초록 ▼

A water bed flotation mattress comprising a bladder of flexible sheet plastic with vertically spaced horizontal top and bottom walls and vertical side and end walls and slackily filled with a fluid medium; said mattress including a thin, flat, flexible, horizontal intermediate wall normally in space

A water bed flotation mattress comprising a bladder of flexible sheet plastic with vertically spaced horizontal top and bottom walls and vertical side and end walls and slackily filled with a fluid medium; said mattress including a thin, flat, flexible, horizontal intermediate wall normally in spaced parallel relationship between the top and bottom walls and a plurality of laterally spaced parallel thin and flexible partitions fixed to and extending between the intermediate and bottom walls and cooperating therewith to define elongate open ended fluid conducting tunnels and float structure about the plane of the intermediate wall to normally buoy up the intermediate wall and partitions within the mattress.

대표청구항 ▼

A flotation mattress engageable in a frame having a horizontal platform and vertical side and end rails about and projecting upwardly from the platform; said mattress including an outer bladder of flexible, supple, water impervious sheet material with a flat, horizontal platform engaging bottom wall

A flotation mattress engageable in a frame having a horizontal platform and vertical side and end rails about and projecting upwardly from the platform; said mattress including an outer bladder of flexible, supple, water impervious sheet material with a flat, horizontal platform engaging bottom wall, vertical rail engaging side and end walls and a flat normally horizontal depressable top wall; a volume of fluid medium within and slackly filling the bladder; a normally flat, horizontal intermediate wall of flexible material in spaced relationship between the top and bottom walls and dividing the interior of the bladder into upper and lower portions; a plurality of spaced, vertical partitions of flexible, supple material fixed with and extending between the bottom and intermediate walls and cooperating therewith to define elongate fluid conducting tunnels with opposite ends in said lower portion of the bladder; flow metering fluid transfer means communicating with and between related ends of the tunnels; flotation means at the intermediate wall normally buoying up and maintaining that wall and the partitions in their normal position within the bladder and wherein said flow metering transfer means includes fluid conducting chambers at and extending between adjacent ends of adjacent tunnels and membranes of flexible material overlying the ends of the tunnels and having flow metering openings communicating with the tunnels and the chambers.