Devices with an internal flexibility slit, including for footwear
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United States of America Patent
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Mar 27, 2012
Grant Date -
Nov 9, 2006
app pub date -
Nov 21, 2005
filing date -
Nov 22, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to all forms of footwear and orthotics, as well as any other products benefiting from increased flexibility, better resistance to shock and shear forces, and stable support. More specifically, the invention incorporates a unitary integral component with at least one internal (or mostly internal) sipe, including slits or channels or grooves and any other shape, including geometrically regular or non-regular, such as anthropomorphic shapes, into a large variety of products using materials known in the art or their current or future equivalent. Still more specifically, the internal sipe component provides improved flexibility to products utilizing them, as well as improved cushioning to absorb shock and/or shear forces, while also improving stability of support, and therefore the siped devices can be used in any existing product that provides or utilizes flexibility, cushioning, or stability.
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