Patents Assigned to GrafTech International Holdings Inc.
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Publication number: 20160204489Abstract: An electronic device has a heat source and a generally rectangular shape battery proximate the heat source. The battery may have first and second major surfaces. A thermal regulator is in thermal contact with both of the heat source and substantially all of at least the first major surface of the battery. During operation of the device, heat transferred from the heat source to the first major surface via the thermal regulator balances the temperature profile exhibited along the first major surface such that it is substantially uniform.Type: ApplicationFiled: August 13, 2014Publication date: July 14, 2016Applicant: GrafTech International Holdings Inc.Inventors: David G. Rich, Martin D. Smalc
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Patent number: 9368843Abstract: A battery pack includes a plurality of prismatic format batteries in a stacked configuration. Flexible graphite sheet heat spreaders are interposed between adjacent prismatic batteries in the stack. A heat sink extends the length of the stack of prismatic format batteries. But heat spreader major surfaces contact the heat sink and extend into the heat sink by at least 30 percent of the thru-thickness of the heat sink.Type: GrantFiled: May 30, 2013Date of Patent: June 14, 2016Assignee: GrafTech International Holdings, Inc.Inventors: Richard Allen Beyerle, II, Ian Andrew McCallum, Martin David Smalc, Jonathan Andrew Taylor, Ryan J. Wayne
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Patent number: 9343784Abstract: A battery pack thermal management assembly draws heat from prismatic batteries having opposed major surfaces and arranged in a stacked configuration inside a housing. The thermal management assembly includes a plurality of thermal transfer sheets made from sheets of a compressed mass of exfoliated graphite particles. Each thermal transfer sheet is positioned to contact the major surface of at least one of the prismatic batteries. A cover plate has a top face and a bottom face and includes a plurality of apertures through which the plurality of thermal transfer sheets extend. The apertures include at least one curved sidewall and the thermal transfer sheets are bent over the curved sidewall. At least a portion of each of the thermal transfer sheets is secured between a heat sink and the top face.Type: GrantFiled: August 13, 2012Date of Patent: May 17, 2016Assignee: GrafTech International Holdings Inc.Inventors: Ryan J. Wayne, Jonathan Andrew Taylor, Martin David Smalc
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Publication number: 20160096736Abstract: A transparent conductive article which includes one of more graphene sheets, at least one of the sheets having a sheet resistance of less than 100 ?/?. The transparent conductive article includes no more than ten graphene sheets. The transparent conductive article can have a transmission of at least 90%. The one or more sheets can have a transmission of at least 90%. A method of making a transparent conductive sheet includes heat treating a chemical vapor deposition (CVD) grown graphene sheet, the sheet having a width dimension of at least 1 cm, in a non-oxidizing environment to a temperature of at least 2400° C. for a sufficient period of time to have a sheet resistance of less than 100 ?/? and a transmittance of at least 90%. Prior to heat treating, the sheet is disposed on a suspension media, such as flexible graphite, having a chemical and thermal stability such that the suspension media functionally survives the heat treating step.Type: ApplicationFiled: October 5, 2015Publication date: April 7, 2016Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventor: Saad Hasan
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Patent number: 9267745Abstract: A composite heat spreader (10) having an in-plane thermal conductivity of greater than 600 W/m*K and a thickness of greater than 50 microns, the composite heat spreader including a first element (20) which includes at least one sheet of compressed particles of exfoliated graphite having a density of at least about 1.4 grams/cc; and a second element (30) which includes at least one sheet of synthetic graphite having a density of at least 1.8 grams/cc and an in-plane thermal conductivity of at least 700 W/m*K, where the first element and the second element are joined into a composite sheet without the use of adhesives.Type: GrantFiled: September 20, 2011Date of Patent: February 23, 2016Assignee: GrafTech International Holdings Inc.Inventor: John L. Southard, II
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Patent number: 9253932Abstract: An image display device having improved properties, comprising an image display panel, heat dispersion material positioned proximate to the image display panel, an open frame positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the open frame, the image display device exhibits a support factor of less than about 375 mm-W/m° K.Type: GrantFiled: July 8, 2015Date of Patent: February 2, 2016Assignee: GrafTech International Holdings Inc.Inventors: Gary D. Shives, Gerald Hoffert, William Varela
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Patent number: 9253827Abstract: A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion. Alternately, a layer of flexible graphite or plurality of particles of exfoliated graphite may be disposed on the outer radial surface of the electrode body.Type: GrantFiled: November 21, 2014Date of Patent: February 2, 2016Assignee: Graftech International Holdings, Inc.Inventors: Philip Dennis Coleman, Michael Frastaci, Gregory E. Murray, Marco Napolitano, Aaron Tomasek, Brian Bowman, Daniel W. Krassowski
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Patent number: 9253924Abstract: An image display device comprising an image display panel, heat dispersion material positioned proximate to the image display panel, a frame system including a framework positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the framework, where the image display device exhibits a support factor of less than about 150 mm-W/m° K. The framework can be adhesively bonded to the heat dispersion material. The framework can include a height and a width wherein the heat dispersion material substantially spans the height and the width. Additionally, a first cross support can span the framework and a plurality of second electronic components can engage the first cross support. Additionally a second cross support can span the framework wherein at least one of the second electronic components engages the second cross support.Type: GrantFiled: July 8, 2015Date of Patent: February 2, 2016Assignee: GrafTech International Holdings Inc.Inventors: Gary D. Shives, Gerald Hoffert, William Varela
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Patent number: 9250462Abstract: An image display device comprising an image display panel, a frame system including a framework operatively engaging the image display panel and a plurality of electronic components operatively engaging the framework, heat dispersion material operatively engaging the framework and in operative thermal contact with the electronic components, where the frame system exhibits a support factor of less than about 150 mm-W/m° K.Type: GrantFiled: July 8, 2015Date of Patent: February 2, 2016Assignee: GrafTech International Holdings Inc.Inventors: Gary D. Shives, William Varela
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Patent number: 9201262Abstract: A display device includes a heat sink and an LCD panel having peripheral edges. The LCD panel includes a non-activated area extending inwardly a predetermined distance from the peripheral edges. A thermal link is provided, made from an anisotropic graphite material, and is in thermal contact with the heat sink and with at least a portion of the non-activated area of said LCD panel.Type: GrantFiled: April 20, 2012Date of Patent: December 1, 2015Assignee: GrafTech International Holdings Inc.Inventors: Bradley E. Reis, Robert Anderson Reynolds, III, Yin Xiong, G M Fazley Elahee, Seung Yong Lee, Gregory P. Kramer
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Patent number: 9187698Abstract: A method of processing light fraction tar includes pre-heating the light fraction tar before directing it through a reactor. The reactor has a top and a bottom and a surface spanning between said top and said bottom. A film of the light fraction tar flows down the surface under the force of gravity and with heated gas blowing thereon. The portion of the film that reaches the bottom of the reactor has improved properties making it more widely useful for carbon products.Type: GrantFiled: November 11, 2011Date of Patent: November 17, 2015Assignees: Graftech International Holdings Inc., JPMorgan Chase Bank N.A., as collateral agentInventors: Chong Chen, Philip Dennis Coleman
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Publication number: 20150316813Abstract: An image display device comprising an image display panel, a frame system including a framework operatively engaging the image display panel and a plurality of electronic components operatively engaging the framework, heat dispersion material operatively engaging the framework and in operative thermal contact with the electronic components, where the frame system exhibits a support factor of less than about 150 mm-W/m° K.Type: ApplicationFiled: July 8, 2015Publication date: November 5, 2015Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventors: Gary D. SHIVES, William VARELA
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Publication number: 20150313043Abstract: An image display device having improved properties, comprising an image display panel, heat dispersion material positioned proximate to the image display panel, an open frame positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the open frame, the image display device exhibits a support factor of less than about 375 mm-W/m° K.Type: ApplicationFiled: July 8, 2015Publication date: October 29, 2015Applicant: GrafTech International Holdings Inc.Inventors: Gary D. SHIVES, Gerald HOFFERT, William VARELA
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Publication number: 20150313038Abstract: An image display device comprising an image display panel, heat dispersion material positioned proximate to the image display panel, a frame system including a framework positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the framework, where the image display device exhibits a support factor of less than about 150 mm-W/m° K. The framework can be adhesively bonded to the heat dispersion material. The framework can include a height and a width wherein the heat dispersion material substantially spans the height and the width. Additionally, a first cross support can span the framework and a plurality of second electronic components can engage the first cross support. Additionally a second cross support can span the framework wherein at least one of the second electronic components engages the second cross support.Type: ApplicationFiled: July 8, 2015Publication date: October 29, 2015Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventors: Gary D. SHIVES, Gerald HOFFERT, William VARELA
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Publication number: 20150230296Abstract: A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion. Alternately, a layer of flexible graphite or plurality of particles of exfoliated graphite may be disposed on the outer radial surface of the electrode body.Type: ApplicationFiled: November 21, 2014Publication date: August 13, 2015Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.Inventors: Philip Dennis Coleman, Michael Frastaci, Gregory E. Murray, Marco Napolitano, Aaron Tomasek, Brian Bowman, Daniel W. Krassowski
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Patent number: 9104058Abstract: An image display device comprising an image display panel, a frame system including a framework operatively engaging the image display panel and a plurality of electronic components operatively engaging the framework, heat dispersion material operatively engaging the framework and in operative thermal contact with the electronic components, where the frame system exhibits a support factor of less than about 375 mm-W/m° K.Type: GrantFiled: September 9, 2005Date of Patent: August 11, 2015Assignee: GrafTech International Holdings Inc.Inventors: Gary D. Shives, William Varela
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Patent number: 9087669Abstract: An image display device having improved properties, comprising an image display panel, heat dispersion material positioned proximate to the image display panel, an open frame positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the open frame, the image display device exhibits a support factor of less than about 375 mm-W/m° K.Type: GrantFiled: September 9, 2005Date of Patent: July 21, 2015Assignee: GrafTech International Holdings Inc.Inventors: Gary D. Shives, Gerald Hoffert, William Varela
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Patent number: 9081220Abstract: An image display device comprising an image display panel, heat dispersion material positioned proximate to the image display panel, a frame system including a framework positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the framework, where the image display device exhibits a support factor of less than about 375 mm-W/m° K. The framework can be adhesively bonded to the heat dispersion material. The framework can include a height and a width wherein the heat dispersion material substantially spans the height and the width. Additionally, a first cross support can span the framework and a plurality of second electronic components can engage the first cross support. Additionally a second cross support can span the framework wherein at least one of the second electronic components engages the second cross support.Type: GrantFiled: June 27, 2005Date of Patent: July 14, 2015Assignee: GrafTech International Holdings Inc.Inventors: Gary D. Shives, Gerald Hoffert, William Varela
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Patent number: 9046253Abstract: A luminaire includes two housing halves, movable relative to each other between an open and closed configuration. The bottom housing half includes disposed therein a substrate which itself carries at least one LED which transmits light through a window in the bottom housing half. A thermal bridge made of at least one layer of anisotropic thermally conductive graphite is in thermal contact with the substrate and the top housing half when the housing is in the closed configuration, but its disengaged from either the substrate or top housing half when the housing is in the open configuration.Type: GrantFiled: January 27, 2012Date of Patent: June 2, 2015Assignee: GrafTech International Holdings Inc.Inventor: James T. Petroski
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Patent number: D749621Type: GrantFiled: August 6, 2013Date of Patent: February 16, 2016Assignee: GrafTech International Holdings, Inc.Inventors: Ronald E. Gerhan, Wyllys King Ingersoll, III, Frank A. Messineo, Jr.