Abstract: A floatable heavy duty hose assembly for conveying fluid entrained materials during dredging and related operations which includes a flexible cylindrical conduit which is reinforced at spaced intervals and wherein a plurality of floats are mounted in surrounding relationship with the conduit at the areas of reinforcement to thereby provide evenly distributed areas of flotation intermediate spaced areas of flexibility with the overall structure permitting the hose assembly to be handled and maneuvered in a uniform manner without undue interference by the floats.

Abstract: Coupler assemblies for permitting the selective connection of two or more barges or other water borne floating vessels or structures wherein one or more pairs of vertically spaced coupler boxes are united in fluid tight communication with one another along one or more side walls of such vessels or structures in such a manner as to be open through the side walls, decks and bottom walls thereof and wherein upper and lower opposing coupler boxes of adjacent vessels or structures are united by upper and lower longitudinally extending connector pins which are retained in assembled relationship within opposing coupler boxes by first and second vertically oriented wedge pins which are accessible from the decks of the respective vessels or structures.