Patents by Inventor Geoffrey H. Campbell

Geoffrey H. Campbell 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).

  • Additive manufacturing via direct writing of pure metal and eutectics through latent heat position control
    Patent number: 10189081
    Abstract: An additive manufacturing system for producing metal parts from pure metal or eutectic alloys. The system includes an additive manufacturing print head, a print head heater system, an agitation system, a nozzle in the additive manufacturing print head, a reservoir for melting the metal, and a long heated tube for conditioning the alloy for extrusion in the semi-solid state through a nozzle.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 29, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Andrew J. Pascall, Geoffrey H. Campbell, Eric B. Duoss, Ryan M. Hunt, Joshua Kuntz, Christopher M. Spadaccini
  • ADDITIVE MANUFACTURING VIA DIRECT WRITING OF PURE METAL AND EUTECTICS THROUGH LATENT HEAT POSITION CONTROL
    Publication number: 20170203359
    Abstract: An Additive manufacturing system for producing metal parts from pure metal or eutectic alloys. The system includes a reservoir for melting the metal and a long heated tube for conditioning the alloy for extrusion in the semi-solid state through a nozzle.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 20, 2017
    Inventors: Andrew J. Pascall, Geoffrey H. Campbell, Eric B. Duoss, Ryan M. Hunt, Joshua Kuntz, Christopher M. Spadaccini