| 摘要 |
A "stratified" cushion assembly which can be used to support the human body under various conditions. The stratified cushion assembly generally includes alternating strata of supportive material, with each stratum having a different compression modulus than its adjacent strata. In the preferred embodiment the cushion assembly comprises alternating strata of visco-elastic memory foam and open-cell polyurethane foam. The strata are adhesively attached together with a foam adhesive.
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