Patents by Inventor David E. Grigsby

David E. Grigsby 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: 4905869
    Abstract: A flexible container of bread slices has bellows-like foldable longitudinal sides, having a closed end and an open end. It is located within a somewhat larger casing provided with a closable lid, an open end of the flexible container being effectively sealable by a flexible soft cushion mounted to an inside surface of the lid of the outer casing. A small breathing aperture is provided in the lid, and the cushion allows passage of air or vapors through the breathing aperture to let the stored bread slices breathe with little evaporation from the bread slices. A manually movable platen plate supported within the outer casing biases a closed end of the flexible bread container toward the lid. Individual bread slices are dispensed when the casing lid is opened, with additional bias provided by moving the platen plate forward.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: March 6, 1990
    Inventors: David E. Grigsby, Stanley J. Polidori