Boots – shoes – and leggings – Soles – Spring heel
Reexamination Certificate
2005-05-03
2005-05-03
Kavanaugh, Ted (Department: 3728)
Boots, shoes, and leggings
Soles
Spring heel
Reexamination Certificate
active
06886274
ABSTRACT:
A sole assembly for an article of footwear comprises a sole having a heel region and a ball region. A first multi-turn wave spring disposed within the sole comprises an upper turn and a lower turn. The upper turn is in pivotal contact with the lower turn to define a first side and an opposing second side of the multi-turn wave spring. Compression of the first side causes expansion pressure on the second side and compression of the second side causes expansion pressure on the first side to provide cushioning and energy return responsive to a rolling footstrike.
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Krafsur David S.
LeVert Francis E.
Kavanaugh Ted
Pitts & Brittian P.C.
Shoe Spring, Inc.
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