Floating barrage
AssigneeBerg Marine A/S
InventorLeif Berg
Life of this patent
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Abstract
A floating barrage comprising an air-containing buoyancy member (13) and a curtain suspended from the buoyancy member (13) which curtain is maintained in approximately vertical position in the water by a ballast member (9) connected to the curtain, wherein the buoyancy member and the curtain are constituted by an envelope formed by a flexible film (4) having a lower edge (7) connected to the ballast member (9) and in which the envelope contains air in a significantly smaller amount than the amount required to inflate the envelope but sufficient to keep the envelope and the ballast floating in water with part of the envelope projecting above the water surface.
Claims10
A floating barrage comprising an air-containing buoyancy portion and a curtain suspended from said portion, said curtain being maintained in an approximately vertical position in the water by a ballast member connected to the curtain, the buoyancy portion having the form of an air-tight envelope formed by a flexible film (1) having a lower edge connected to the ballast member, wherein the air-tight envelope, which is formed by the flexible film (1), constitutes both the buoyancy portion and the curtain, wherein the amount of air within the envelope is fixed and wherein no means are provided for introducing or evacuating air to or from the envelope.
Dependencies are inferred from the claim text.