Patents by Inventor Dag Aavitsland

Dag Aavitsland 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).

  • Patent number: 5862771
    Abstract: Device aboard floating craft for tightening/slackening of an elongated flexible element (13) such as a mooring cable that extends from a body of water up to the device (11, 12) is rotatably mounted about the longitudinal axis of the flexible element (13) directed towards the device (11,12).
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: January 26, 1999
    Assignee: Kvaerner Engineering A.S.
    Inventors: Espen Lange, Dag Aavitsland
  • Patent number: 5842434
    Abstract: A mooring assembly for an offshore floater comprises a vertical shaft (4) in the floater (1), a rotating part (5) rotatably mounted in the vertical shaft about a vertical axis, a number of mooring cables (16) extending from the rotating part down to the seabed, and a device (17) aboard the floater (1) for tightening/slackening the mooring cables. Each mooring cable (15, 16) is secured, right below the rotating part (5), to a rigid body (13) having two ends, one end being connected by a universal swivel joint (12) to the rotating part (5) and the other end comprising a locking device (14) for locking the mooring line to the rigid body (13).
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: December 1, 1998
    Assignee: Kvaerner Engineering AS
    Inventors: Espen Lange, Dag Aavitsland