Patents by Inventor Lixin L. Xue
Lixin L. Xue 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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Patent number: 10226070Abstract: A filter rod comprises a core of cellulose acetate fibers surrounded by a lofty porous network of charge retaining polymer fibers. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop.Type: GrantFiled: September 14, 2017Date of Patent: March 12, 2019Assignee: Philip Morris USA Inc.Inventors: Szu-Sung Yang, Lixin L. Xue, Jing C. Chang
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Publication number: 20180000151Abstract: A filter rod comprises a core of cellulose acetate fibers surrounded by a lofty porous network of charge retaining polymer fibers. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop.Type: ApplicationFiled: September 14, 2017Publication date: January 4, 2018Applicant: Philip Morris USA Inc.Inventors: Szu Sung Yang, Lixin L. Xue, Jing C. Chang
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Patent number: 9788572Abstract: Provided are a method and apparatus for making a cigarette filter assembly for potentially reducing particle breakthrough. The method includes forming a lofty porous network of charge retaining polymer fibers by mechanical, chemical or thermal bonding of the fibers, wrapping the lofty porous network in a cylindrical or tubular shape with optional mediating filter fibers in a filter paper to form a filter plug while maintaining the lofty structure. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop. The apparatus handles the lofty media with minimal crushing, for example, by spacing apart delivery rolls equipped with protrusions to punch, push, and/or pull the lofty media ahead for high speed operation.Type: GrantFiled: August 19, 2013Date of Patent: October 17, 2017Assignee: Philip Morris USA Inc.Inventors: Szu-Sung Yang, Lixin L. Xue, Jing C. Chang
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Publication number: 20170035104Abstract: A filter rod used in manufacture of a smoking article contains: (a) a rod of filter material, and (b) a plug wrap surrounding the rod of filter material. The overlapping side edges of the plug wrap are secured together with a plug wrap adhesive and the plug wrap adhesive comprises a disintegration accelerating agent. Alternatively or in addition, the plug wrap may contain perforations.Type: ApplicationFiled: October 24, 2016Publication date: February 9, 2017Inventors: Milton E. Parrish, Lixin L. Xue, Jon A. Regrut, Marvyn Steele, Thomas J. Gannon, Wesley Gilliam Sanderson
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Patent number: 9516896Abstract: A filter rod used in manufacture of a smoking article contains: (a) a rod of filter material, and (b) a plug wrap surrounding the rod of filter material. The overlapping side edges of the plug wrap are secured together with a plug wrap adhesive and the plug wrap adhesive comprises a disintegration accelerating agent. Alternatively or in addition, the plug wrap may contain perforations.Type: GrantFiled: March 13, 2014Date of Patent: December 13, 2016Assignee: Philip Morris USA Inc.Inventors: Milton E. Parrish, Lixin L. Xue, Jon A. Regrut, Marvyn Steele, Thomas J. Gannon, Wesley Gilliam Sanderson
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Publication number: 20140261501Abstract: A filter rod used in manufacture of a smoking article contains: (a) a rod of filter material, and (b) a plug wrap surrounding the rod of filter material. The overlapping side edges of the plug wrap are secured together with a plug wrap adhesive and the plug wrap adhesive comprises a disintegration accelerating agent. Alternatively or in addition, the plug wrap may contain perforations.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: Philip Morris USA Inc.Inventors: Milton E. Parrish, Lixin L. Xue, Jon A. Regrut, Marvyn Steele, Thomas J. Gannon, Wesley Gilliam Sanderson
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Patent number: 8707966Abstract: A filter rod used in manufacture of a smoking article contains: (a) a rod of filter material, and (b) a plug wrap surrounding the rod of filter material. The overlapping side edges of the plug wrap are secured together with a plug wrap adhesive and the plug wrap adhesive comprises a disintegration accelerating agent. Alternatively or in addition, the plug wrap may contain perforations.Type: GrantFiled: June 25, 2012Date of Patent: April 29, 2014Assignee: Philip Morris USA Inc.Inventors: Milton E. Parrish, Lixin L. Xue, Jon A. Regrut, Marvyn Steele, Thomas J. Gannon, Wesley Gilliam Sanderson
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Publication number: 20130331247Abstract: Provided are a method and apparatus for making a cigarette filter assembly for potentially reducing particle breakthrough. The method includes forming a lofty porous network of charge retaining polymer fibers by mechanical, chemical or thermal bonding of the fibers, wrapping the lofty porous network in a cylindrical or tubular shape with optional mediating filter fibers in a filter paper to form a filter plug while maintaining the lofty structure. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop. The apparatus handles'the lofty media with minimal crushing, for example, by spacing apart delivery rolls equipped with protrusions to punch, push, and/or pull the lofty media ahead for high speed operation.Type: ApplicationFiled: August 19, 2013Publication date: December 12, 2013Applicant: Philip Morris USA Inc.Inventors: Szu-Sung Yang, Lixin L. Xue, Jing C. Chang
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Patent number: 8534294Abstract: Provided are a method and apparatus for making a cigarette filter assembly for potentially reducing particle breakthrough. The method includes forming a lofty porous network of charge retaining polymer fibers by mechanical, chemical or thermal bonding of the fibers, wrapping the lofty porous network in a cylindrical or tubular shape with optional mediating filter fibers in a filter paper to form a filter plug while maintaining the lofty structure. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop. The apparatus handles the lofty media with minimal crushing, for example, by spacing apart delivery rolls equipped with protrusions to punch, push, and/or pull the lofty media ahead for high speed operation.Type: GrantFiled: October 9, 2009Date of Patent: September 17, 2013Assignee: Philip Morris USA Inc.Inventors: Szu-Sung Yang, Lixin L. Xue, Jing C. Chang
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Publication number: 20120325230Abstract: A filter rod used in manufacture of a smoking article contains: (a) a rod of filter material, and (b) a plug wrap surrounding the rod of filter material. The overlapping side edges of the plug wrap are secured together with a plug wrap adhesive and the plug wrap adhesive comprises a disintegration accelerating agent. Alternatively or in addition, the plug wrap may contain perforations.Type: ApplicationFiled: June 25, 2012Publication date: December 27, 2012Applicant: Philip Morris USA Inc.Inventors: Milton E. Parrish, Lixin L. Xue, Jon A. Regrut, Marvyn Steele, Thomas J. Gannon, Wesley Gilliam Sanderson
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Publication number: 20110083686Abstract: Provided are a method and apparatus for making a cigarette filter assembly for potentially reducing particle breakthrough. The method includes forming a lofty porous network of charge retaining polymer fibers by mechanical, chemical or thermal bonding of the fibers, wrapping the lofty porous network in a cylindrical or tubular shape with optional mediating filter fibers in a filter paper to form a filter plug while maintaining the lofty structure. The charge retaining fibers can be charged to attract and hold particles from such sources as particulate matter from sorbents (preventing break-through), and smoke constituents while having a suitable pressure drop. The apparatus handles the lofty media with minimal crushing, for example, by spacing apart delivery rolls equipped with protrusions to punch, push, and/or pull the lofty media ahead for high speed operation.Type: ApplicationFiled: October 9, 2009Publication date: April 14, 2011Applicant: Philip Morris USA Inc.Inventors: Szu-Sung Yang, Lixin L. Xue, Jing C. Chang
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Patent number: 7878210Abstract: Cellulose acetate fibers can be modified to have physical imperfections and then incorporated into cigarette filter plugs as filtering materials. Cellulose acetate fiber modification can be achieved by etching with a gas phase etchant or a liquid phase etchant comprising hydrogen peroxide. Modification of cellulose acetate fibers may be performed at various stages during the manufacture of cigarette filter plugs. Furthermore, cigarette filter plugs containing modified cellulose acetate fibers can also have spaced apart slits along the length of the cigarette filter plugs.Type: GrantFiled: May 30, 2008Date of Patent: February 1, 2011Assignee: Philip Morris USA Inc.Inventors: Peter Lipowicz, Shalva Gedevanishvili, Lixin L. Xue, Milton E. Parrish, Vicki L. Baliga
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Patent number: 7832412Abstract: A surface-modified adsorbent comprises a reagent on a porous carrier. Preferred porous carriers are adsorbent carbons such as activated carbon, silica gels, aluminas, polyester resins, zeolites or zeolite-like materials, and mixtures thereof. Preferred reagents are 2-hydroxymethylpiperidine (2-HMP) or a 2-HMP analogue. Surface modified adsorbents can be incorporated into cigarettes, preferably in an amount effective to reduce the concentration of one or more constituents of cigarette smoke.Type: GrantFiled: October 19, 2005Date of Patent: November 16, 2010Assignee: Phillip Morris USA Inc.Inventors: Lixin L. Xue, Kent B. Koller
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Publication number: 20100006112Abstract: Provided is a cigarette filter and method of making the filter. The filter includes an adsorbent dispersed within the filter and a downstream plug of randomly-oriented fibers. The randomly-oriented fibers mechanically capture adsorbent particles entrained in tobacco smoke. One or more plugs of axially-oriented fibers may also be located upstream and/or downstream of the adsorbent, and are included in an amount sufficient to adjust the length of the filter.Type: ApplicationFiled: December 18, 2008Publication date: January 14, 2010Applicant: Philip Morris USA, Inc.Inventors: Szu-Sung Yang, Jing C. Chang, Shirley Ha, Michael B. Maher, Lixin L. Xue
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Publication number: 20090032037Abstract: Biodegradable cigarette filters comprise shaped fiber of PHBV. Included among these fiber shapes in cross section are Y, V, C, Triad, 4-DG and JC shapes. The shaped fibers may include micro cavities with adsorbents and/or flavorants in the cavities.Type: ApplicationFiled: July 31, 2008Publication date: February 5, 2009Applicant: Philip Morris USA Inc.Inventors: Lixin L. Xue, Milton E. Parrish, Shalva Gedevanishvili, Szu-Sung Yang
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Publication number: 20090000633Abstract: Cellulose acetate fibers can be modified to have physical imperfections and then incorporated into cigarette filter plugs as filtering materials. Cellulose acetate fiber modification can be achieved by etching with a gas phase etchant or a liquid phase etchant comprising hydrogen peroxide. Modification of cellulose acetate fibers may be performed at various stages during the manufacture of cigarette filter plugs. Furthermore, cigarette filter plugs containing modified cellulose acetate fibers can also have spaced apart slits along the length of the cigarette filter plugs.Type: ApplicationFiled: May 30, 2008Publication date: January 1, 2009Applicant: Philip Morris USA Inc.Inventors: Peter Lipowicz, Shalva Gedevanishvili, Lixin L. Xue, Milton E. Parrish, Vicki L. Baliga
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Patent number: 7316778Abstract: An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditioner is provided to counteract acidic combustion products in lubricating oil in an internal combustion engine. In a preferred embodiment of the invention, the chemically active conditioning agent is provided in a plurality of pellets disposed within the oil filter housing. The pellets may be bonded together to form an integral porous filter element having spaces defined between the pellets thereof. The pellets are made of a mixture including a polymeric binder and the chemically active conditioning agent, in a defined weight ratio and in a narrow range of particle sizes. The chemically active filter element reacts with acids present in the oil to form a product which may be filtered out of the oil. The pellets are made either by a hot extrusion process or by a solvent process.Type: GrantFiled: January 26, 2004Date of Patent: January 8, 2008Assignee: Honeywell International, Inc.Inventors: Ronald Paul Rohrbach, Gordon William Jones, Peter D. Unger, Daniel E. Bause, Lixin L. Xue, Greg Kemenah
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Publication number: 20040154970Abstract: An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditioner is provided to counteract acidic combustion products in lubricating oil in an internal combustion engine. In a preferred embodiment of the invention, the chemically active conditioning agent is provided in a plurality of pellets disposed within the oil filter housing. The pellets may be bonded together to form an integral porous filter element having spaces defined between the pellets thereof. The pellets are made of a mixture including a polymeric binder and the chemically active conditioning agent, in a defined weight ratio and in a narrow range of particle sizes. The chemically active filter element reacts with acids present in the oil to form a product which may be filtered out of the oil. The pellets are made either by a hot extrusion process or by a solvent process.Type: ApplicationFiled: January 26, 2004Publication date: August 12, 2004Inventors: Ronald Paul Rohrbach, Gordon William Jones, Peter D. Unger, Daniel E. Bause, Lixin L. Xue, Greg Kemenah
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Patent number: 6440611Abstract: A battery separator, for placement between conductive plates within a battery, includes a non-woven fiber mat made up of one or more nonwoven fibers, which have a specific cross-sectional shape and exhibit a microcapillary action. The fibers are preferred to be made of a thermoplastic selected from the group consisting of polyolefins, fluoropolymers, polyimides, polysulfones, polyesters, polyamides, and mixtures thereof Each of the fibers includes an outer surface, a hollow internal cavity, and an extended slot. The hollow internal cavity communicates with the outer surface by way of the extended slot. Capillary forces within the fibers are greater than those on the fiber surface, such that a liquid electrolyte readily moves through the interior of the fiber via a wicking action. As a result, the battery separator tends to direct fluid to adjacent battery plates even when an electrolyte level, within the battery, drops below the tops of the plates.Type: GrantFiled: July 20, 2000Date of Patent: August 27, 2002Assignee: Honeywell International Inc.Inventors: Kenneth O. MacFadden, Gordon W. Jones, Lixin L. Xue, Ronald P. Rohrbach, Daniel E. Bause, Peter D. Unger, Gary B. Zulauf
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Patent number: 6379564Abstract: A fluid filter increases the useful life of the filtered fluid by removing contaminants therefrom, and may optionally provide for in-line delivery of additives to the filtered fluid. The filter may be an oil filter, a fuel filter, or other fluid filter. The fluid filter includes a casing which defines a hollow space therein, a mechanically active filter element within that space, and a chemically active filter element also retained within the hollow space proximate the mechanically active filter element. The chemically active filter element includes a nonwoven web made up of a plurality of fibers. Each fiber has a longitudinally extending internal cavity formed therein, and a corresponding longitudinally extending slot opening from that internal cavity to the outer surface of the fiber.Type: GrantFiled: May 8, 2000Date of Patent: April 30, 2002Inventors: Ronald Paul Rohrbach, Gordon William Jones, Peter D. Unger, Daniel E. Bause, Lixin L. Xue, Russell A. Dondero