Patents by Inventor Robert D. Fulcomer

Robert D. Fulcomer 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).

  • Economical roadway marking sheeting matrix
    Patent number: 5374465
    Abstract: An economical roadway marking sheeting matrix that includes hydrated alumina as its main inorganic filler is disclosed. Use of hydrated alumina in the roadway marking sheeting matrix results in reduced mixing and production time, reduction of aging time, lower transportation cost due to lower weight, and lower material cost. In a preferred embodiment, hydrated alumina having a particle size of less that one micron and a GE brightness of 94 or more is incorporated as the main filler system in a roadway marking sheeting matrix. The resulting sheeting matrix may then be fabricated into a road marker by bonding to an upper layer which may include glass beads, and to an adhesive layer for attachment to a road surface.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: December 20, 1994
    Assignee: Plymouth Rubber Company
    Inventor: Robert D. Fulcomer
  • Shielded electrical conductor terminations and methods of making same
    Patent number: 4187389
    Abstract: A stress-relieving material for the surface of an insulated electrical conductor consists essentially of a cold-flowable, low viscosity, corona-resistant elastomer containing from about 350 to about 600 parts by weight per hundred of elastomer of a semiconductor material and up to about 10 parts per hundred of elastomer of processing aids.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: February 5, 1980
    Assignee: Sola Basic Industries, Inc.
    Inventors: George A. Foote, Mason M. Lindamood, Robert D. Fulcomer