Patents by Inventor Richard H. B. Sangster

Richard H. B. Sangster 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).

  • Stressed caisson retained island
    Patent number: 4118941
    Abstract: Apparatus for constructing an island in a body of water including a plurality of caissons and means for connecting the caissons in an end-to-end configuration to form a ring. Once the caissons have been connected together to form a ring and ballasted to set the caissons upon the bottom of the body of water, sufficient fill material is placed inside the ring of caissons to construct an island in the body of water.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: October 10, 1978
    Assignee: Exxon Production Research Company
    Inventors: John C. Bruce, John F. Davies, Jacobus J. A. DE Jong, Kalju Pullerits, Richard H. B. Sangster