Shoe with pneumatic inflating device
September 30, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1313924 2558973 Footwear construction Footwear with snorkel ventilation Shoe comprising a system for supplying air to the interior of the shoe Hydraulic fit system for footwear Slip resistant footwear Sport shoe with pneumatic inflating device Removable pressure-adjustable shock-absorbing cushion device with an inflation pump for sports goods Shoe sole having compressible shock absorbers InventorApplicationNo. 954568 filed on 09/30/1992US Classes:36/28, Cushion36/29PneumaticExaminersPrimary: Foster, Jimmy G.Assistant: Kavanaugh, Ted Attorney, Agent or FirmForeign Patent References
International ClassA43B 013/20AbstractA pneumatic inflating device disposed within the sole of a shoe includes a plurality of pairs of oppositely disposed hollow chambers within the sole of the shoe, a plurality of inflatable air cells, each air cell disposed within one of said hollow chambers, a pump assembly attached to the shoe, a plurality of tubes connecting the air cells to the pump assembly, means for restricting air flow out of the air cells, and means for releasing air from the pneumatic inflating device. The means for restricting air flow out of the air cells includes a nipple disposed at the end of each branch of the tubes. The means for releasing air from the pneumatic inflating device includes a release valve. The pneumatic inflating device can further include means for locking the pump assembly in a closed position.Other References
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