Patents by Inventor Mark A. Witcher

Mark A. Witcher 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).

  • Conveyor belt with advertisements
    Patent number: 5358094
    Abstract: A conveyor belt of the type used at checkout counters at retail establishments is adapted to the changeable display of advertising material on the visible surface of the conveyor belt. Static cling sheets bearing advertising indicia are adhered to the conveyor belt by electrostatic attraction. As an alternative embodiment, a low friction coating is applied to the visible surface of the static cling sheets. An additional alterative embodiment adds a strip of adhesive material between the conveyor belt and the leading edge of the static cling sheet for releasably securing the leading edge to the conveyor belt.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: October 25, 1994
    Inventors: Joseph J. Molinaro, Mark A. Witcher