Modular unit for a floating dock system

Claim 1

A module dock assembly comprising: a. a generally elongated rectangular frame having generally parallel sideboards and spaced stringers extending from one sideboard to another at right angles thereto; b. a plurality of wooden planks extending lengthwise of said assembly and positioned side by side to form a deck of a single layer of planks; said planks being secured to said stringers; each plank having a longitudinal extending groove in its underside which groove compensates for the stresses imposed on said plank due to wetting and drying; c. a plurality of polyethylene pontoons secured to said stringers; said pontoons extending below said stringers and containing a solid body of foamed polystyrene therein; said pontoons containing holes whereby water flows into and out of said holes to serve as a variable ballast in response to changes in the load on said deck; d. a layer of polyethylene film between said planks and said pontoons for covering the open face of said pontoons so that said foamed polystyrene is completely encapsulated and protected; and e. linking members secured to said frame for securing a plurality of frames together to form an integral dock structure.