Resilient cushioning device for the heel portion of a sole
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United States of America Patent
Stats
-
Apr 8, 2008
Grant Date -
Jun 9, 2005
app pub date -
Nov 2, 2004
filing date -
Nov 3, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A shoe includes a sole for cushioning a heelstrike. The sole includes a midsole, an optional outsole, and a resilient cushioning device. The resilient cushioning device includes a bottom component, a top component sealingly attached to the bottom component, wherein the top component includes a corrugated sidewall. The resilient cushioning device is a closed system that contains a fluid, such as a gas either at atmospheric pressure or pressurized. The resilient cushioning device may have only one interior compartment or a series of compartments fluidly connected to one another. The resilient cushioning device is partially embedded within the midsole in a heel region of the sole, although at least a portion of the sidewall of the resilient cushioning device remains visible from the exterior of a shoe sole.
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