Patents by Inventor Philip M. Fenn

Philip M. Fenn 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).

  • Defect control in the making of sheet glass by the fusion process
    Patent number: 7386999
    Abstract: A molten glass delivery system for use in producing sheet glass by a fusion process is provided. The delivery system includes a first conduit (9) which surrounds a portion of a second conduit (19) with a free surface (21) of molten glass (31) being formed between the two conduits. The first (9) and second (19) conduits are positioned with respect to one another so that the spatial relationship between the exit end (20) of the second conduit (19) and the free surface (21) results in neither substantial numbers of devitrification defects (27, 29) nor substantial numbers of blister defects (35) in finished sheets of devitrification sensitive glass, e.g., high silica LCD glass.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: June 17, 2008
    Assignee: Corning Incorporated
    Inventors: Philip M. Fenn, John T. Fisk, Randy L. Rhoads
  • 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
  • Fusion processes for producing sheet glass
    Publication number: 20030121287
    Abstract: Methods are provided for controlling the formation of defects in sheet glass produced by a fusion process which employs a zircon isopipe. The methods comprise controlling the temperature profile of the glass as it passes over the isopipe so as to minimize both the amount of zirconia which diffuses into the glass at the top of the isopipe and the amount of zircon which comes out of solution at the bottom of the isopipe.
    Type: Application
    Filed: December 20, 2002
    Publication date: July 3, 2003
    Inventors: Paul G. Chalk, Philip M. Fenn, Dawne M. Moffatt-Fairbanks
  • Defect control in the making of sheet glass by the fusion process
    Publication number: 20030110804
    Abstract: A molten glass delivery system for use in producing sheet glass by a fusion process is provided. The delivery system includes a first conduit (9) which surrounds a portion of a second conduit (19) with a free surface (21) of molten glass (31) being formed between the two conduits. The first (9) and second (19) conduits are positioned with respect to one another so that the spatial relationship between the exit end (20) of the second conduit (19) and the free surface (21) results in neither substantial numbers of devitrification defects (27, 29) nor substantial numbers of blister defects (35) in finished sheets of devitrification sensitive glass, e.g., high silica LCD glass.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 19, 2003
    Applicant: CORNING INCORPORATED
    Inventors: Philip M. Fenn, John T. Fisk, Randy L. Rhoads
  • Glass-ceramics suitable for ring laser gyros
    Patent number: 4707458
    Abstract: This invention relates to the production of transparent glass-ceramic bodies exhibiting properties especially suitable for use in ring laser gyros. The inventive products contain .beta.-quartz solid solution as essentially the sole crystal phase and consist essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 64-67 ZnO 0.7-4.2 Al.sub.2 O.sub.3 21-24 TiO.sub.2 2.0-3.25 Li.sub.2 O 2.6-3.7 ZrO.sub.2 1.25-2.5 MgO 0.8-1.5 TiO.sub.2 + ZrO.sub.2 4-5.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: November 17, 1987
    Assignee: Corning Glass Works
    Inventors: Kenneth Chyung, Philip M. Fenn, Mark P. Taylor