Collapsible tension-compression variable hull structure

Ships – Boats – boat component – or attachment – Collapsible

Patent

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Details

B63B 700

Patent

active

054995949

ABSTRACT:
A collapsible tension-compression variable hull structure that collapses and stores substantially flat, yet deploys in seconds without additional parts or accessories. The tension boat design is a unique prestressed structure that strengthens the hull, reduces the need for ribs and makes the hull easily collapsible for storage and transport. Basically the present invention in it's most simple form or embodiment is a boat comprised of five simple parts: two hard, slightly flexible sides, a waterproof flexible bottom, a line running from bow to stern, and some method of applying tension to shorten the line. In the storage phase, the boat looks like two thin boards with rumpled waterproof plastic attached to the bottom. The sides bow out like an archery bow when tension is applied shortening the line. The exact beam or width of the boat depends on the amount of tension on the line. Additionally, the use of multiple tension members running through guides located off the center line of the vessel allows for most aspects of the hull shape to be trimmed and altered even while the vessel is underway. There are many optional formats for such a boat including use as a dingy, a canoe, a sailboat, or a pram, or other different variations which can be built from the same basic idea.

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