Patents by Inventor Dean J. Hirschfield

Dean J. Hirschfield 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: 4378876
    Abstract: A holder of molded plastic material for retaining a coin or medallion in centrally spaced relation from the walls of a square perimetric frame by means of four equally spaced slightly curved resilient projections extending inwardly from the walls. The projections are molded integrally with the walls of rectangular section, and are of the same height as the latter. The thickness of the projections diminish from their junctions with the walls, and the rectangular cross-sections thereof diminish correspondingly towards their ends. The resulting flexibility of the projections makes possible the pressing thereof against the periphery of a small coin or medallion. The lengths of the projections may be varied so that when they are short, the outer ends thereof are pressed against the peripheral wall of a coin at uniformly displaced points. A holder with longer projections permits the retention of a coin of smaller size by the yieldable convex edges of the projections against spaced points of the periphery.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: April 5, 1983
    Inventors: Bela G. Szabo, Dean J. Hirschfield
  • Patent number: 4320831
    Abstract: A container of molded plastic material for storing, shipping or displaying precious gems, coins or other small valuable articles which require special handling. The container is comprised of three separate components,--a base providing a seat or storage receptacle for one or more of the articles, a rockable cover therefor, and a latch for locking the cover in its closed position. The cover may be fused to the base in the latter position if an additional factor of safety is desired to prevent tampering with the articles in the course of transit. A portion of the base may be used for bearing indicia and advertising matter relevant to the articles.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: March 23, 1982
    Inventors: Bela G. Szabo, Dean J. Hirschfield