Patents by Inventor Robert Willamsson

Robert Willamsson 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).

  • Windlass for offshore structures
    Patent number: 4958805
    Abstract: A windlass for offshore structures comprises power mechanism (18) for rotation of a chain wheel (13) about a horizontal axis (24a) during maneuvering of an anchor chain (14) extending between an anchor and a chain box (15). The chain wheel (13) is rotatably supported in a wheel housing (24) which is pivotable about a vertical shaft (22) below the operating water line (OD) of the structure and on the outside of its planking.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: September 25, 1990
    Inventor: Robert Willamsson