Method of manufacturing a midsole for a shoe and construction therefor
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United States of America Patent
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Mar 14, 1995
Grant Date -
N/A
app pub date -
Jun 10, 1991
filing date -
Jun 10, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is directed to a method of manufacturing a midsole for a shoe and the structure of the resulting midsole. The midsole includes a core of a first plastic material and a peripheral wrap of a second plastic material. The wrap has an outer peripheral surface comprising at least a portion of an outer peripheral surface of the midsole. The method includes the steps of molding a peripheral wrap from a sheet stock of the first plastic material by applying compressive forces on the sheet stock in a direction which is substantially perpendicular with the outer surface of the sheet stock, placing the wrap around the inner peripheral surface of a mold which approximates the shape of the midsole, and pouring the first plastic material in the mold.
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