Patents by Inventor Philip D. Coleman

Philip D. Coleman 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).

  • High porosity/low permeability graphite bodies and process for the production thereof
    Patent number: 9546113
    Abstract: A method of forming a graphitic carbon body employs compression and resistance heating of a stock blend of a carbon material and a binder material. During molding of the body, resistance heating is accompanied by application of mechanical pressure to increase the density and carbonization of the resulting preform body. The preform can then be subjected to a graphitization temperature to form a graphite article.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: January 17, 2017
    Assignee: GrafTech INternational Holding Inc.
    Inventors: Chong Chen, Philip D. Coleman, Charles Irsak, Greg E. Murray, James Joseph Pavlisin, Paul Stephen Sirocky
  • Graphite electrode
    Patent number: 9497804
    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: June 29, 2011
    Date of Patent: November 15, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventors: Philip D. Coleman, Greg E. Murray, Marco Napolitano, Aaron Tomasek, Brian Bowman, Daniel W. Krassowski, Michael Frastaci
  • High porosity/low permeability graphite bodies and process for the production thereof
    Patent number: 8721939
    Abstract: A method of forming a graphitic carbon body employs compression and resistance heating of a stock blend of a carbon material and a binder material. During molding of the body, resistance heating is accompanied by application of mechanical pressure to increase the density and carbonization of the resulting preform body. The preform can then be subjected to a graphitization temperature to form a graphite article.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 13, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Chong Chen, Philip D. Coleman, Charles Irsak, Greg E. Murray, James Joseph Pavlisin, Paul Stephen Sirocky
  • High Porosity/Low Permeability Graphite Bodies And Process For The Production Thereof
    Publication number: 20120308472
    Abstract: A method of forming a graphitic carbon body employs compression and resistance heating of a stock blend of a carbon material and a binder material. During molding of the body, resistance heating is accompanied by application of mechanical pressure to increase the density and carbonization of the resulting preform body. The preform can then be subjected to a graphitization temperature to form a graphite article.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 6, 2012
    Inventors: Chong Chen, Philip D. Coleman, Charles Irsak, Greg E. Murray, James Joseph Pavlisin, Paul Stephen Sirocky
  • Optimized Graphite Electrode Pin Configuration
    Publication number: 20110194582
    Abstract: A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 1.0.
    Type: Application
    Filed: June 18, 2010
    Publication date: August 11, 2011
    Inventors: Robert E. Smith, Lionel D. Burton Batty, Philip D. Coleman
  • High Porosity/Low Permeability Graphite Bodies And Process For the Production Thereof
    Publication number: 20110135908
    Abstract: A method of forming a graphitic carbon body employs compression and resistance heating of a stock blend of a carbon material and a binder material. During molding of the body, resistance heating is accompanied by application of mechanical pressure to increase the density and carbonization of the resulting preform body. The preform can then be subjected to a graphitization temperature to form a graphite article.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 9, 2011
    Inventors: Chong Chen, Philip D. Coleman, Charles Irsak, Greg E. Murray, James Joseph Pavlisin, Paul Stephen Sirocky
  • Optimized graphite electrode pin configuration
    Patent number: 7835419
    Abstract: A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: November 16, 2010
    Assignee: GrafTech International Holdings Inc.
    Inventors: Robert E. Smith, Lionel D. Burton Batty, Philip D. Coleman
  • Optimized graphite electrode pin configuration
    Patent number: 7103083
    Abstract: A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 5, 2006
    Assignee: UCAR Carbon Company Inc.
    Inventors: Robert E. Smith, Lionel D. Burton Batty, Philip D. Coleman
  • Self centering electrode joint
    Patent number: 5336015
    Abstract: Threaded nipple for joining two electrode sections is provided with an integral ridge intermediate its threads for centering the electrodes in coaxial alignment.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: August 9, 1994
    Assignee: Ucar Carbon Technology Corporation
    Inventors: James R. Stewart, James A. Klotz, Crescenzo F. Fulgenzi, Philip D. Coleman
  • Method for treating a graphite or carbon body to form a protective coating
    Patent number: 5143749
    Abstract: A process for treating an electrode to form a protective coating comprising applying a precursor of an impregnate material to the surface, controlling the depth of penetration, induction heating the surface under controlled conditions of power, frequency and relative velocity to bring the surface to the treat temperature and quench cooling the surface.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: September 1, 1992
    Assignee: UCAR Carbon Technology Corporation
    Inventors: Francis E. Wise, Philip D. Coleman