Patents by Inventor William F. Nelson

William F. Nelson 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).

  • Patent number: 4134851
    Abstract: A luminescent glass comprising a host material consisting essentially of 25 to 36 mole percent Al.sub.2 O.sub.3, the balance P.sub.2 O.sub.5, and which is doped with cerium and terbium. The glass is an efficient emitter of visible radiation, predominantly green, when excited by ultraviolet radiation.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: January 16, 1979
    Assignee: GTE Laboratories Incorporated
    Inventors: Richard M. Klein, William F. Nelson, Romano G. Pappalardo, Leslie A. Riseberg
  • Patent number: 4041642
    Abstract: A method for increasing the yield of recoverable sugar from sugar beets is disclosed, wherein the beets are illuminated during at least a portion of the night with light having a wavelength in the range of 560nm to 700nm.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: August 16, 1977
    Assignee: GTE Laboratories Incorporated
    Inventors: Joel I. Krugler, William F. Nelson
  • Patent number: 3942058
    Abstract: An electrodeless lamp is positioned at the end of an inner and outer conductor forming a termination fixture, the inner conductor being shaped such that the arc within the lamp during excitation is isolated from the wall of the lamp envelope. The inner conductor may be formed as a hollow helical element thereby providing both an axial and azimuthal electric field component. Alternatively, the inner conductor may be cup-shaped which has a shielding effect to control the electric field strength at the end of the conductor. The helical or cup element and other features of the inner conductor provide both arc shaping and impedance matching between the complex impedance of the lamp during operation and the output impedance of a high frequency power source which is coupled to the termination fixture.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: March 2, 1976
    Assignee: GTE Laboratories Incorporated
    Inventors: Paul Osborne Haugsjaa, William F. Nelson, Robert James Regan, William Henry McNeill
  • Patent number: 3935119
    Abstract: This disclosure relates to a luminescent device having a uniformly coalesced, transparent, luminescent silica glass target containing an activating amount of at least one selected rare earth oxide. This disclosure further relates to a luminescent process, a composition, and an article of manufacture.
    Type: Grant
    Filed: January 29, 1973
    Date of Patent: January 27, 1976
    Assignee: Owens-Illinois, Inc.
    Inventors: Stephen W. Barber, William F. Nelson