Plastic bellows inserted into soles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 18, 2003
Grant Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Oct 21, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plastic bellow system inserted into the sole of a shoe. The system having a first pair and a second pair of side-by-side plastic bellows in the forward portion and the rear portion of the shoe sole. The bellows placed in hollows formed in a midsole. The first pair of bellows having two convolutions with an opening formed in the lower convolution. The second pair of bellows having three convolutions with an opening formed in the lower convolution. A pneumatic valve associated with each bellows and the exterior of the midsole. The user can modify foot position by operating the valve of each bellows of the first and second pair of plastic bellows to inflate or deflate each bellows to thereby modify the volume of each bellows.
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