Shoe with inflatable height-adjustment cushion
August 13, 2016. 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 ReferencesInflatable sole construction Shock-absorbing shoe construction Shoe with sole that includes inflatable passages to provide cushioning and stability Shock absorbing shoe sole and shoe incorporating the same Inflatable sole lining for shoes and boots Variable support shoe Inflatable sole lining for shoes and boots Shoe with pneumatic inflating device Shoe with sole including hollow space inflatable through removable bladder Method for inflating a bladder InventorApplicationNo. 696375 filed on 08/13/1996US Classes:36/97, With adjustment of shoe size36/29, Pneumatic36/35BPneumaticExaminersPrimary: Sewell, Paul T.Assistant: Stashick, Anthony Attorney, Agent or FirmForeign Patent References
International ClassesA43B 013/20A43B 021/28 A43B 007/38 AbstractA cushioned, height-adjustable shoe has a hollow for receiving a wearer's foot, the hollow defined by a base on which the wearer's foot rests and an enclosure surrounding at least a portion of the wearer's foot; and within the hollow, an inflatable bladder associated with the base for lifting the wearer's foot to a degree determined by the amount of inflation. The bladder has a collapsable wall that may include pleats. In one embodiment, the bladder is wedge-shaped with a maximum height along the rear (heel) segment, and is disposed between the sole of the shoe and a soft but relatively thin foot pad so as to be invisible during use. In a second embodiment, the bladder constitutes the sole of the shoe, and once again is is defined peripherally by a set of expandable pleats. The bladder is accessed for inflation by means of a pump located beneath the shoe pad. | |
