Shock absorbing outsole for footwear
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1991
Grant Date -
N/A
app pub date -
Feb 12, 1990
filing date -
Feb 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An outsole for an item of footwear. The outsole is provided with a lower surface having a central portion and a peripheral portion. Also provided are a plurality of resilient shock absorbing strike plates which extend from, and are disposed about, the peripheral portion to define a central cavity disposed below the central portion. Each strike plate has an inwardly sloped wall adjacent the central concavity. This sloped wall is disposed at an obtuse angle to the central portion. Also provided is an elastic membrane connecting a plurality of the strike plates and extending through the central concavity. The membrane has a stiffness less than that of one of the strike plates to which it is connected.
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