Shock-absorbing cushion
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United States of America Patent
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-
Sep 23, 1997
Issued Date -
N/A
app pub date -
Nov 15, 1996
filing date -
Feb 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Shock absorbing cushion structures are disclosed which are formed by upper and lower sheets peripherally sealed and formed to define a series of intercommunicating air chambers therebetween. In particular there is disclosed a shock absorbing shoe insole of this kind in which a flowable substance such as a medicinal or deodorant power is contained in the air chambers. The upper sheet is provided with an array of pinholes through which the flowable substance is released into a shoe by the application of pressure to the insole during walking. Also disclosed is a technique for making insoles in a range of sizes from a single molding.
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