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Lifting system and apparatus for constructing wind turbine towers

United States Patent

February 1, 2011
View the Complete Patent at the US Patent & Trademark Office
The disclosed invention is utilized for mounting a wind turbine and blade assembly on the upper end of a wind turbine tower. The invention generally includes a frame or truss that is pivotally secured to the top bay assembly of the tower. A transverse beam is connected to the frame or truss and extends fore of the tower when the frame or truss is in a first position and generally above the tower when in a second position. When in the first position, a wind turbine or blade assembly can be hoisted to the top of the tower. The wind turbine or blade assembly is then moved into position for mounting to the tower as the frame or truss is pivoted to a second position. When the turbine and blade assembly are secured to the tower, the frame or truss is disconnected from the tower and lowered to the ground.
Livingston; Tracy (Heber City, UT), Schrader; Terry (Southlake, TX), Goldhardt; James (Salt Lake City, UT), Lott; James (Newburgh, IN)
Wind Tower Systems, LLC (Park City, UT)
11/ 649,033
January 3, 2007
STATEMENT REGARDING STATE OF CALIFORNIA SPONSORED RESEARCH OR DEVELOPMENT The invention was made with State of California support under California Energy Commission grant number PIR-04-012. The Energy Commission has certain rights to this invention.