Ships – Apparatus held by or attached to rider to control sailboard... – Foot strap means
Patent
1988-05-02
1991-05-07
Basinger, Sherman D.
Ships
Apparatus held by or attached to rider to control sailboard...
Foot strap means
108128, 114 61, 114 85, B63B 348
Patent
active
050127535
ABSTRACT:
A light weight and collapsible platform and platform support structure usable as the deck and central structure of a folding boat and of a levelable, raised platform tent camper. This collapsible platform support structure is a unique arrangmeent of compression carrying arms radiating out from a central hub and jacking device, with an arrangement of tension carrying cables linking and supporting the radial arms into a rigid geometry. By concept and design the structure maximizes horizontal platform area for a minimum of weight and structure. Light weight allows transportability and collaspsibility allows stowability. The structure is opened from a collapsed state to a rigid erected state by operation of the jack, which moves the cable hub away from the arm hub. This action rotates the arms downward, loading the arms in compression and the cables and platform in tension, eventually locking the the structure into it's rigid erected geometry. Necessary auxiliary items can be fastened to this rigid geometric structure to allow it to float and be propelled and controlled when in the water, and to be leveled and moved about when on land.
REFERENCES:
patent: 1741846 (1929-12-01), Kahn
patent: 2483585 (1949-10-01), Lewis
patent: 2785735 (1957-03-01), Banks
patent: 3831539 (1974-08-01), Black
patent: 4333412 (1982-06-01), McKenna
Antrim James K.
Grassi David
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