Patents by Inventor Kevin M. Hartke

Kevin M. Hartke 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).

  • Plastic lumber pallets
    Patent number: 6524426
    Abstract: A plastic pallet assembly is formed from plastic lumber by melting sections of runners and cross members and contacting them to join said runners and said cross members to form a pallet. A machine having an assembly table, cross members for supporting and moving pallet runners in a vertical direction, a support table for a pallet cross member, hot plates moveable in a vertical direction and in a horizontal direction for insertion between the runners and the cross member, and a force bar moveable in a vertical direction for applying a force to the runners, hot plates and cross member.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: February 25, 2003
    Assignee: Edison Welding Institute
    Inventors: Marc A. St. John, Kevin M. Hartke