Mattress having a spring unit with a single upper peripheral border rod locked within a chamber of a synthetic foam plastic material housing
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United States of America Patent
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Jan 18, 2011
Issued Date -
N/A
app pub date -
May 29, 2003
filing date -
May 29, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mattress includes a chamber defined by upper and lower panels and a peripheral border all constructed from synthetic polymeric/copolymeric plastic material and housing therein a spring unit. The spring unit includes a plurality of springs having upper ends connected to a peripheral border rod. The spring unit is devoid of a peripheral border rod at lower ends of the springs. Upper edges of the spring unit can be deformably gripped by the upper panel, the peripheral border and/or both to prevent “swimming pool” effect.
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Family
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Cited Art Landscape
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