Patents by Inventor Dennis I. Butts

Dennis I. Butts 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).

  • Pull roll assembly for drawing a glass sheet
    Patent number: 7430880
    Abstract: A pull roll assembly is described herein that is used to draw a glass sheet. The pull roll assembly includes a first roll assembly, a second roll assembly and a device (e.g., differential drive, sensor(s)). The device enables one to control the first and/or second roll assemblies based in part on pulling forces (e.g., glass contact normal force and/or required sheet pulling force) associated with a glass sheet while the glass sheet is being drawn between the first and second roll assemblies. A glass manufacturing system and method for using the pull roll assembly are also described herein.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: October 7, 2008
    Assignee: Corning Incorporated
    Inventors: Dennis I. Butts, Glen B. Cook, John J. Costello, III, Hilary T. Godard, John D. Helfinstine, Randy L. Rhoads, G. Clinton Shay
  • Methods for producing glass compositions
    Publication number: 20070199350
    Abstract: The subject matter disclosed herein generally relates to methods for producing glass compositions with a reduced number of defects.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 30, 2007
    Inventors: Dennis I. Butts, Jennifer B. Canary, Glen B. Cook, Philip M. Fenn, J. Terry Fisk, Sandra L. Gray, James P. McCann