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US 2013/0199054 A1Published application
Training Footwear
AssigneeReebok International Ltd.
InventorsPaul E. Litchfield, William McInnis, Michael Andrews, Kevin Leary, Ricardo Vestuti, Brian Christensen, Paul Shinney
Life of this patent
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Abstract
An article of footwear includes a sole having a forefoot portion, a heel portion and an outsole having a bottom surface including a primary ground contacting surface. The bottom surface of the outsole includes a forefoot bulge and a heel bulge which provide the footwear with controlled instability for providing dynamic conditioning of the wearer's muscles during the gait cycle.
Claims15
An article of footwear, comprising:
- a sole including:
- an outsole having a bottom surface,
- a midsole having a bottom surface including a plurality of cavities, and
- an intermediate sole disposed between the midsole and the outsole, the intermediate sole comprising a resilient insert having a forefoot portion and a heel portion,
- wherein the resilient insert includes at least one forefoot compressible chamber and a plurality of heel compressible chambers, wherein the plurality of cavities of the midsole bottom surface correspond with the chambers of the resilient insert,
- wherein the plurality of cavities accommodate a first portion of a volume of the chambers of the resilient insert, and
- wherein a second portion of the volume of the chambers of the resilient insert extends outside of the cavities in the midsole such that the bottom surface of the outsole has bulges that correspond with the chambers of the resilient insert.
4 more elements
Dependencies are inferred from the claim text.