Sole-and-heel structure having premolded bulges
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United States of America Patent
Stats
-
Mar 25, 1986
Grant Date -
N/A
app pub date -
Apr 27, 1984
filing date -
Apr 27, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In one embodiment, the sole-and-heel structure includes an outer member having a sole portion and a heel portion. A bulge is molded into the heel portion and a bulge is molded into the sole portion in the metatarsal region thereof. A thin sealing member is attached to the outer member with adhesive to hermetically seal the cavities defined by the two bulges. A passageway between the two cavities enables air to move back and forth during movement of a person wearing shoes incorporating such sole-and-heel structure.
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