Patents Assigned to Koch Membrane Systems, Inc.
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Publication number: 20180221826Abstract: A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.Type: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Applicant: Koch Membrane Systems, Inc.Inventors: Taylour Johnson, David M. Colby, Manwinder Singh
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Patent number: 9968888Abstract: The present invention is directed to a method of sealing the free end of a hollow fiber membrane for use in a single header filtration module by dipping the end of the membrane into a low-viscosity light-curable adhesive and curing the adhesive. The invention further encompasses the resulting sealed hollow fiber membrane with a diameter that is only slightly larger than the diameter of the unsealed membrane.Type: GrantFiled: September 30, 2016Date of Patent: May 15, 2018Assignee: Koch Membrane Systems, Inc.Inventors: Taylour Johnson, David Colby
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Patent number: 9956530Abstract: A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.Type: GrantFiled: April 8, 2016Date of Patent: May 1, 2018Assignee: Koch Membrane Systems, Inc.Inventors: Taylour Johnson, David M Colby, Manwinder Singh
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Publication number: 20170173538Abstract: An enclosure assembly configured to receive a plurality of fiber membranes configured to filter fluid may include an elongated tubular member including an elongated wall extending between first and second ends, and a removable hatch coupled to opposing side edges of the elongated wall, thereby forming a hollow enclosure having an interior. The interior of the elongated tubular member may be configured to receive a plurality of fiber membranes configured to filter fluid.Type: ApplicationFiled: March 6, 2015Publication date: June 22, 2017Applicant: Koch Membrane Systems, Inc.Inventors: Taylor Johnson, David M. Colby, Manwinder Singh
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Publication number: 20170014775Abstract: The present invention is directed to a method of sealing the free end of a hollow fiber membrane for use in a single header filtration module by dipping the end of the membrane into a low-viscosity light-curable adhesive and curing the adhesive. The invention further encompasses the resulting sealed hollow fiber membrane with a diameter that is only slightly larger than the diameter of the unsealed membrane.Type: ApplicationFiled: September 30, 2016Publication date: January 19, 2017Applicant: Koch Membrane Systems, Inc.Inventors: Taylour Johnson, David Colby
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Publication number: 20170007970Abstract: The present disclosure provides a novel spiral wound membrane leaf packet with a unique substantially non-permeable polymeric resin folding area that has desirable physical and chemical resistance to strong cleaning conditions in industrial filtration applications including food or dairy processing, and the method to make and use the spiral wound membrane leaf packet, and a membrane filtration module that include the novel spiral wound membrane leaf packet.Type: ApplicationFiled: June 30, 2016Publication date: January 12, 2017Applicant: Koch Membrane Systems, Inc.Inventors: Michael Baruch, Anthony C Eringis, Thomas C McDermott, JR.
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Patent number: 9498753Abstract: The present invention is directed to a method of sealing the free end of a hollow fiber membrane for use in a single header filtration module by dipping the end of the membrane into a low-viscosity light-curable adhesive and curing the adhesive. The invention further encompasses the resulting sealed hollow fiber membrane with a diameter that is only slightly larger than the diameter of the unsealed membrane.Type: GrantFiled: March 15, 2012Date of Patent: November 22, 2016Assignee: Koch Membrane Systems, Inc.Inventors: Taylour Johnson, David Colby
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Publication number: 20160220963Abstract: A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.Type: ApplicationFiled: April 8, 2016Publication date: August 4, 2016Applicant: Koch Membrane Systems, Inc.Inventors: Taylour Johnson, David M. Colby, Manwinder Singh
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Patent number: 9333464Abstract: A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.Type: GrantFiled: October 20, 2015Date of Patent: May 10, 2016Assignee: Koch Membrane Systems, Inc.Inventors: Taylour L. Johnson, David M. Colby, Manwinder Singh
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Publication number: 20160114292Abstract: A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.Type: ApplicationFiled: October 20, 2015Publication date: April 28, 2016Applicant: Koch Membrane Systems, Inc.Inventors: David M. Colby, Taylour Johnson, Manwinder Singh
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Publication number: 20160023165Abstract: A single header filter cartridge for removing contaminates from water using a plurality of hollow fiber membrane filters, and methods of using the same, is provided. The single header filter cartridge contains a plurality of hollow fiber membrane filters secured at the top of the cartridge in a header to form a fiber bundle, the filter ends designed to be freely suspended in the water, a central aeration tube positioned at the cartridge bottom, and a vent tube positioned near the cartridge top that creates a void space within the fiber bundle.Type: ApplicationFiled: July 23, 2015Publication date: January 28, 2016Applicant: KOCH MEMBRANE SYSTEMS, INC.Inventors: David M. Colby, Taylor Johnson
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Patent number: 7387731Abstract: A coupler for a spiral membrane filtration element having a spiral membrane enclosed within a rigid outerwrap includes a center support, a plurality of spokes extending outwardly from the center support, a circular rim coupled with the spokes, with the face of the rim being perpendicular to the axis of the overwrap. The rim includes a channel on its face for receiving a compressible seal, and a plurality of receptacles around its outer surface for joining two face-to-face adjacent couplers when a pair of aligned keepers is place in each receptacle. Exemplary embodiments of the coupler and filtration elements and filtration assemblies are provided, as well as an associated method.Type: GrantFiled: November 21, 2005Date of Patent: June 17, 2008Assignee: Koch Membrane Systems, Inc.Inventors: David M. Colby, Frederick K. Lesan, Alan M. Franks, Chang-Li Hsieh, Anjan Kumar Mukherjee
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Patent number: 7335301Abstract: The present invention encompasses a leaf packet useful in forming a spiral filtration module, wherein the fold area of the leaf packet is reinforced with a UV cured adhesive. The invention further encompasses a spiral filtration module wherein the fold line, side seams and/or axial seams of the membranes utilized in the module are reinforced with a UV curable adhesive. The present invention further encompasses the method for making such leaf packet and such spiral filtration modules.Type: GrantFiled: November 22, 2002Date of Patent: February 26, 2008Assignee: Koch Membrane Systems, Inc.Inventor: Haitao Cheng
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Patent number: 7311830Abstract: A coupler for a spiral membrane filtration element having a spiral membrane enclosed within a rigid outerwrap includes a center support, a plurality of spokes extending outwardly from the center support, a circular rim coupled with the spokes, with the face of the rim being perpendicular to the axis of the overwrap. The rim includes a channel on its face for receiving a compressible seal, and a plurality of receptacles around its outer surface for joining two face-to-face adjacent couplers when a pair of aligned keepers is placed in each receptacle. Exemplary embodiments of the coupler and filtration elements and filtration assemblies are provided, as well as an associated method.Type: GrantFiled: April 14, 2006Date of Patent: December 25, 2007Assignee: Koch Membrane Systems, Inc.Inventors: David M. Colby, Frederick K. Lesan, Alan M. Franks, Chang-Li Hsieh, Anjan Kumar Mukherjee
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Patent number: 7063789Abstract: A coupler for a spiral membrane filtration element having a spiral membrane enclosed within a rigid outerwrap includes a center support, a plurality of spokes extending outwardly from the center support, a circular rim coupled with the spokes, with the face of the rim being perpendicular to the axis of the overwrap. The rim includes a channel on its face for receiving a compressible seal, and a plurality of receptacles around its outer surface for joining two face-to-face adjacent couplers when a pair of aligned keepers is place in each receptacle. Exemplary embodiments of the coupler and filtration elements and filtration assemblies are provided, as well as an associated method.Type: GrantFiled: January 9, 2004Date of Patent: June 20, 2006Assignee: Koch Membrane Systems, Inc.Inventors: David M. Colby, Frederick K. Lesan, Alan M. Franks, Chang-Li Hsieh, Anjan Kumar Mukherjee
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Publication number: 20040099598Abstract: The present invention encompasses a leaf packet useful in forming a spiral filtration module, wherein the fold area of the leaf packet is reinforced with a UV cured adhesive. The invention further encompasses a spiral filtration module wherein the fold line, side seams and/or axial seams of the membranes utilized in the module are reinforced with a UV curable adhesive. The present invention further encompasses the method for making such leaf packet and such spiral filtration modules.Type: ApplicationFiled: November 22, 2002Publication date: May 27, 2004Applicant: KOCH MEMBRANE SYSTEMS, INC.Inventor: Haitao Cheng
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Patent number: 6596167Abstract: A hydrophilic membrane that includes a hydrophobic polymer and a water-soluble polymer-metal complex is provided. This membrane is made by heating a mixture of a hydrophobic polymer, a metal compound, and a water-soluble polymer. The water-soluble polymer forms complexes with the metal compound and homogeneously entangles with the dissolved hydrophobic polymer to form a viscous dope. The dope is extruded through an annular orifice to form a hollow fiber. The fiber is put in an environment having a controlled humidity so that it becomes partially solidified, and then, the fiber is put in a coagulation bath. The hollow fiber is formed by phase inversion in the coagulation bath and is collected using a take-up wheel that is partially immersed in a leaching bath.Type: GrantFiled: March 26, 2001Date of Patent: July 22, 2003Assignee: Koch Membrane Systems, Inc.Inventors: Jiang Ji, Candeloro Dicecca, Mahesh J. Mehta
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Patent number: 6536605Abstract: High quality reverse osmosis, nanofiltration, and ultrafiltration membranes are produced by a high speed process wherein the membranes which have excellent rejection characteristics coupled with high flux capabilities. The process employs tandem coating techniques to coat a microporous substrate with a thin membrane on the order of 25 Å to 1.0 microns. The tandem coating process comprises tandem offset gravure and subsequent slot die coating applicators, or alternatively comprises tandem slot die coating applicators. For reverse osmosis and nanofiltration membranes, a wet-on-wet coating process is used to coat a porous substrate first with an aqueous solution, and then with an organic solution to produce a cross-linked, interfacially polymerized composite membrane. Single slot coating applicators are utilized to produce ultrafiltration membranes.Type: GrantFiled: December 7, 2001Date of Patent: March 25, 2003Assignee: Koch Membrane Systems, Inc.Inventors: William C. Rice, John P. Puglia
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Patent number: D779631Type: GrantFiled: October 22, 2015Date of Patent: February 21, 2017Assignee: KOCH MEMBRANE SYSTEMS, INC.Inventors: Taylour L Johnson, David M. Colby
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Patent number: D779632Type: GrantFiled: October 22, 2015Date of Patent: February 21, 2017Assignee: KOCH MEMBRANE SYSTEMS, INC.Inventors: Taylour L Johnson, David M. Colby