초록

A laminated support for pressure-relief comprising multiple foam layers. The combinations of layers can comprise one or more layers of visco-elastic foam, highly resilient polyurethane foam, reticulated filter polyurethane foam, and the like.

대표청구항 ▼

The invention claimed is: 1. A bed mattress comprising:a first foam layer having a first support surface adapted to substantially face a user resting upon the bed mattress and having length and width dimensions sufficient to support a reclining body of a person, and a second surface opposite the fir

The invention claimed is: 1. A bed mattress comprising:a first foam layer having a first support surface adapted to substantially face a user resting upon the bed mattress and having length and width dimensions sufficient to support a reclining body of a person, and a second surface opposite the first support surface, the first foam layer comprising visco-elastic foam having a density of no less than 50 kg/m3 and no greater than 120 kg/m3;a second foam layer having a third surface positioned directly adjacent the second surface of the first foam layer and a fourth surface spaced from the first foam layer, the second foam layer comprising visco-elastic foam and having a thickness greater than a thickness of the first foam layer;a third foam layer having a fifth surface positioned directly adjacent the fourth surface of the second foam layer and a sixth surface spaced from the second foam layer, the third foam layer being made of reticulated filter polyurethane foam; anda cover positioned directly adjacent at least one of the first foam layer and the third foam layer.