Method and system for performing operations on a wind turbine

Details Method and system for performing operations on a wind turbine Method and system for performing operations on a wind turbine

2006-12-14

2010-06-15

Marcelo, Emmanuel M (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

C416S142000

Reexamination Certificate

active

07735808

ABSTRACT:
A wind turbine has a nacelle frame and a first hoist substantially permanently mounted on the frame. The method comprises the processes of hoisting a second, more powerful hoist and crane on the frame with the first hoist; removably mounting the second hoist and the crane on the nacelle frame; hoisting a winch using the second hoist and the crane on the frame, and removably mounting the winch on said frame; performing operations involving handling heavy parts employing said winch; and removing and lowering said winch, crane, and second hoist from the frame.

REFERENCES:
patent: 6364609 (2002-04-01), Barnes
patent: 2003/0183594 (2003-10-01), Torres Martinez
patent: 2004/0169376 (2004-09-01), Ruer et al.
patent: 2006/0175465 (2006-08-01), Teichert
patent: 2007/0151194 (2007-07-01), Livingston et al.
patent: 2008/0078128 (2008-04-01), Livingston et al.
patent: 2008/0257844 (2008-10-01), Llorente Gonzalez et al.
patent: 1577550 (2005-09-01), None
patent: WO 02/34664 (2002-05-01), None
patent: WO 2006/013222 (2006-02-01), None

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