Patents by Inventor William M. Cravello

William M. Cravello 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: 6053331
    Abstract: A new type of non-tensioned shaker filter for a shaker machine. The shaker filter is comprised of layers of wire cloth that are bonded together without a rigid backing and are corrugated. Left and right side edges are provided on the left and right sides of the filter, respectively, in order to protect the user from injury from sharp edges and to seal the filter to ledge provided on a non-tensioned means for securing the filter to the shaker. Front and back edges of the filter are provided with front and back lips respectively on a bottom side of the filter in order to protect the user from injury from sharp edges and to seal the filter to the non-tensioned means for securing the filter to the shaker.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: April 25, 2000
    Inventor: William M. Cravello