Patents Assigned to GrafTech International Holdings Inc.
  • Patent number: 9343784
    Abstract: 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: Grant
    Filed: August 13, 2012
    Date of Patent: May 17, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventors: Ryan J. Wayne, Jonathan Andrew Taylor, Martin David Smalc
  • Publication number: 20160096736
    Abstract: 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: Application
    Filed: October 5, 2015
    Publication date: April 7, 2016
    Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.
    Inventor: Saad Hasan
  • Patent number: 9267745
    Abstract: 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: Grant
    Filed: September 20, 2011
    Date of Patent: February 23, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventor: John L. Southard, II
  • Patent number: 9253827
    Abstract: 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: Grant
    Filed: November 21, 2014
    Date of Patent: February 2, 2016
    Assignee: Graftech International Holdings, Inc.
    Inventors: Philip Dennis Coleman, Michael Frastaci, Gregory E. Murray, Marco Napolitano, Aaron Tomasek, Brian Bowman, Daniel W. Krassowski
  • Patent number: 9253932
    Abstract: 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: Grant
    Filed: July 8, 2015
    Date of Patent: February 2, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventors: Gary D. Shives, Gerald Hoffert, William Varela
  • Patent number: 9253924
    Abstract: 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: Grant
    Filed: July 8, 2015
    Date of Patent: February 2, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventors: Gary D. Shives, Gerald Hoffert, William Varela
  • Patent number: 9250462
    Abstract: 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: Grant
    Filed: July 8, 2015
    Date of Patent: February 2, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventors: Gary D. Shives, William Varela
  • Patent number: 9201262
    Abstract: 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: Grant
    Filed: April 20, 2012
    Date of Patent: December 1, 2015
    Assignee: GrafTech International Holdings Inc.
    Inventors: Bradley E. Reis, Robert Anderson Reynolds, III, Yin Xiong, G M Fazley Elahee, Seung Yong Lee, Gregory P. Kramer
  • Patent number: 9187698
    Abstract: 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: Grant
    Filed: November 11, 2011
    Date of Patent: November 17, 2015
    Assignees: Graftech International Holdings Inc., JPMorgan Chase Bank N.A., as collateral agent
    Inventors: Chong Chen, Philip Dennis Coleman
  • Publication number: 20150316813
    Abstract: 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: Application
    Filed: July 8, 2015
    Publication date: November 5, 2015
    Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.
    Inventors: Gary D. SHIVES, William VARELA
  • Publication number: 20150313038
    Abstract: 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: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.
    Inventors: Gary D. SHIVES, Gerald HOFFERT, William VARELA
  • Publication number: 20150313043
    Abstract: 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: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Applicant: GrafTech International Holdings Inc.
    Inventors: Gary D. SHIVES, Gerald HOFFERT, William VARELA
  • Publication number: 20150230296
    Abstract: 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: Application
    Filed: November 21, 2014
    Publication date: August 13, 2015
    Applicant: GRAFTECH INTERNATIONAL HOLDINGS INC.
    Inventors: Philip Dennis Coleman, Michael Frastaci, Gregory E. Murray, Marco Napolitano, Aaron Tomasek, Brian Bowman, Daniel W. Krassowski
  • Patent number: 9104058
    Abstract: 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: Grant
    Filed: September 9, 2005
    Date of Patent: August 11, 2015
    Assignee: GrafTech International Holdings Inc.
    Inventors: Gary D. Shives, William Varela
  • Patent number: 9087669
    Abstract: 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: Grant
    Filed: September 9, 2005
    Date of Patent: July 21, 2015
    Assignee: GrafTech International Holdings Inc.
    Inventors: Gary D. Shives, Gerald Hoffert, William Varela
  • Patent number: 9081220
    Abstract: 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: Grant
    Filed: June 27, 2005
    Date of Patent: July 14, 2015
    Assignee: GrafTech International Holdings Inc.
    Inventors: Gary D. Shives, Gerald Hoffert, William Varela
  • Patent number: 9046253
    Abstract: 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: Grant
    Filed: January 27, 2012
    Date of Patent: June 2, 2015
    Assignee: GrafTech International Holdings Inc.
    Inventor: James T. Petroski
  • Patent number: 8955983
    Abstract: A handheld device (10), including a projector module (20) which includes a light source having a laser or at least one light emitting diode; a thermal management system which includes a heat collector (30) formed of a material having a thermo-mechanical design constant of at least 10 mm-W/m*K and having a non-planar shape, the heat collector in thermal contact with the light source; a heat spreader (40) having a surface area at least 1.5 times that of the surface area of the heat collector and a thermo-mechanical design constant of at least 10 mm-W/m*K, the heat spreader positioned in thermal contact with the heat collector, wherein thermo-mechanical design constant of a material is defined by thermal conductivity of the material multiplied by its average thickness.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 17, 2015
    Assignee: GrafTech International Holdings Inc.
    Inventors: Bradley E. Reis, Robert A. Reynolds, III, Yin Xiong, Greg P. Kramer, Robert J. Umpleby
  • Patent number: 8923360
    Abstract: 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: Grant
    Filed: April 10, 2013
    Date of Patent: December 30, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Philip Dennis Coleman, Michael Frastaci, Gregory E. Murray, Marco Napolitano, Aaron Tomasek, Brian Bowman, Daniel W. Krassowski
  • Patent number: D749621
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: February 16, 2016
    Assignee: GrafTech International Holdings, Inc.
    Inventors: Ronald E. Gerhan, Wyllys King Ingersoll, III, Frank A. Messineo, Jr.