Patents by Inventor Norval L. Papke, Jr.

Norval L. Papke, 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).

  • Side-ejecting, double coring tine
    Patent number: 4924944
    Abstract: A side-ejecting double coring tine includes a pair of vertically depending tine members, each having an upper end portion with a generally rectangular cross-section, a central body portion and a lower end portion having a generally circular cross-section, the central body portion having one side open for the ejection of cores therefrom, the rectangular configuration of the upper end portion providing attachment points for a crosspiece which provides additional structural rigidity to the assembly.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: May 15, 1990
    Inventors: Mark L. Cozine, Norval L. Papke, Jr., Loren F. Hansen