B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/58.4
B63B 35/44 (2006.01) B63B 35/08 (2006.01)
Patent
CA 1250188
WIDE BASED SEMI-SUBMERSIBLE VESSEL ABSTRACT OF THE DISCLOSURE The present invention as disclosed provides a wide-based, semi-submersible vessel comprising a longitudinally elongated deck (10), means including a plurality of stability columns (20) extending from the deck, elongated pontoon means (30) connected to the lower ends of each of the stability columns for providing a wide buoyant base, the pontoons having the same cross- sectional area along the longitudinal axis thereof, and means (64, 66) in the columns and pontoons for discharg- ing and taking on ballast, characterized in that each of the stability columns extends downwardly and outwardly from the bottom of a respective port or starboard side edge of the deck for changing the effective beam of the vessel as a function of draft.
452681
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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