Patents by Inventor Roger Curtis Wicks
Roger Curtis Wicks 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: 11788234Abstract: An aramid paper suitable for use as electrical insulation comprising a first outer layer and a second outer layer, each of which comprising 70 to 30 weight percent aramid floc and 30 to 70 weight percent aramid fibrids, and each of which being free of mica and having a first face and a second face; an inner layer comprising 50 to 70 weight percent aramid material and 30 to 50 weight percent mica and having a first face and a second face; wherein the first face of the first outer layer is a first outer face of the aramid paper, and the second face of the first outer layer is coextensive with and bound face-to-face with the first face of the inner layer solely by fibrids in the first outer layer and the inner layer; and wherein the first face of the second outer layer is coextensive with and bound face-to-face with the second face of the inner layer solely by fibrids in the second outer layer and the inner layer, and the second face of the second outer layer is a second outer face of the aramid paper; the aramiType: GrantFiled: July 18, 2022Date of Patent: October 17, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Chris Dembrosky, Roger Curtis Wicks
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Publication number: 20230052674Abstract: An aramid paper suitable for use as electrical insulation comprising a first outer layer and a second outer layer, each of which comprising 70 to 30 weight percent aramid floc and 30 to 70 weight percent aramid fibrids, and each of which being free of mica and having a first face and a second face; an inner layer comprising 50 to 70 weight percent aramid material and 30 to 50 weight percent mica and having a first face and a second face; wherein the first face of the first outer layer is a first outer face of the aramid paper, and the second face of the first outer layer is coextensive with and bound face-to-face with the first face of the inner layer solely by fibrids in the first outer layer and the inner layer; and wherein the first face of the second outer layer is coextensive with and bound face-to-face with the second face of the inner layer solely by fibrids in the second outer layer and the inner layer, and the second face of the second outer layer is a second outer face of the aramid paper; the aramiType: ApplicationFiled: July 18, 2022Publication date: February 16, 2023Inventors: Chris DEMBROSKY, ROGER CURTIS WICKS
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Patent number: 9844928Abstract: Laminate structure suitable as electrical insulation comprising a mica-aramid layer of 35-55 wt % mica, 20-60 wt % binder, and 5 to 25 wt % aramid floc, the mica distributed uniformly in the mica-aramid layer; and an aramid layer comprising 35-75 wt % binder and 25-65 wt % aramid floc, the aramid layer being essentially free of mica; wherein the mica-aramid layer has a limiting oxygen index (LOI) of 37% or greater, and the aramid layer has a LOI of 30% or less and having a tensile strength and elongation greater than the mica-aramid layer; and the mica-aramid layer being homogeneously and continuously bound to the aramid layer; the laminate structure having a thickness of at least 0.10 mm, a LOI greater than 32%, and when exposed to a flame to determine LOI, the laminate burns as one piece.Type: GrantFiled: June 1, 2015Date of Patent: December 19, 2017Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Jean Claude Duart, Serge Rebouillat, Radoslaw Szewczyk, Roger Curtis Wicks
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Publication number: 20150360452Abstract: Laminate structure suitable as electrical insulation comprising a mica-aramid layer of 35-55 wt % mica, 20-60 wt % binder, and 5 to 25 wt % aramid floc, the mica distributed uniformly in the mica-aramid layer; and an aramid layer comprising 35-75 wt % binder and 25-65 wt % aramid floc, the aramid layer being essentially free of mica; wherein the mica-aramid layer has a limiting oxygen index (LOI) of 37% or greater, and the aramid layer has a LOI of 30% or less and having a tensile strength and elongation greater than the mica-aramid layer; and the mica-aramid layer being homogeneously and continuously bound to the aramid layer; the laminate structure having a thickness of at least 0.10 mm, a LOI greater than 32%, and when exposed to a flame to determine LOI, the laminate burns as one piece.Type: ApplicationFiled: June 1, 2015Publication date: December 17, 2015Inventors: JEAN CLAUDE DUART, SERGE REBOUILLAT, RADOSLAW SZEWCZYK, ROGER CURTIS WICKS
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Publication number: 20120312366Abstract: A back-sheet for a photovoltaic module comprises a fire resistant sheet adhered to a fluoropolymer film. The fire resistant sheet comprises 40 to 100 weight percent of crystallized mineral silicate platelets based on the weight of the fire resistant sheet, and the fire resistant sheet has an average thickness of at least 75 microns, and more preferably at least 100 microns. The crystallized mineral silicate platelets of the fire resistant sheet are selected from the group of mica, vermiculite, clay, talc, and combinations thereof. A photovoltaic module made with such a back-sheet is also disclosed.Type: ApplicationFiled: December 9, 2011Publication date: December 13, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Adam Ben Starry, Brian C. Auman, Carl Robert Haeger, Roger Curtis Wicks
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Patent number: 8039095Abstract: This invention relates to a laminate electrical insulation part for an electrical device comprising a thermoplastic film positioned between, adjacent to, and attached to two nonwoven sheets. Each of the nonwoven sheets consists of multicomponent polymeric fibers comprising at least a first polymer and a second polymer, the first polymer having a melting point that is at least 15 degrees Celsius lower than both the melting point of the second polymer and the melting point of the thermoplastic film, and the film is attached to the nonwoven sheets by the first polymer in the nonwoven sheets. The electrical insulation part has a breakdown voltage of at least 3 kilovolts, and a surface having a dynamic frictional coefficient of 0.25 or less. This invention also relates to an electrical device component comprising the laminate electrical insulation part.Type: GrantFiled: May 18, 2007Date of Patent: October 18, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Peter J. Hollberg, Mikhail R. Levit, Brian P. Little, Xun Ma, Brian Keith Trask, Roger Curtis Wicks, Bruce A. Yost
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Publication number: 20110012474Abstract: This invention relates to an improved process for removing conductors and electrical insulation parts from electrical device components so that these devices can be refurbished with new insulation and conductors. This invention also relates to an electrical device component having an electrical winding support, a laminate electrical insulation part, an electrical conductor, and an encapsulating resin, that has a special laminate electrical insulation part that allows more efficient and environmentally friendly refurbishing.Type: ApplicationFiled: September 24, 2010Publication date: January 20, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Mikhail R. Levit, Roger Curtis Wicks
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Publication number: 20080284555Abstract: This invention relates to an improved process for removing conductors and electrical insulation parts from electrical device components so that these devices can be refurbished with new insulation and conductors. This invention also relates to an electrical device component having an electrical winding support, a laminate electrical insulation part, an electrical conductor, and an encapsulating resin, that has a special laminate electrical insulation part that allows more efficient and environmentally friendly refurbishing.Type: ApplicationFiled: May 18, 2007Publication date: November 20, 2008Inventors: Mikhail R. Levit, Roger Curtis Wicks
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Publication number: 20080286591Abstract: This invention relates to a laminate electrical insulation part for an electrical device comprising a thermoplastic film positioned between, adjacent to, and attached to two nonwoven sheets. Each of the nonwoven sheets consists of multicomponent polymeric fibers comprising at least a first polymer and a second polymer, the first polymer having a melting point that is at least 15 degrees Celsius lower than both the melting point of the second polymer and the melting point of the thermoplastic film, and the film is attached to the nonwoven sheets by the first polymer in the nonwoven sheets. The electrical insulation part has a breakdown voltage of at least 3 kilovolts, and a surface having a dynamic frictional coefficient of 0.25 or less. This invention also relates to an electrical device component comprising the laminate electrical insulation part.Type: ApplicationFiled: May 18, 2007Publication date: November 20, 2008Inventors: Peter J. Hollberg, Mikhall R. Levit, Brian P. Little, Xun Ma, Brian Keith Trask, Roger Curtis Wicks