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US 8,025,964 B2Granted
Laminated visco-elastic support
AssigneeTempur World, LLC
InventorsDag Landvik, Michael B. Allaway
Life of this patent
Estimating the term…
Abstract
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.
Claims19
A bed mattress for support of a user, the bed mattress comprising:
- a substantially planar first foam layer having a first surface and a second surface and having length and width dimensions sufficient to support a reclining body of an adult user, the first foam layer being made of a first viscoelastic foam;
- a substantially planar second foam layer having a third surface and a fourth surface, the third surface positioned directly adjacent to the second surface of the first foam layer, the second foam layer being made of a second viscoelastic foam having different properties than the first viscoelastic foam;
- a substantially planar third foam layer positioned directly adjacent to the fourth surface of the second foam layer, the third foam layer being made of reticulated filter polyurethane foam;
- and
- a cover positioned directly adjacent to at least one of the first layer and the third layer,
- the layers of the bed mattress collectively defining a structure for support of the user in a lying position upon the bed mattress.
3 more elements
A bed mattress for support of a user, the bed mattress comprising:
- a first foam layer having a first surface and a second surface and having length and width dimensions sufficient to support a reclining body of an adult user, the first foam layer being made of a first viscoelastic foam;
- a second foam layer having a third surface and a fourth surface, the third surface positioned directly adjacent to and coupled to the second surface of the first foam layer, the second foam layer being made of a second viscoelastic foam having different properties than the first viscoelastic foam;
- a third foam layer positioned directly adjacent to and coupled to the fourth surface of the second foam layer, the third foam layer being made of reticulated filter polyurethane foam;
- and
- a cover positioned directly adjacent to at least one of the first layer and the third layer,
- the layers of the bed mattress collectively defining a structure for support of the user in a lying position upon the bed mattress.
3 more elements
A bed mattress for support of a user, the bed mattress comprising:
- a substantially planar first foam layer having a first surface and a second surface and having length and width dimensions sufficient to support a reclining body of an adult user, the first foam layer being made of a first viscoelastic foam;
- a substantially planar second foam layer having a third surface and a fourth surface, the third surface directly adhered to the second surface of the first foam layer, the second foam layer being made of a second viscoelastic foam having different properties than the first viscoelastic foam;
- a substantially planar third foam layer directly adhered to the fourth surface of the second foam layer, the third foam layer being made of reticulated filter polyurethane foam;
- and
- a cover positioned directly adjacent to at least one of the first layer and the third layer,
- the layers of the bed mattress collectively defining a structure for support of the user in a lying position upon the bed mattress.
3 more elements
Dependencies are inferred from the claim text.