초록 ▼

An inflatable mattress having top and bottom sheets of thin vinyl material heat-sealed together to form a plurality of transversely extending inflatable ribs. The ribs are generally arcuate in shape so as to have a directional component in the longitudinal direction of the mattress. The ribs are arr

An inflatable mattress having top and bottom sheets of thin vinyl material heat-sealed together to form a plurality of transversely extending inflatable ribs. The ribs are generally arcuate in shape so as to have a directional component in the longitudinal direction of the mattress. The ribs are arranged in two groups, each composed of alternate ribs, and the groups are alternately inflated.

대표청구항 ▼

An inflatable mattress comprising: a top and a bottom sheet having head and foot ends and opposite sides, said sheets being heat-sealed together to form a plurality of inflatable ribs each extending from one side to the other and transversely of the body of the person lying on the mattress, said rib

An inflatable mattress comprising: a top and a bottom sheet having head and foot ends and opposite sides, said sheets being heat-sealed together to form a plurality of inflatable ribs each extending from one side to the other and transversely of the body of the person lying on the mattress, said ribs being closed at one end and open at the other, alternate ribs having their open ends on one side of the mattress and the remaining ribs having their open ends on the other side of the mattress, said sheets being made of a thin and flexible material so that the sheets collapse upon one another when the ribs are deflated, said ribs being arcuate in shape with the portion of each rib intermediate the sides lying closer to the head end of the mattress than the ends of the ribs so as to create in each rib a directional component perpendicular to the transverse direction of the mattress and toward the head end, manifolds formed between the sheets by heat-sealed seams between them, one manifold extending along each side of the mattress, said manifolds being connected to the open ends of the ribs on their respective sides of the mattress, and means for introducing air under pressure alternately into first one manifold and then the other manifold and causing the ribs connected to each manifold to be inflated sequentially from one end of the mattress to the other.