Collapsible layered cushion
First Claim
1. A layered cushion comprising:
- a foam layer;
a fluid permeable void cell layer including;
a first matrix of void cells formed in a first surface;
a second matrix of void cells formed in a second surface, wherein the first surface, the second surface, and the foam layer each share a common normal axis;
at least one drainage hole at an interface between two adjacent void cells in the void cell layer, wherein the foam layer substantially collapses at a lower pressure than the fluid permeable void cell layer;
a separation layer configured to be oriented between the foam layer and the fluid permeable void cell layer, wherein at least one void cell of the fluid permeable void cell layer opens to the separation layer;
a rigid layer oriented adjacent to the fluid permeable void cell layer; and
a cover configured to envelop the foam layer and the void cell layer, wherein the cover constrains the foam layer and the fluid permeable void cell layer in a selected position and orientation when enveloping the foam layer and the fluid permeable void cell layer, and wherein the foam layer, the fluid permeable void cell layer, and the cover are removable from one another.
2 Assignments
0 Petitions
Accused Products
Abstract
A layered cushion that may be fully disassembled for easy cleaning is disclosed herein. The sleep system is durable and fire retardant. The layered cushion may include a foam layer, a layer of void cells, and a cover. The foam permits fluids to move freely there through and contours to a user'"'"'s body to maximize comfort and reduce interface pressure. The reticulated foam layer resists compression set and thermosetting. The layer of void cells also permits fluids to move freely there through and provide additional support to the user'"'"'s body. The individual void cells of the void cell layer are perforated to allow the transmission of fluids there through. The cover couples the other layers together to form the layered cushion and prevents the layers from deteriorating. The cover is removable to permit cleaning each of the layers independently.
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Citations
19 Claims
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1. A layered cushion comprising:
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a foam layer; a fluid permeable void cell layer including; a first matrix of void cells formed in a first surface; a second matrix of void cells formed in a second surface, wherein the first surface, the second surface, and the foam layer each share a common normal axis; at least one drainage hole at an interface between two adjacent void cells in the void cell layer, wherein the foam layer substantially collapses at a lower pressure than the fluid permeable void cell layer; a separation layer configured to be oriented between the foam layer and the fluid permeable void cell layer, wherein at least one void cell of the fluid permeable void cell layer opens to the separation layer; a rigid layer oriented adjacent to the fluid permeable void cell layer; and a cover configured to envelop the foam layer and the void cell layer, wherein the cover constrains the foam layer and the fluid permeable void cell layer in a selected position and orientation when enveloping the foam layer and the fluid permeable void cell layer, and wherein the foam layer, the fluid permeable void cell layer, and the cover are removable from one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of assembling a layered cushion comprising:
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positioning a foam layer adjacent a first surface of a separation layer and within a cover; positioning a fluid permeable void cell layer adjacent a second surface of the separation layer and within the cover, the fluid permeable void cell layer including a matrix of void cells formed in a first surface sharing a common normal axis with the foam layer, wherein the matrix of void cells includes at least one cell that opens to the separation layer and at least one cell that has a drainage hole, and wherein the foam layer substantially collapses at a lower pressure than the fluid permeable void cell layer; positioning a rigid layer adjacent to the fluid permeable void cell layer; and closing the cover to envelop the foam layer and the fluid permeable void cell layer, wherein the foam layer, the fluid permeable void cell layer, and the cover are removable from one another. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A washable layered mattress comprising:
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a fluid permeable foam layer; a fluid permeable void cell layer including; a first matrix of void cells formed in a first surface; and a second matrix of void cells formed in a second surface, wherein the first surface, the second surface, and the foam layer each share a common normal axis; a separation layer oriented between the foam layer and the fluid permeable void cell layer, wherein at least one void cell in the fluid permeable void cell layer opens to the separation layer; a rigid layer configured to be oriented adjacent the fluid permeable void cell layer; and a cover that envelops and constrains the foam layer and the fluid permeable void cell layer in a selected position and orientation, wherein the foam layer, the fluid permeable void cell layer, and the cover are removable from one another, and wherein at least one cell in the fluid permeable void cell layer includes a drainage hole. - View Dependent Claims (19)
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Specification