The method includes providing an adsorbent material that has been washed with an acid and passing a gas through the adsorbent material so as to reduce siloxane levels in the gas. A filter element for reducing siloxane levels in a gas includes a first adsorbent material, the first adsorbent material comprising an acid-washed adsorbent; and a second adsorbent material, the second adsorbent material comprising an acid-impregnated adsorbent.Type: ApplicationFiled: May 30, 2020Publication date: October 15, 2020Inventors: Brian N. Hoang, Gerald Weineck, Karthik Viswanathan, Andrew J. Dallas
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Patent number: 10688433Abstract: Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove siloxane contaminants from a gas stream. The method includes providing an adsorbent material that has been washed with an acid and passing a gas through the adsorbent material so as to reduce siloxane levels in the gas. A filter element for reducing siloxane levels in a gas includes a first adsorbent material, the first adsorbent material comprising an acid-washed adsorbent; and a second adsorbent material, the second adsorbent material comprising an acid-impregnated adsorbent.Type: GrantFiled: November 2, 2018Date of Patent: June 23, 2020Assignee: Donaldson Company, Inc.Inventors: Brian N. Hoang, Gerald Weineck, Karthik Viswanathan, Andrew J. Dallas
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Patent number: 10646370Abstract: A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.Type: GrantFiled: February 17, 2015Date of Patent: May 12, 2020Assignee: Donaldson Company, Inc.Inventors: Lloyd G. Keleny, Veli E. Kalayci, Michael J. Hebert, Yehya A. Elsayed, David W. Mulder, Andrew J. Dallas
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Patent number: 10604707Abstract: A hydrocarbon-in-water purification system includes an anion exchange stage having an anion exchange resin and an inlet and a water permeate outlet and a hydrocarbon outlet. The inlet is in fluid communication with a hydrocarbon-in-water emulsion source.Type: GrantFiled: March 17, 2016Date of Patent: March 31, 2020Assignee: Donaldson Company, Inc.Inventors: Davis B. Moravec, Andrew J. Dallas, Joseph M. Block, Bradly G. Hauser, Cullen E. Hall
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Publication number: 20200080008Abstract: A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. The high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon has a greater polishing capacity than the high capacity hydrocarbon absorber material. A method for controlling and managing the evacuation of water from the hydrocarbon-in-water purification system includes tracking the purification state of water volumes and the bed loading states of purification beds defined in the water filter.Type: ApplicationFiled: November 12, 2019Publication date: March 12, 2020Inventors: Davis B. Moravec, Andrew J. Dallas, Joseph M. Block, Bradly G. Hauser, Cullen E. Hall, Mark C. Shepherd, Mike J. Madsen
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Patent number: 10526548Abstract: A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. The high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon has a greater polishing capacity than the high capacity hydrocarbon absorber material. A method for controlling and managing the evacuation of water from the hydrocarbon-in-water purification system includes tracking the purification state of water volumes and the bed loading states of purification beds defined in the water filter.Type: GrantFiled: March 17, 2016Date of Patent: January 7, 2020Assignee: Donaldson Company, Inc.Inventors: Davis B. Moravec, Andrew J. Dallas, Joseph M. Block, Bradly G. Hauser, Cullen E. Hall, Mark C. Shepherd, Mike J. Madsen
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Publication number: 20190314745Abstract: A substrate for use in a filter media including, for example, in a hydrocarbon fluid-water separation filter; methods of identifying the substrate; methods of making the substrate; methods of using the substrate; and methods of improving the roll off angle of the substrate. In some embodiments, the substrate includes a hydrophilic group-containing polymer or a hydrophilic group-containing polymer coating.Type: ApplicationFiled: May 29, 2019Publication date: October 17, 2019Applicant: DONALDSON COMPANY, INC.Inventors: Bradly G. Hauser, Stephen K. Sontag, Davis B. Moravec, Stuti S. Rajgarhia, Andrew J. Dallas, Vijay K. Kapoor, Aflal Rahmathullah, Charles S. Christ, Joseph M. Block
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Publication number: 20190270040Abstract: A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.Type: ApplicationFiled: March 11, 2019Publication date: September 5, 2019Inventors: Derek O. Jones, Keh B. Dema, Stephen M. Larsen, Mike J. Madsen, Andrew J. Dallas, Yehya A. Elsayed, Chuanfang Yang
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Patent number: 10315140Abstract: A substrate for use in a filter media including, for example, in a hydrocarbon fluid-water separation filter; methods of identifying the substrate; methods of making the substrate; methods of using the substrate; and methods of improving the roll off angle of the substrate. In some embodiments, the substrate includes a hydrophilic group-containing polymer or a hydrophilic group-containing polymer coating.Type: GrantFiled: August 16, 2017Date of Patent: June 11, 2019Assignee: DONALDSON COMPANY, INC.Inventors: Bradly G. Hauser, Stephen K. Sontag, Davis B. Moravec, Stuti S. Rajgarhia, Andrew J. Dallas, Vijay K. Kapoor, Aflal Rahmathullah, Charles S. Christ, Joseph M. Block
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Patent number: 10226723Abstract: A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.Type: GrantFiled: May 20, 2015Date of Patent: March 12, 2019Assignee: Donaldson Company, Inc.Inventors: Derek O. Jones, Keh B. Dema, Stephen M. Larsen, Mike J. Madsen, Andrew J. Dallas, Yehya A. Elsayed, Chuanfang Yang
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Publication number: 20190070552Abstract: Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove siloxane contaminants from a gas stream. The method includes providing an adsorbent material that has been washed with an acid and passing a gas through the adsorbent material so as to reduce siloxane levels in the gas. A filter element for reducing siloxane levels in a gas includes a first adsorbent material, the first adsorbent material comprising an acid-washed adsorbent; and a second adsorbent material, the second adsorbent material comprising an acid-impregnated adsorbent.Type: ApplicationFiled: November 2, 2018Publication date: March 7, 2019Inventors: Brian N. Hoang, Gerald Weineck, Karthik Viswanathan, Andrew J. Dallas
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Patent number: 10213711Abstract: Described herein are filter assemblies for removing high molecular weight organic components from liquefied petroleum gas, as well as methods for removing high molecular weight components from liquefied petroleum gases. The filter assemblies include an upstream carbon-containing filter media pack and a downstream filter media pack.Type: GrantFiled: January 5, 2016Date of Patent: February 26, 2019Assignee: Donaldson Company, Inc.Inventors: Karthik Viswanathan, Philip Edward Johnson, Dustin Zastera, James Doyle, Gregory L. LaVallee, Janelle M. Hampton, Andrew J. Dallas
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Publication number: 20190001246Abstract: A liquid hydrocarbon filterability system includes a liquid hydrocarbon sample source piping in fluid communication with a liquid hydrocarbon sample container. A filtration media element is in fluid communication with the liquid hydrocarbon sample source piping. Filtered liquid hydrocarbon outlet piping is in fluid communication with and downstream of the filtration media element. A flow or volume measurement element is in fluid communication with the filtered liquid hydrocarbon outlet piping and is configured to measure an amount of liquid hydrocarbon passing through the filtration media element. A constant pressure source is configured to provide liquid hydrocarbon to the filtration media element at a constant pressure.Type: ApplicationFiled: December 14, 2016Publication date: January 3, 2019Inventors: Matthew Goertz, Davis B. Moravec, Andrew J. Dallas, Scott A. Grossbauer, Bradly G. Hauser, James N. Doyle, Daniel L. Tuma, Matthew T. Matsumoto, Kelly C. Robertson
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Patent number: 10130905Abstract: Adsorbent materials are disclosed, along with filter elements containing the adsorbent materials methods of using adsorbents to remove siloxane contaminants from a gas stream. The method includes providing an adsorbent material that has been washed with an acid and passing a gas through the adsorbent material so as to reduce siloxane levels in the gas. A filter element for reducing siloxane levels in a gas includes a first adsorbent material, the first adsorbent material comprising an acid-washed adsorbent; and a second adsorbent material, the second adsorbent material comprising an acid-impregnated adsorbent.Type: GrantFiled: October 4, 2017Date of Patent: November 20, 2018Inventors: Brian N. Hoang, Gerald Weineck, Karthik Viswanathan, Andrew J. Dallas
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Publication number: 20180250155Abstract: A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.Type: ApplicationFiled: February 17, 2015Publication date: September 6, 2018Inventors: Lloyd G. Keleny, Veli E. Kalayci, Michael J. Hebert, Yehya A. Elsayed, David W. Mulder, Andrew J. Dallas
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Patent number: 10058807Abstract: The assemblies of the invention can comprise a fine fiber layer having dispersed within the fine fiber layer an active particulate material. Fluid that flows through the assemblies of the invention can have any material dispersed or dissolved in the fluid react with, be absorbed by, or adsorbed onto, the active particulate within the nanofiber layer. The structures of the invention can act simply as reactive, absorptive, or adsorptive layers with no filtration properties, or the structures of the invention can be assembled into filters that can filter particulate from a mobile fluid while simultaneously reacting, absorbing, or adsorbing materials from the mobile fluid.Type: GrantFiled: February 14, 2017Date of Patent: August 28, 2018Inventors: Andrew J. Dallas, William Lefei Ding, Jon D. Joriman, Dustin Zastera, James R. Giertz, Veli E. Kalayci, Hoo Y. Chung