Microprocessor control of bladders in footwear soles with internal flexibility sipes
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United States of America Patent
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Aug 18, 2015
Issued Date -
N/A
app pub date -
Feb 15, 2013
filing date -
Nov 22, 2004
priority date (Note) -
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Abstract
A sole section adapted for use in a sole of a shoe or other footwear which includes at least a bottom sole portion. The sole section includes at least two inner bladders each of which contains a fluid, and at least a part thereof is located in a single frontal plane cross-section of the sole. The sole section also includes a duct and/or valve providing fluid communication between the inner bladders, an electronic control system including a microprocessor that controls the fluid communication and an outer bladder. The inner bladders are inside the outer bladder and separated from the outer bladder at least in part by an internal sipe formed by a portion of an inner surface of said outer bladder and a portion of an outer surface of each of said inner bladders. The surface portions of the sipe oppose each other and can slide relative to each other.
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