Patent ID: 7156038

Claim:
A frame ( 1 ) for attachment to an underside of a dock structure to provide buoyancy thereto, characterized by: a generally planar frame portion ( 4 ); a plurality of receiving members ( 3 ), attached to said frame portion ( 4 ) and each adapted to receive a hollow container ( 2 ) by holding and sealing an open end of said container ( 2 ), each of said receiving members ( 3 ) comprising a plurality of supports ( 5 ) extending in an outward radial direction with respect to each receiving member ( 4 ); and means for attaching said frame ( 1 ) to the underside of a dock structure, such that each of said hollow containers ( 2 ) depends from said frame ( 1 ) and is detached from one another, and wherein said containers provide a buoyancy effect to said dock structure.