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US 10,946,946 B2Granted
Sail construction
AssigneeMides Design D.O.O.
InventorErik {hacek over (S)}ifrer
Life of this patent
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Abstract
Sail construction comprising foldable sail supports, a crossbeam, a holder, a sail, a bottom holder, ropes and a block and tackle system. The sail can be a self-inflatable sail designed similarly to paragliders, partially or fully inflatable.
Claims30
A sail construction for a vessel, the sail construction comprising:
- two foldable sail supports mountable on a deck on each side of the vessel and having an airfoil arranged freely rotatable around a longitudinal axis of each of said two foldable sail supports,
- a connecting coupler for connecting said two foldable sail supports on their top,
- a sail that is configured to be supported by said two foldable sail supports,
- a holder for holding and tensioning said sail upwards,
- a bottom holder pivotally mountable on the deck of the vessel in a middle between said two foldable sail supports, wherein the bottom holder is arranged to tension and to roll said sail and is arranged as a storage compartment of said sail,
- a system of ropes,
- a block and tackle system, and
- forestays, and backstays, for fastening and pre-tensioning elastically said two foldable sail supports on the vessel,
- wherein a rope of said system of ropes is arranged to run through a first pulley mounted on said connecting coupler to said holder for lifting and lowering said sail, and
- wherein at or near a middle of their length, both of said two foldable sail supports are designed so that they can be folded back or forth in relation to an axis of the vessel in order to be able to reduce a height at least by half.
7 more elements
Dependencies are inferred from the claim text.