Patents by Inventor Robert G. Heavers

Robert G. Heavers 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: 4978566
    Abstract: A reusable, composite coaster for use with a beverage container is characterized by a base substrate of open cell foam material which is heat fusion and pressure bonded to a cover substrate of polymeric fabric material. The open weave of the polymeric fabric material permits moisture to drain into the open cell foam layer, while preventing the buildup of a partial vacuum between the bottom surface of a beverage container and the coaster surface. Moreover, the polymeric fabric cover substrate increases the tear resistance of the assembly, while the open cell foam layer increases the reservoir capacity of the composite assembly.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: December 18, 1990
    Assignee: Robert S. Scheurer
    Inventors: Robert S. Scheurer, Robert G. Heavers