FOAM MATTRESS WITH PROGRESSIVE SUPPORT CHARACTERISTICS AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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N/A
Issued Date -
Jul 31, 2014
app pub date -
Jul 18, 2012
filing date -
Jul 19, 2011
priority date (Note) -
Abandoned
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Abstract
A mattress includes top and bottom foam layers. A bottom surface of the top foam layer and a top surface of the bottom foam layer include protrusions and recessions. The protrusions of the top surface of the bottom foam layer protrude into the recessions of the bottom surface of the top foam layer, and the protrusions of the bottom surface of the top foam layer protrude into the recessions of the top surface of the bottom foam layer. The most protruded surfaces of the protrusions of the bottom surface of the top foam layer are separated from corresponding surfaces of the recessions of the top surface of the bottom foam layer by a channel, but there is no channel between most protruded surfaces of the protrusions of the top surface of the bottom foam layer and corresponding surfaces of the recessions of the bottom surface of the top foam layer.
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