Cushioning device and spring floor system incorporating same
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United States of America Patent
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Dec 25, 2012
Grant Date -
Oct 27, 2011
app pub date -
Jul 8, 2011
filing date -
Jun 6, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A floor system (20) includes a plurality of cushioning devices (22) attached to a lower side (40) of a wood floor (32). Each cushioning device (22) includes a spring (46) that may be attached at each of its ends to first and second caps (48, 50). The spring (46) includes longitudinally aligned regions (58, 60) interposed between the caps (48, 50). The region (58) exhibits a lower spring rate (64) than a spring rate (66) of the other region 60. In response to an imposed force, the first region (58) of spring (46) first compresses. When the imposed force is great enough, due to a user's weight, the second region (60) of spring (46) will then compress.
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