Patents by Inventor Paulus T. M. Holtslag

Paulus T. M. Holtslag 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).

  • Offshore production riser with flexible connector
    Patent number: 4273470
    Abstract: A central pipe riser support structure is connected to an underwater offshore base member by means of a gimbal joint. Vertical flow lines run parallel to the central riser and are supported by support means connected thereto. The lowermost support of each flow line is formed by a guide sleeve allowing at most a 3.degree. deviation between the central axis of the guide sleeve and the central axis of the flow line.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: June 16, 1981
    Assignee: Shell Oil Company
    Inventors: Everhard C. Blomsma, Paulus T. M. Holtslag