Patents by Inventor J. Dwight Clanton

J. Dwight Clanton 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).

  • Method and apparatus for perforating material
    Patent number: 5151077
    Abstract: Apparatus for perforating paper including a roll for holding a supply of paper to be perforated, and a roll for taking up paper from the supply roll. The apparatus moves the paper in a forward direction along a reach extending between the supply roll and the take-up roll at a selected speed so that a perforating roller between the supply roll and the take-up roll can perforate the paper in the reach from edge to edge. The perforating roller is rotated so that its teeth travel in the same direction as the paper at the location of engagement with the paper, but the perforating roller is rotated at a rate such that the speed of the teeth is less than the speed of the paper in the forward direction along the reach.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: September 29, 1992
    Assignee: ARK, Inc.
    Inventors: William R. Cole, Jr., Charles H. Sanborn, III, J. Dwight Clanton