| 摘要 |
<p>A cushion (20, 80) and valve (28) combination, the valve (28) in fluid communication with the interior of the cushion, the valve (28) having an internal labyrinth (42, 44, 46) design that dampens dynamic air flow and pressure spikes wherein the valve (28) provides a controlled expulsion of air from the cushion (20, 80) to dampen air flow until a user positioned on the cushion (20, 80) is optimally immersed in the cushion and control pressure spikes caused by movement on the cushion.</p> |
