Ships – Watercraft with means used in providing sailpower – With means for uprighting capsized watercraft
Patent
1998-12-11
2000-07-18
Basinger, Sherman
Ships
Watercraft with means used in providing sailpower
With means for uprighting capsized watercraft
114 3928, 114 6111, 114 6116, 114 6118, 114 91, B63B 114
Patent
active
060891734
ABSTRACT:
A multi-hull watercraft, such as a catamaran or trimaran is constructed to facilitate the righting thereof following a capsize. By providing a pivot connection between the hulls and the cross-members, in accordance with one method, it is possible to right the capsized vehicle by piecemeal rotation of the hulls through 180.degree. from an inverted to an upright disposition. Following this maneuver, the mast may be either rotated up and out of the water to an erect disposition or, alternatively, the mast can be jacked vertically through the deck. In accordance with a second method, the multiple hulls are interconnected by articulated, extendable and contractible cross-members and righting is achieved by sequentially reducing the beam of the craft, canting its buoyant mast from vertical so that the watercraft will roll so as to be floating on one hull and on the buoyant mast and then while canting the mast in the opposite direction again extending the cross-member to increase the beam such that a rotational moment about the one hull is created sufficient to raise the mast out of the water to an upright disposition.
REFERENCES:
patent: 3865061 (1975-02-01), Newman
patent: 4159006 (1979-06-01), Thurston
patent: 4457248 (1984-07-01), Thurston
patent: 4878447 (1989-11-01), Thurston
patent: 5216971 (1993-06-01), Karmes
patent: 5277142 (1994-01-01), Connor
patent: 5848574 (1998-12-01), Lande
Book: "The Capsize Bugaboo" published by Chiodi Advertising & Publishing, Inc., Boston, MA copyright 1980.
Amateur Yacht Research Society, Publication No. 63, "Multihull Capsizing". Jan. 1968.
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