Patents by Inventor Stephen Chesters
Stephen Chesters 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: 20230279591Abstract: Nonwoven fabrics having a plurality of fibers that are bonded to each other to form a coherent web, wherein the fibers comprise a blend of a polylactic acid (PLA) and at least one secondary alkane sulfonate are provided. The nonwoven fabrics exhibit increased tensile strengths, elongation and toughness.Type: ApplicationFiled: May 12, 2023Publication date: September 7, 2023Applicants: Fitesa Germany GmbH, Fitesa Simpsonville, Inc.Inventors: Elena Novarino, Gary Drews, Jason Hamilton, Stephen Chester, Alfredo Izzo, David D. Newkirk
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Patent number: 11674248Abstract: Nonwoven fabrics having a plurality of fibers that are bonded to each other to form a coherent web, wherein the fibers comprise a blend of a polylactic acid (PLA) and at least one secondary alkane sulfonate are provided. The nonwoven fabrics exhibit increased tensile strengths, elongation and toughness.Type: GrantFiled: January 13, 2022Date of Patent: June 13, 2023Assignees: Fitesa Germany GmbH, Fitesa Simpsonville, Inc.Inventors: Elena Novarino, Gary Drews, Jason Hamilton, Stephen Chester, Alfredo Izzo, David D. Newkirk
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Patent number: 11623427Abstract: A method of preparing a cleaning wipe having a high sustainable polymer content is provided. The cleaning wipe includes a fibrous layer having fibers of a melt spinnable sustainable polymer; and an abrasive layer having meltblown fibers of a melt spinnable sustainable polymer. The abrasive layer defining an outer surface of the cleaning wipe, and includes a plurality of abrasive structures formed thereon in which the abrasive structures are formed from conglomerated fibers, meltblown shot, fibers having average diameters greater than 4 micrometers and fibers having a tortuous geometry. The melt spinnable sustainable polymer content of the cleaning wipe is at least 50 weight % by weight of the cleaning wipe. A method of preparing the cleaning wipe is also provided.Type: GrantFiled: June 28, 2022Date of Patent: April 11, 2023Assignees: FITESA GERMANY GMBH, FITESA SIMPSONVILLE, INC.Inventors: Gary Drews, Elena Novarino, Stefanie Streich, Jason Hamilton, Stephen Chester, Alfredo Izzo, David Newkirk
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Publication number: 20220332086Abstract: A method of preparing a cleaning wipe having a high sustainable polymer content is provided. The cleaning wipe includes a fibrous layer having fibers of a melt spinnable sustainable polymer; and an abrasive layer having meltblown fibers of a melt spinnable sustainable polymer. The abrasive layer defining an outer surface of the cleaning wipe, and includes a plurality of abrasive structures formed thereon in which the abrasive structures are formed from conglomerated fibers, meltblown shot, fibers having average diameters greater than 4 micrometers and fibers having a tortuous geometry. The melt spinnable sustainable polymer content of the cleaning wipe is at least 50 weight % by weight of the cleaning wipe. A method of preparing the cleaning wipe is also provided.Type: ApplicationFiled: June 28, 2022Publication date: October 20, 2022Applicants: FITESA GERMANY GMBH, FITESA SIMPSONVILLE, INC.Inventors: Gary DREWS, Elena Novarino, Stefanie Streich, Jason Hamilton, Stephen Chester, Alfredo Izzo, David Newkirk
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Patent number: 11441251Abstract: Nonwoven fabrics having a plurality of fibers that are bonded to each other to form a coherent web, wherein the fibers comprise a blend of a polylactic acid (PLA) and at least one secondary alkane sulfonate are provided. The nonwoven fabrics exhibit increased tensile strengths, elongation and toughness.Type: GrantFiled: August 14, 2017Date of Patent: September 13, 2022Assignees: Fitesa Germany GmbH, Fitesa Simpsonville, Inc.Inventors: Elena Novarino, Gary Drews, Jason Hamilton, Stephen Chester, Alfredo Izzo, David D. Newkirk
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Patent number: 11420414Abstract: A cleaning wipe having a high sustainable polymer content is provided. The cleaning wipe includes a fibrous layer having fibers of a melt spinnable sustainable polymer; and an abrasive layer having meltblown fibers of a melt spinnable sustainable polymer. The abrasive layer defining an outer surface of the cleaning wipe, and includes a plurality of abrasive structures formed thereon in which the abrasive structures are formed from conglomerated fibers, meltblown shot, fibers having average diameters greater than 4 micrometers and fibers having a tortuous geometry. The melt spinnable sustainable polymer content of the cleaning wipe is at least 50 weight % by weight of the cleaning wipe. A method of preparing the cleaning wipe is also provided.Type: GrantFiled: March 1, 2018Date of Patent: August 23, 2022Assignees: Fitesa Germany GmbH, Fitesa Simpsonville, Inc.Inventors: Gary Drews, Elena Novarino, Stephanie Streich, Jason Hamilton, Stephen Chester, Alfredo Izzo, David Newkirk
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Publication number: 20220136156Abstract: Nonwoven fabrics having a plurality of fibers that are bonded to each other to form a coherent web, wherein the fibers comprise a blend of a polylactic acid (PLA) and at least one secondary alkane sulfonate are provided. The nonwoven fabrics exhibit increased tensile strengths, elongation and toughness.Type: ApplicationFiled: January 13, 2022Publication date: May 5, 2022Applicants: Fitesa Germany GmbH, Fitesa Simpsonville, Inc.Inventors: Elena Novarino, Gary Drews, Jason Hamilton, Stephen Chester, Alfredo Izzo, David D. Newkirk
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Patent number: 10993538Abstract: A seat apparatus includes a base having a central ridge structure on the top of the base. The central ridge structure is round on the top and slopes downward from front to back. A secondary ridge structure may be included on top of the central ridge structure. Using the seat apparatus, a person with a hemorrhoid condition can sit on the seat apparatus, and using their own body weight, create pressure between the affected area and the central ridge structure. The pressure bias the hemorrhoid to be repositioned in the user's body, relieving discomfort and, with long term use, can improve sphincter control to better prevent hemorrhoid conditions.Type: GrantFiled: August 13, 2020Date of Patent: May 4, 2021Inventor: Stephen Chester Fenner
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Publication number: 20200070473Abstract: A cleaning wipe having a high sustainable polymer content is provided. The cleaning wipe includes a fibrous layer having fibers of a melt spinnable sustainable polymer; and an abrasive layer having meltblown fibers of a melt spinnable sustainable polymer. The abrasive layer defining an outer surface of the cleaning wipe, and includes a plurality of abrasive structures formed thereon in which the abrasive structures are formed from conglomerated fibers, meltblown shot, fibers having average diameters greater than 4 micrometers and fibers having a tortuous geometry. The melt spinnable sustainable polymer content of the cleaning wipe is at least 50 weight % by weight of the cleaning wipe. A method of preparing the cleaning wipe is also provided.Type: ApplicationFiled: March 1, 2018Publication date: March 5, 2020Inventors: Gary Drews, Elena Novarino, Stephanie Streich, Jason Hamilton, Stephen Chester, Alfredo Izzo, David Newkirk
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Publication number: 20180051404Abstract: Nonwoven fabrics having a plurality of fibers that are bonded to each other to form a coherent web, wherein the fibers comprise a blend of a polylactic acid (PLA) and at least one secondary alkane sulfonate are provided. The nonwoven fabrics exhibit increased tensile strengths, elongation and toughness.Type: ApplicationFiled: August 14, 2017Publication date: February 22, 2018Inventors: Elena Novarino, Gary Drews, Jason Hamilton, Stephen Chester, Alfredo Izzo, David D. Newkirk
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Publication number: 20140238936Abstract: A method of cleaning a reverse osmosis or nanofiltration membrane includes supplying pulses of bubbles to the membrane. A venturi device for supplying bubbles to improve the cleaning of reverse osmosis or nanofiltration membranes includes a venturi having a liquid inlet and an air inlet provided at a choke point of the venturi, as well as an outlet. The air inlet is provided with a plurality of tubes. A reverse osmosis plant includes a membrane pressure vessel having a fluid inlet, a permeate outlet, a concentrate outlet and an in place cleaning tank connected in line with the fluid inlet. A venturi valve is connected in-line between the cleaning tank and the fluid inlet.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Applicant: Genesys International LimitedInventors: Maqsood Fazel, Stephen Chesters
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Patent number: 8468840Abstract: Methods, apparatuses and systems are disclosed for supplying gas from a multi-container Bulk Specialty Gases Supply System wherein at least one process parameter is automatically monitored to prevent over-filling of at least a first and second container without operator intervention.Type: GrantFiled: July 24, 2008Date of Patent: June 25, 2013Assignee: Praxair TechnologyInventors: Kenneth Leroy Burgers, Stephen Chesters, Justin Cole Germond, Edward Pryor, Jack W. Erb, Keith Randall Pace, Brian Michael Meredith
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Publication number: 20100018249Abstract: Methods, apparatuses and systems are disclosed for supplying gas from a multi-container BSGS system wherein at least one process parameter is automatically monitored to prevent over-filling of at least a first and second container without operator intervention.Type: ApplicationFiled: July 24, 2008Publication date: January 28, 2010Inventors: Kenneth Leroy Burgers, Stephen Chesters, Justin Cole Germond, Edward Pryor, Jack W. Erb, Keith Randall Pace, Brian Michael Meredith
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Publication number: 20090211525Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: February 12, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090214778Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: February 12, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090214777Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: January 26, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090214779Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: February 12, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20060020250Abstract: An absorbent article is provided comprising a topsheet, a backsheet, and an absorbent core positioned between the topsheet and the backsheet, wherein the absorbent core comprises particles of superabsorbent polymer. An acquisition layer is positioned between the topsheet and the absorbent core for receiving and distributing fluid insults for absorption by the absorbent core. A temporary storage layer is positioned between the acquisition layer and the absorbent core, the temporary storage layer comprising a nonwoven fabric having a capacity to receive and temporarily hold the fluid insults in proximity to the absorbent core for a sufficient time for the fluid insults to be absorbed by the superabsorbent polymer in the absorbent core. In one advantageous embodiment, the acquisition layer has a calculated average pore size greater than 100 ?m and the temporary storage layer has a calculated average pore size less than 100 ?m.Type: ApplicationFiled: May 25, 2005Publication date: January 26, 2006Inventors: Stephen Chester, Samuel Baer
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Patent number: 6772781Abstract: Provided are apparatuses and methods for mixing gases. The apparatuses are suitable for use in the manufacture of an electronic device. The apparatuses include a gas mixing manifold. A first, bulk gas source is connected to introduce a flow of a first gas to the manifold. A second gas source is connected to introduce a flow of a second gas to the manifold. The first and second gases are mixed in the manifold, thereby forming a gas mixture. A conduit is connected to one or more point of use for introducing a flow of the gas mixture thereto. The present invention is particularly applicable in the semiconductor manufacturing industry.Type: GrantFiled: January 19, 2001Date of Patent: August 10, 2004Assignee: Air Liquide America, L.P.Inventors: Dean L. Doty, Yan Xu, Stephen Chesters, Ben R. Hall, Roger Q. Petton, Thomas P. Ross, Charles A. White, Reginald Wynne
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Patent number: D827312Type: GrantFiled: August 10, 2017Date of Patent: September 4, 2018Assignee: FITESA SIMPSONVILLE, INC.Inventor: Stephen Chester