Jack-up platform
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United States of America Patent
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Feb 14, 2012
Grant Date -
Apr 29, 2010
app pub date -
Mar 20, 2007
filing date -
Mar 20, 2007
priority date (Note) -
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Abstract
A jack-up platform (1) has a hull (2) and at least three longitudinally movable support legs (3) for the hull (1), at least one of the support legs (3) has at least one variable speed drive (8, 8.sub.A1 to 8.sub.F2) as a part of a leg driving mechanism, wherein the platform (1) has a closed-loop control unit (7) for the driving mechanism, the closed-loop control unit (7) being connected with the variable speed drive (8, 8.sub.A1 to 8.sub.F2) via a bi-directional electronic bus (16) for transmitting control parameters (M*,M,N,R).
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