Patents by Inventor Michael Allen Bryner
Michael Allen Bryner 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: 8808608Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.Type: GrantFiled: December 27, 2004Date of Patent: August 19, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
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Patent number: 8658548Abstract: One embodiment of the present invention is a nonwoven fabric comprising a support web and a fibrous barrier web, having a hydrohead of at least about 145 cm and a Frazier permeability of at least about 0.3 m3/m2-min.Type: GrantFiled: March 28, 2011Date of Patent: February 25, 2014Assignee: E I du Pont de Nemours and CompanyInventor: Michael Allen Bryner
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Publication number: 20110177741Abstract: One embodiment of the present invention is a nonwoven fabric comprising a support web and a fibrous barrier web, having a hydrohead of at least about 145 cm and a Frazier permeability of at least about 0.3 m3/m2-min.Type: ApplicationFiled: March 28, 2011Publication date: July 21, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: Michael Allen Bryner
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Publication number: 20110171335Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.Type: ApplicationFiled: March 23, 2011Publication date: July 14, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
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Patent number: 7931456Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.Type: GrantFiled: April 18, 2008Date of Patent: April 26, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
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Publication number: 20090298373Abstract: One embodiment of the present invention is a nonwoven fabric comprising a support web and a fibrous barrier web, having a hydrohead of at least about 145 cm and a Frazier permeability of at least about 0.3 m3/m2-min.Type: ApplicationFiled: August 10, 2009Publication date: December 3, 2009Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: MICHAEL ALLEN BRYNER
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Patent number: 7585451Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the spinneret and grounding the electrode such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.Type: GrantFiled: December 27, 2004Date of Patent: September 8, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Michael Allen Bryner, Jack Eugene Armantrout, John Edward Armstrong, Benjamin Scott Johnson
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Patent number: 7582247Abstract: A fiber spinning process which provides an uncharged, electrically conductive polymer-containing liquid stream, issues said liquid stream in combination with a forwarding gas in a direction from at least one spinning nozzle in said spinneret, passes said liquid stream through an ion flow formed by corona discharge to impart electrical charge to the liquid stream, forms fine polymer fibers of said polymer and collects said fine polymer fibers.Type: GrantFiled: August 17, 2005Date of Patent: September 1, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Jack Eugene Armantrout, Michael Allen Bryner, Christel Berta Spiers
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Patent number: 7465159Abstract: A fiber spinning apparatus for charging a polymer-containing liquid stream, having at least one electrically charged, point-electrode positioned adjacent the intended path of said liquid stream and creating an ion flow by corona discharge to impart electrical charge to the polymer-containing liquid stream.Type: GrantFiled: August 17, 2005Date of Patent: December 16, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Jack Eugene Armantrout, Benjamin Scott Johnson, Colby Abraham Rude, Michael Allen Bryner
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Publication number: 20080213417Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.Type: ApplicationFiled: April 18, 2008Publication date: September 4, 2008Inventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
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Patent number: 7235122Abstract: Filtration media are disclosed for use in high efficiency air filters for filtering particulate matter in air. The media make use of at least one layer of fibers having a diameter less than 1000 nanometers sandwiched between two scrim layers to achieve high efficiency particulate air (HEPA) filtration performance at relatively low pressure drops.Type: GrantFiled: November 8, 2004Date of Patent: June 26, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Michael Allen Bryner, Joseph Brian Hovanec, David C. Jones, Hyun Sung Lim, B. Lynne Wiseman
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Publication number: 20040116028Abstract: One embodiment of the present invention is a nonwoven fabric comprising a support web and a fibrous barrier web, having a hydrohead of at least about 145 cm and a Frazier permeability of at least about 0.3 m3/m2-min.Type: ApplicationFiled: September 17, 2003Publication date: June 17, 2004Inventor: Michael Allen Bryner
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Patent number: 6355333Abstract: A construction membrane that resists liquid and air penetration, is moisture vapor permeable, and has integral drainage channels is provided. An exterior wall construction incorporating such barrier sheet material is also provided. The wall construction may be faced with stucco, siding, brick or stone. A method for bonding and texturing the construction membrane is also provided.Type: GrantFiled: June 9, 1999Date of Patent: March 12, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: James Ross Waggoner, Mieczyclaw Stachnik, Theresa A. Weston, Michael Allen Bryner
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Patent number: 6004672Abstract: This invention is directed to a flash spun plexifilamentary strand material comprising blends of thermoplastic material including polyethylene and polypropylene, the resulting strand has a unique morphology comprising a three dimensional integral plexus of semicrystalline fibrous elements.Type: GrantFiled: June 30, 1998Date of Patent: December 21, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Hyunkook Shin, James Ross Waggoner, Sam Louis Samuels, Michael Allen Bryner, Rudolph Francis Janis
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Patent number: 5788993Abstract: A flash spin pack for a flash-spinning apparatus is provided in which the pack includes a spin mixture inlet, that communicates with a spin mixture passage, that discharges through a spinning orifice that opens into a slot defined by two opposing faces of the body of the spin pack. The slot is 0.25 mm to 7 mm wide proximate the spinning orifice outlet, 0.25 mm to 10 mm at the slot outlet, and the distance from the orifice outlet to the slot outlet is 1.5 mm to 40 mm. The spin pack may have five or more spinning orifices that each discharge into a different slot so configured.Type: GrantFiled: June 6, 1997Date of Patent: August 4, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Michael Allen Bryner, Don M. Coates, Michael Charles Davis, Tom Edward Estep, Ralph A. Franke, Larry Ray Marshall, Subhra K. Nath, Charles Wesley Starke, Sr.
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Patent number: 5731011Abstract: An apparatus for adjusting the path that a web formed by striking a contoured surface baffle will take as it descends to a collection surface, in which the baffle is mounted on a pivot plate which will pivot and cause the web to leave the contoured surface baffle at the desired angle.Type: GrantFiled: January 31, 1997Date of Patent: March 24, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Carl Agreen, Wayne Edward Billings, Robert Anthony Marin, Jean Francois Woll, Ottmar Niederpruem, Michael Allen Bryner