Body support cushion having multiple layers of phase change material
AssigneeTempur-Pedic Management, LLC
InventorsTom Mikkelsen, Christioher Anthony Arendoski, Stephen Watson SWITZER, Kelly Wood Chandler, Mohamed f. Alzoubi
Life of this patent
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Abstract
A body support cushion, e.g., mattress, has multiple foam layers, including a viscoelastic foam layer and a reticulated beat properties that provide two intervals of dermal cooling.
Claims21
A body support cushion, comprising:
- a layered arrangement of foam comprised of at least one layer of viscoelastic foam having a density of at least 20 kg/m3 and no more than 150 kg/m3;
- phase change material in the layer of viscoelastic foam.
(canceled)
The body support cushion of claim 21 wherein the phase change material includes a plurality of microspheres containing phase change material, and wherein the microspheres are formed in the second layer of viscoelastic foam.
(canceled)
A body support cushion, comprising:
- a layered arrangement of foam comprised of at least one layer of viscoelastic foam having a density of at least 20 kg/m3 and no more than 150 kg/m3;
- phase change material in the layer of viscoelastic foam;
- wherein the layer arrangement of foam includes a first base layer of conventional foam, a first layer of viscoelastic foam adjacent the first base layer, and a second layer of viscoelastic foam adjacent the first layer of viscoelastic foam;
- and
- wherein the first base layer of conventional foam includes first and second base layers stacked adjacently to one another.
A body support cushion, comprising:
- a layered arrangement of foam comprised of at least one layer of viscoelastic foam having a density of at least 20 kg/m3 and no more than 150 kg/m3;
- phase change material in the layer of viscoelastic foam;
- wherein the layer arrangement of foam includes a first base layer of conventional foam, a first layer of viscoelastic foam adjacent the first base layer, and a second layer of viscoelastic foam adjacent the first layer of viscoelastic foam;
- and
- wherein the first layer of viscoelastic foam includes reticulated foam.
A body support cushion, comprising:
- a layered arrangement of foam comprised of at least one layer of viscoelastic foam having a density of at least 20 kg/m3 and no more than 150 kg/m3;
- phase change material in the layer of viscoelastic foam;
- wherein the layer arrangement of foam includes a first base layer of conventional foam, a first layer of viscoelastic foam adjacent the first base layer, and a second layer of viscoelastic foam adjacent the first layer of viscoelastic foam;
- and
- wherein the second layer of viscoelastic foam includes viscoelastic material having a density greater than the density of the first layer of viscoelastic foam.
A mattress comprising:
- a multilayer arrangement of foam layers with at least two layers of viscoelastic foam having a density of at least 20 kg/m3 and no more than 150 kg/m3, and wherein at least one of the viscoelastic layers is comprised of reticulated viscoelastic material;
- an outer cover encasing the multilayer arrangement of foam layers;
- and
- phase change material contained in one of the at least two layers of viscoelastic foam and the outer cover.
A mattress comprising:
- a multilayer foam arrangement comprised of a first non-reticulated viscoelastic layer, a second reticulated, viscoelastic layer, and a third non-reticulated non-viscoelastic layer;
- an outer cover enclosing the multilayer foam arrangement;
- and
- phase change material contained in the multilayer foam arrangement and the outer cover.
Dependencies are inferred from the claim text.