Patents by Inventor David C. Hayes

David C. Hayes 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).

  • Fiber architecture for a composite pole
    Patent number: 7228672
    Abstract: A fiber architecture in the form of an elongate beam having a hollow polygonal cross section with a plurality of substantially flat exterior sides and a corner between each pair of adjacent exterior sides. The cross section is substantially thicker adjacent each corner. The fiber architecture includes a first fabric layer extending around the beam, a layer of circumferential longitudinal rovings extending around the beam adjacent the outside of the first fabric layer, corner longitudinal rovings coterminous and integral with the outside of the circumferential rovings adjacent each corner, and a second fabric layer extending around the beam adjacent the outside of the corner rovings and adjacent the outside of the circumferential rovings not covered by corner rovings. The fabric architecture may be impregnated with resin to form a composite pole that may be used as a utility pole.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: June 12, 2007
    Assignee: Powertrusion International, Inc.
    Inventors: David C. Hayes, Daniel J. Lonergan
  • Fiber architecture for a composite pole
    Publication number: 20030196391
    Abstract: A fiber architecture in the form of an elongate beam having a hollow polygonal cross section with a plurality of substantially flat exterior sides and a corner between each pair of adjacent exterior sides. The cross section is substantially thicker adjacent each corner. The fiber architecture includes a first fabric layer extending around the beam, a layer of circumferential longitudinal rovings extending around the beam adjacent the outside of the first fabric layer, corner longitudinal rovings coterminous and integral with the outside of the circumferential rovings adjacent each corner, and a second fabric layer extending around the beam adjacent the outside of the corner rovings and adjacent the outside of the circumferential rovings not covered by corner rovings. The fabric architecture may be impregnated with resin to form a composite pole that may be used as a utility pole.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 23, 2003
    Inventors: David C. Hayes, Daniel J. Lonergan