Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape
Patent
1982-12-03
1985-06-25
Blix, Trygve M.
Ships
Watercraft with means used in providing sailpower
Having specifically defined hull shape
114 61, 114102, 114 89, 403217, B63B 3500
Patent
active
045247099
ABSTRACT:
A collapsible wind propelled watercraft adapted for movement over water having a substantially tetrahedral frame comprising three substantially equidistantly spaced support members adapted to engage and be supported on the surface of the water, four substantially rigid spars hingedly connected together at a juncture and extending radially outwardly therefrom such that three of the spars may articulate about the fourth spar to collapse the frame, the four spars further being separated from each other by equal angles. A plurality of stays are connected between each one of the spars and the other spars at points on the spars substantially equidistant from the juncture so as to form the substantially tetrahedral frame, and three of the spars extend laterally and downwardly from the juncture and have the support members connected near their distal ends. Suspended in the area defined by the three spars and the water surface is a trampoline connected to the distal ends of the three spars extending downwardly. A pair of sails are connected to the tetrahedral frame in such a manner that they are capable of being raised or lowered, and a line arrangement connected to one of the three support members enables the craft to be steered in a desired direction.
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Blix Trygve M.
Swinehart Edwin L.
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