Patents by Inventor Keith L. Hackworth

Keith L. Hackworth 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: 5679437
    Abstract: A peelable roadway marking tape has a multi-layer structure which provides durability and ease of removal. The marking tape includes a top layer of pigmented vinyl paint with reflective glass beads incorporated therein applied to an intermediate backing layer of either aluminum or vinyl. The backing layer is then laminated to a polyester mesh reinforcement layer, and a pressure-sensitive adhesive hot melt is applied to the under side surface of the mesh for attachment to the roadway surface. In an alternate embodiment of the invention, a layer of high density polyethylene is laminated between the mesh layer and an aluminum backing layer.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: October 21, 1997
    Assignee: Flex-O-Lite, Inc.
    Inventors: Keith L. Hackworth, Jerry E. Moore