Patents by Inventor Lembits Maimets

Lembits Maimets 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).

  • Apparatus for repair of high temperature and pressure conduits, method for repairing high temperature and pressure conduits, and a sealing device for repairing high temperature and pressure conduits
    Patent number: 6240965
    Abstract: A conduit repair apparatus includes a carriage configured for movement within a conduit, the carriage including a carrying frame and a drive member. An expansion and brake mechanism is provided on the carriage, and includes at least one radially movable engagement member to apply a radially outwardly directed force. A mechanical force applicator mechanism is provided on the carriage and includes at least one force applicator configured to apply radially outwardly directed pressure and for rotation about an axis of rotation. A power source is connected to the force applicator mechanism to rotatably drive the force applicator about the axis of rotation, whereby the force applicator mechanism can be actuated and simultaneously rotated to thereby apply radially outwardly directed pressure uniformly to an inner wall of a repair sleeve positioned within the conduit.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: June 5, 2001
    Assignee: Link-Pipe (H.K.), Ltd.
    Inventor: Lembits Maimets