Buoyant mattress for snorkeler
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embodiment 20
[0042] Referring now to FIGS. 2 to 4, another embodiment of the invention is there shown generally at numeral 20. In this embodiment 20, the mattress 22 is the inflatable type and is formed of side-by-side elongated air chambers 28 formed by internal partitions 30 and inflated through an air valve (not shown). Flexible side handles 32 may be used for attaching other articles thereto.
[0043] This embodiment of the mattress 22 also includes a viewing hole 26 formed having a circular perimeter 24 entirely transversely through the thickness of the mattress 22. Positioning of the viewing hole 26 is adjacent one end of the mattress 22 and is centered laterally for optimal positioning with respect to a face mask F and a snorkel S worn by the snorkeler A. Again, as seen in FIG. 4, the head H of the snorkeler A may be positioned fully within the viewing opening 26 so that the lens L of the face mask F is positioned below the waterline W while the upper end of the snorkel S is positioned well ...
third embodiment
[0044] Referring now to FIG. 5, the invention is there shown generally at numeral 40 and formed of molded closed cell foam material such as skinned polyurethane foam to achieve body-supporting buoyancy. The mattress 42 is formed including a viewing hole 46 formed entirely transversely through the mattress 42 as defined by viewing perimeter 44 which is, again, circular and positioned adjacent one end of the mattress 42. The volume of foam and the thickness thereof are determined such that the typical child-sized or adult-sized snorkeler will be positioned with the lens L of the face mask F beneath the surface of the water W for enhanced underwater viewing, restfulness while being supported in the prone position atop the device 40 and assuring comfort that splashes or waves of water will not inadvertently enter into the open upper end of the snorkel S which could possibly lead to water ingestion by the snorkeler A.
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