Patents by Inventor David Deacon

David Deacon 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).

  • Coreless winding apparatus
    Publication number: 20070152094
    Abstract: Disclosed is an apparatus for forming coreless paper rolls. The invention is an inflatable mandrel that can take on an increased diameter while a paper web is being wound around its outer surface. The mandrel can then be deflated to decrease the diameter sufficiently to allow for the removal of the paper roll.
    Type: Application
    Filed: November 17, 2006
    Publication date: July 5, 2007
    Inventor: David Deacon
  • Constructing well structures for hybrid optical waveguides
    Publication number: 20070041691
    Abstract: A well may be formed for access to an optical waveguide core by a process that results in an L-shaped well. The L-shaped well may then be filled with a polymer. By controlling the size of each portion of well, the occurrence of bubbles within the well and cuts to the core may be reduced.
    Type: Application
    Filed: October 26, 2006
    Publication date: February 22, 2007
    Inventors: Ut Tran, David Deacon, Shing Lee
  • Hitless tunable optical add drop multiplexer with vernier gratings
    Publication number: 20060263008
    Abstract: A set of three gratings may be operated in a vernier loop fashion to select a particular wavelength from a wavelength division multiplexed system. As a result, an optical add/drop multiplexer may be provided that can be tuned to select a desired wavelength. In one embodiment, the tuning may be done thermo-optically.
    Type: Application
    Filed: July 31, 2006
    Publication date: November 23, 2006
    Inventors: David Deacon, Steven Madden, Jorg Hubner
  • Hitless tunable optical add drop multiplexer with vernier gratings
    Publication number: 20050232542
    Abstract: A set of three gratings may be operated in a vernier loop fashion to select a particular wavelength from a wavelength division multiplexed system. As a result, an optical add/drop multiplexer may be provided that can be tuned to select a desired wavelength. In one embodiment, the tuning may be done thermo-optically.
    Type: Application
    Filed: June 13, 2005
    Publication date: October 20, 2005
    Inventors: David Deacon, Steven Madden, Jorg Hubner