Patents by Inventor Richard J. Tolliver

Richard J. Tolliver 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).

  • Cutting stretched interplayer sheeting
    Patent number: 4201351
    Abstract: This invention involves cutting a series of individual sheets of thermoplastic interlayer material into a selected trapezoidal shape of adjustable length and shape by winding a continuous ribbon of said material on an adjustable mandrel and cutting the continuous ribbon while mounted on the mandrel properly adjusted. The adjustable mandrel of this invention comprises means for independently adjusting the diameter or circumference of its opposite axial end portions so as to ensure that the plies of said material wound onto said mandrel are cut into trapezoidal shapes of the proper length and outline shape by one or more simple cuts parallel to the axis on which the mandrel is mounted for rotation.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: May 6, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Richard J. Tolliver
  • Cutting stretched interlayer sheeting
    Patent number: 4174076
    Abstract: This invention involves cutting a series of individual sheets of thermoplastic interlayer material into a selected trapezoidal shape of adjustable length and shape by winding a continuous ribbon of said material on an adjustable mandrel and cutting the continuous ribbon while mounted on the mandrel properly adjusted. The adjustable mandrel of this invention comprises means for independently adjusting the diameter or circumference of its opposite axial end portions so as to ensure that the plies of said material wound onto said mandrel are cut into trapezoidal shapes of the proper length and outline shape by one or more simple cuts parallel to the axis on which the mandrel is mounted for rotation.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: November 13, 1979
    Assignee: PPG Industries, Inc.
    Inventor: Richard J. Tolliver