Symmetrical pressure relief foam mattress
First Claim
1. A mattress comprising:
- an upper foam layer with a lower side; and
a zoned foam layer with an upper side, a center axis, a top and a bottom, wherein the lower side of the upper foam layer is adjacent to the upper side of the zoned foam layer, wherein the zoned foam layer has a first lateral region, a second lateral region and a third lateral region, wherein a plurality of cylindrical holes are distributed throughout each of the first, second and third lateral regions, wherein the first lateral region is less than twelve inches wide and has a middle that is within eighteen inches of the top of the zoned foam layer, wherein the third lateral region is less than twelve inches wide and has a middle that is within eighteen inches of the bottom of the zoned foam layer, and wherein the second lateral region has a middle disposed at the center axis of the zoned foam layer.
2 Assignments
0 Petitions
Accused Products
Abstract
A symmetrical pressure relief foam mattress includes an upper foam layer placed on a zoned foam layer. A plurality of cylindrical holes are distributed throughout each of a first, a second and a third lateral region of the zoned foam layer. The first lateral region is less than twelve inches wide and has a middle that is within eighteen inches of the top of the zoned foam layer. The third lateral region is also less than twelve inches wide and has a middle that is within eighteen inches of the bottom of the zoned foam layer. The second lateral region has a middle disposed at the center axis of the zoned foam layer. The middle of both the first and third lateral regions is about fifteen inches from the edge of the mattress regardless of which end the consumer chooses to use as the head of the mattress.
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Citations
20 Claims
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1. A mattress comprising:
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an upper foam layer with a lower side; and a zoned foam layer with an upper side, a center axis, a top and a bottom, wherein the lower side of the upper foam layer is adjacent to the upper side of the zoned foam layer, wherein the zoned foam layer has a first lateral region, a second lateral region and a third lateral region, wherein a plurality of cylindrical holes are distributed throughout each of the first, second and third lateral regions, wherein the first lateral region is less than twelve inches wide and has a middle that is within eighteen inches of the top of the zoned foam layer, wherein the third lateral region is less than twelve inches wide and has a middle that is within eighteen inches of the bottom of the zoned foam layer, and wherein the second lateral region has a middle disposed at the center axis of the zoned foam layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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forming a first plurality of cylindrical holes in a first lateral region of a zoned foam layer, wherein the zoned foam layer has an upper side, a top, a bottom and a center axis; forming a second plurality of cylindrical holes in a second lateral region of the zoned foam layer; forming a third plurality of cylindrical holes in a third lateral region of the zoned foam layer; and placing a lower side of an upper foam layer on top of the upper side of the zoned foam layer, wherein the first lateral region is less than twelve inches wide and has a middle that is within eighteen inches from the top of the zoned foam layer, wherein the third lateral region is less than twelve inches wide and has a middle that is within eighteen inches from the bottom of the zoned foam layer, and wherein the second lateral region has a middle disposed at the center axis of the zoned foam layer. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A mattress comprising:
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an upper foam layer with a lower side; a zoned foam layer with an upper side, a top and a bottom, wherein the lower side of the upper foam layer is adjacent to the upper side of the zoned foam layer, and wherein the zoned foam layer has a first shoulder zone and a second shoulder zone; and means for imparting to the first shoulder zone and the second shoulder zone a lower indentation load deflection (ILD) than that exhibited by other regions of the zoned foam layer immediately adjacent to the first shoulder zone and the second shoulder zone, wherein the first shoulder zone is less than twelve inches wide and has a middle that is within eighteen inches of the top of the zoned foam layer, and wherein the second shoulder zone is less than twelve inches wide and has a middle that is within eighteen inches of the bottom of the zoned foam layer. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification