Footwear having improved shock absorption

Details Footwear having improved shock absorption Footwear having improved shock absorption

1982-09-28

1984-05-08

Schroeder, Werner H.

Boots, shoes, and leggings

Soles

Cushion

36 28, 36 43, A43B 1318, A43B 1320, A43B 1340

Patent

active

044466340

ABSTRACT:
Footwear having improved shock absorption in a shoe having a heel and box portion, a first flat elastomeric bladder supported by the shoe heel portion to bear the weight of the heel of the foot of a user, an elastomeric bladder portion supported by the shoe box portion to bear the weight of the ball portion of the foot of a user, a conduit connecting the first and second bladders, and a valve in the conduit permitting a selectable rate of flow of fluid between the bladders.

REFERENCES:
patent: 1148376 (1915-07-01), Gay
patent: 3225463 (1965-12-01), Burnham
patent: 3795994 (1974-03-01), Ava
patent: 4009528 (1977-03-01), Villari, Jr. et al.
patent: 4129951 (1978-12-01), Petrosky
patent: 4358902 (1980-04-01), Cole et al.

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