Sole construction for footwear
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United States of America Patent
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-
Nov 12, 1985
Grant Date -
N/A
app pub date -
Sep 23, 1983
filing date -
Sep 23, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sole unit for footwear such as an athletic shoe includes an integral midsole/wedge or a wedge for use with a midsole. The integral midsole/wedge unit and the wedge for use with a midsole both are formed by a shell and an encapsulated core. The shell and core comprise plastic materials which have individual strengths and weaknesses in a shoe construction, yet provide, as a composite improved results in a shock dispersion and memory system. In a second aspect, the integral midsole/wedge is a single density or a two-density unit precompressed from a low density material.
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