Patents by Inventor Carl A. Griese, Jr.

Carl A. Griese, Jr. 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).

  • Replaceable liner for a grain elevator discharge spout
    Patent number: 4645055
    Abstract: The discharge spout of a grain elevator is provided with an abrasion resistant liner formed of polyurethane. The liner is formed into cylindrical configuration from a rectangular blade of material and may be readily inserted into the discharge spout and rotated relative thereto to permit even wearing of the liner. The abrasion resistant liner may be readily removed from the discharge spout and replaced with another liner to thereby eliminate any wear to the inner surface of the discharge spout.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: February 24, 1987
    Inventors: Edward T. Griese, Carl A. Griese, Jr., Donald A. Griese