Foam filled watercraft float with rollers

Abstract

A thin molded outer shell houses a foam filled interior on a watercraft float. Rollers supported by extra foam assist in the loading and unloading of watercraft.

1 . A foam filled thin shelled watercraft float device with rollers, the device comprising:
 a watercraft float body comprising a single-ply outer shell molded of watertight flexible material, the outer shell housing an interior filled completely with floatation foam to form a buoyant watercraft float body with the resilient outer shell supported by the floatation foam, the floatation foam structured to float on water so that the watercraft float body will remain floating and supporting a watercraft should a leak occur is the outer shell;   a plurality of rollers attached to a top surface of the watercraft float body for assisting the loading and unloading of watercraft on the top surface of the watercraft float body, the plurality of rollers comprising a plurality of threaded inserts created in a roller support portion of the molded body, a plurality of roller axles mounted in the plurality of threaded inserts, a plurality of rollers mounted on the plurality roller axles, the plurality of rollers arrayed in two spaced parallel rows of angled rollers to receive a watercraft on the rollers to assist the movement of the watercraft onto and off of the watercraft float body;   the floatation foam comprising a high density high strength foam positioned below the roller support portion of the top surface of the watercraft float body to maintain the plurality of rollers in position attached to the watercraft float body under the weight of the watercraft thereon.   
   
   
       2 . The device of  claim 1  wherein the floatation foam within the molded body comprises encapsulated polystyrene foam. 
   
   
       3 . The device of  claim 2  wherein the floatation foam within the molded body comprises lightweight encapsulated polystyrene foam beads. 
   
   
       4 . The device of  claim 1  wherein the two spaced parallel rows of angled rollers comprise rubber rollers positioned at an angle to the top of the watercraft float body so that each of the rollers in each of the parallel rows of angled rollers is perpendicular to a bow of the watercraft riding on the rollers. 
   
   
       5 . The device of  claim 1  wherein the top surface of the watercraft float body comprises a flat top surface adjacent to the two sides and the back end of the watercraft float, a pair of protruding spaced parallel tracks having the two spaced parallel rows of angled rollers each attached to one of the pair of protruding spaced parallel tracks and to the top surface of the watercraft float body along a portion of the length of the pair of protruding spaced parallel tracks having the plurality of rollers extending above the pair of protruding spaced parallel tracks, a recessed boat receiving trough between the pair of protruding spaced parallel tracks, and a sloping boat ramp extending downwardly from the boat receiving trough to a low boat receiving edge positioned below a level of the water at a front end of the watercraft float with the watercraft float in a body of water, to receive a watercraft driven from a body of water surrounding the watercraft float up the ramp into the recessed boat receiving trough with the two spaced parallel rows of angled rollers acting as guides for directing the watercraft into the boat receiving trough. 
   
   
       6 . The device of  claim 1  wherein a bottom surface of the watercraft float body comprises a flat bottom surface with a pair of spaced parallel indented slots in the bottom of the watercraft float directly below the pair of protruding spaced parallel tracks on the top surface, the pair of spaced parallel indented slots configured to receive and mate with a pair of protruding spaced parallel tracks from another similar watercraft float positioned directly below the watercraft float in a stacked array comprising an upper watercraft float and a lower watercraft float with a flat top surface of the lower watercraft float contacting the flat bottom surface of the upper watercraft float so that a number of the watercraft floats can be stacked together for transportation and storage in a stacked array with the tracks and slots interlocking to secure the stacked array which takes up less vertical space than watercraft floats with no bottom slots to receive the top tracks. 
   
   
       7 . The system of  claim 1  wherein the outer shell has a wall thickness of the 3/16 inch.