Patents by Inventor Robert J. Umpleby

Robert J. Umpleby 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).

  • Thermal management for handheld projectors
    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
  • THERMAL MANAGEMENT FOR HANDHELD PROJECTORS
    Publication number: 20130057835
    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: Application
    Filed: February 28, 2011
    Publication date: March 7, 2013
    Inventors: Bradley E. Reis, Robert A. Reynolds, III, Yin Xiong, Greg P. Kramer, Robert J. Umpleby
  • Blend of ionic (CO)polymer resins and matrix (CO)polymers
    Patent number: 7815986
    Abstract: The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: October 19, 2010
    Assignee: Arkema Inc.
    Inventors: James T. Goldbach, Scott Gaboury, Robert J. Umpleby, Julien Parvole, David A. Mountz
  • Blend of ionic (co)polymer resins and matrix (co)polymers
    Patent number: 7803891
    Abstract: The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: September 28, 2010
    Assignee: Arkema Inc.
    Inventors: James T. Goldbach, Robert J. Umpleby