Importance

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Abstract

A watermattress includes a outer bladder for retaining water and an inner chamber assembly for inhibiting wave motion within the bladder. The chamber assembly includes a first chamber disposed generally vertically with respect to a second chamber. The walls of the respective chambers form a passage which permits a flow of water from the first chamber to the second chamber thereby providing the chambers with different collapsed characteristics. The top chamber may have relatively fast collapse characteristic providing a soft sitting surface while the second chamber can have relatively slow collapse characteristics to more significantly retard the downward movement of a person sitting on the mattress.

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First Claim