Patents by Inventor Maurice S. Shapiro

Maurice S. Shapiro 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).

  • Fluid pressure-tensioned slip joint for drilling riser
    Patent number: 4367981
    Abstract: A drilling riser between a subsea wellhead and a floating platform has a slip joint in its upper end. A chamber is formed within the slip joint and supplied fluid pressure to develop a tensioning force on the upper end of the riser as the floating platform cycles vertically under the influence of heave and tidal forces.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: January 11, 1983
    Assignee: Combustion Engineering, Inc.
    Inventor: Maurice S. Shapiro