Article of footwear incorporating a fluid system
First Claim
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1. An article of footwear, comprising:
- a first sheet of thermoplastic elastomeric film and a second sheet of thermoplastic elastomeric film, wherein said first sheet is welded to said second sheet to form an inflation mechanism and an inflatable bladder, wherein both said inflation mechanism and said inflatable bladder are formed by both said first sheet and said second sheet and wherein said inflation mechanism is monolithic with said inflatable bladder;
an air inlet fluidly connected to said inflation mechanism for introducing ambient air outside of said inflatable bladder to said inflation mechanism; and
a valve, wherein said inflation mechanism is fluidly connected to said inflatable bladder through said valve, wherein said valve permits air flow from said inflation mechanism to said inflatable bladder, and wherein said valve limits air flow from said inflatable bladder to said inflation mechanism;
wherein said inflation mechanism is positioned so as to be operated by the downward pressure of a wearer'"'"'s foot.
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Abstract
An article of athletic footwear having an air-filled bladder disposed in a sole structure is disclosed. The air-filled bladder is in fluid communication with ambient air through a filter that permits ambient air to enter the bladder but restricts liquids and particulates from entering the bladder. In operation, the filter and bladder may be portions of a bladder system that absorb shock when the footwear contacts a playing surface. Alternatively, the filter and bladder may be portions of a bladder system that ventilates the interior of the footwear. The filter may be formed of a material such as expanded polytetrafluoroethylene that is attached to a carrier.
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1 Claim
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1. An article of footwear, comprising:
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a first sheet of thermoplastic elastomeric film and a second sheet of thermoplastic elastomeric film, wherein said first sheet is welded to said second sheet to form an inflation mechanism and an inflatable bladder, wherein both said inflation mechanism and said inflatable bladder are formed by both said first sheet and said second sheet and wherein said inflation mechanism is monolithic with said inflatable bladder; an air inlet fluidly connected to said inflation mechanism for introducing ambient air outside of said inflatable bladder to said inflation mechanism; and a valve, wherein said inflation mechanism is fluidly connected to said inflatable bladder through said valve, wherein said valve permits air flow from said inflation mechanism to said inflatable bladder, and wherein said valve limits air flow from said inflatable bladder to said inflation mechanism; wherein said inflation mechanism is positioned so as to be operated by the downward pressure of a wearer'"'"'s foot.
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Specification