Patent ID: 7240445

Claim:
A display apparatus, comprising: at least two elongate pontoons provided in parallel arrangement, each of said pontoons having opposed first and second ends, and first and second sides; a plurality of column members extending in a row from the first side of each of said pontoons; and an elongate transverse member provided in parallel arrangement to said pontoons, each of said column members connecting to the transverse member; a ballast system including at least one elongate, ballast mounted to a generally horizontally extending surface of the second side of each of said pontoons and having opposed, open first and second ends that are structurally rigid, and a continuous, solid wall, tarpaulin material construction extending between the first and second ends for permitting water to only flow through the first and second ends, the structurally rigid first and second ends maintaining the ballast as an open conduit by preventing the continuous, solid wall, tarpaulin material from collapse and enabling ample fluid transport therethrough; wherein the pontoons, the column members and the transverse member each comprise at least one independently inflatable compartment; and wherein each elongate ballast is generally coextensive with the generally horizontally extending surface of the second side of the pontoons.