Athletic shoe sole design and construction
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United States of America Patent
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-
Jul 6, 1993
Grant Date -
N/A
app pub date -
Jun 17, 1991
filing date -
Jun 17, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An athletic shoe sole comprising a midsole and an outsole. The midsole has a longitudinally concave shaped ball portion which is thinnest along a transverse metatarsal line, such that a longitudinal concavity is formed facing downwardly and crossing the entire width of the ball portion of the midsole. The outsole has a longitudinally convex shaped ball portion which is thickest along the transverse metatarsal line, such that a longitudinal convexity is formed facing upwardly and crossing the entire width of the ball portion of the outsole. The longitudinally convex shaped ball portion of the outsole has numerous conical shaped hollow tread members aligned in a plurality of transverse rows, and two longitudinally elongated edgewise non-hollow tread members each having a plurality of transverse grooves.
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