Patents by Inventor Julius Crane

Julius Crane 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).

  • Reciprocating tamper for a concrete mold press
    Patent number: 4445839
    Abstract: A concrete mold press for a concrete molding machine includes a reciprocating tamper operatively movable to an operative position in pressing contact with the concrete in a mold. The tamper includes a tamping plate mounted to vertically oscillate in response to the press head vibrations to repeatedly strike the press head to provide a tamping force which compacts the concrete in the mold.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: May 1, 1984
    Assignee: Metalfab, Inc.
    Inventor: Julius Crane