Boots – shoes – and leggings – Boots and shoes – Ventilated
Patent
1997-06-10
1998-10-06
Patterson, M. D.
Boots, shoes, and leggings
Boots and shoes
Ventilated
36 28, 36 29, A43B 2307
Patent
active
058159495
ABSTRACT:
A footwear sole insert with a plurality of downwardly extending pumping channels. The pumping channels extend transversely across the insert and include opposite longitudinal edges that simultaneously undulate toward and away from each other to provide the channels with alternating wide and narrow portions. The channels are positioned such that the narrow portions of one channel are generally aligned with the wide portions of the adjacent channels, and vice versa. Also, adjacent channels are separated from each other by an undulating, tapered recess that is narrowest at the bottom surface of the insert.
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Photograph of AVIA shoe.
Photograph of Reebok shoe.
Photograph of Cons. shoe.
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