Patents by Inventor Kevin R. Merritt

Kevin R. Merritt 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).

  • Paperboard for manufacturing single-layer paperboard tube-forming plies
    Patent number: 5804284
    Abstract: The invention provides a continuous paperboard sheet adapted to be slit longitudinally into a plurality of continuous paperboard plies, and to improved paperboard plies for forming single-layer, paperboard tubes. The paperboard sheet has a substantially constant width and includes a plurality of thick longitudinal sections and a plurality of thin longitudinal sections. The thick and thin sections are arranged in alternating relation across the width of the paperboard sheet. The sheet is slit longitudinally along the thin sections to provide a plurality of tube-forming paperboard plies.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: September 8, 1998
    Assignee: Sonoco Products Company, Inc.
    Inventors: George E. Lennon, Jerry S. Hall, Kevin R. Merritt, Henry L. King
  • Paperboard for manufacturing single-layer paperboard tube-forming plies
    Patent number: 5573638
    Abstract: The invention provides a continuous paperboard sheet adapted to be slit longitudinally into a plurality of continuous paperboard plies, and to improved paperboard plies for forming single-layer, paperboard tubes. The paperboard sheet has a substantially constant width and includes a plurality of thick longitudinal sections and a plurality of thin longitudinal sections. The thick and thin sections are arranged in alternating relation across the width of the paperboard sheet. The sheet is slit longitudinally along the thin sections to provide a plurality of tube-forming paperboard plies.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: November 12, 1996
    Assignee: Sonoco Products Company
    Inventors: George E. Lennon, Jerry S. Hall, Kevin R. Merritt, Henry L. King