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US 6,308,354 B1Granted
Upholstery pad with steel reinforced support
AssigneeSerta, Inc.
InventorsEdward F. Lilly, Robert J. Sabalaskey
Life of this patent
Estimating the term…
Abstract
A mattress is provided having an innerspring, at least one upholstery layer, which includes at least one foam layer, and quilt panel layers. The upholstery layer has an edged support layer, a steel wire grid laminated to the edged support layer, and a firm foam layer laminated to the steel wire grid. The steel wire grid serves to provide support and to reduce the sagging effect caused when adding additional foam layers. The firm foam layer provides support distributed even across the mattress and may be used alone or in combination with the steel wire grid.
Claims10
A mattress, comprising:
- a) an innerspring;
- b) at least one upholstery portion adjacent to the innerspring, comprising:
- (1) at least one edged support layer having an edge of foam attached to the perimeter of an inner foam layer, wherein the edge of foam is firmer than the foam in the inner foam layer;
- (2) a wire grid adjacent and attached to the edged support layer;
- (3) at least one firm foam layer provided adjacent and attached to the wire grid and wherein the foam of the firm foam layer is firmer than the foam of the inner foam layer;
- and
- c) at least one quilt panel portion adjacent to the upholstery portion.
4 more elements
A mattress, comprising:
- a) an innerspring;
- b) at least one upholstery layer adjacent to the innerspring, said upholstery layer comprising:
- (1) at least one edged support layer having an edge of foam attached to the perimeter of an inner foam layer, wherein the edge of foam is firmer than the foam in the inner foam layer;
- (2) a wire grid adjacent and attached to the edged support layer wherein the wire grid is made of thin plastic cords connected by wire;
- (3) at least one firm foam layer adjacent and attached to the edged support layer wherein the foam of the firm foam layer is about 130 to about 170 IFD;
- and
- c) at least one quilt panel layer adjacent to the at least one upholstery layer.
4 more elements
Dependencies are inferred from the claim text.