Patents by Inventor Karl J. Widiner

Karl J. Widiner 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).

  • Riser tensioner
    Patent number: 4379657
    Abstract: A modular riser tensioner has a frame (10) for mounting on a platform deck with air (16,18) and oil (20,22) accumulators mounted on a mounting frame and connected to cylinders (24-30) also on the mounting frame. A piston (32) located within the cylinders carries a riser tensioning ring (50) for supporting the riser. Pairs of cylinders are located on opposite sides of the riser and connected to an oil accumulator independent of the other cylinders.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: April 12, 1983
    Assignee: Conoco Inc.
    Inventors: Karl J. Widiner, Riley G. Goldsmith