Air cushion shoe sole

Details Air cushion shoe sole Air cushion shoe sole

1985-10-04

1987-06-09

Kee Chi, James

Boots, shoes, and leggings

Soles

Cushion

36 3B, 36 44, A43B 1320

Patent

active

046709959

ABSTRACT:
An air cushion shoe sole which is preferably blow molded of elastomeric material and has at least one cavity which in cross-section is substantially rectilinear. The cavity has a number of depressions and each cavity has an air valve for introducing a shock absorbing material, namely gas, liquid, or a combination thereof into that cavity. Each air valve has means in it for automatically bleeding off a portion of the shock absorbing material introduced into the cavity once the pressure of that material reaches a predetermined level.

REFERENCES:
patent: 616112 (1898-12-01), Kennedy
patent: 1514468 (1924-11-01), Schope
patent: 2080469 (1937-05-01), Gilbert
patent: 2600239 (1952-06-01), Gilbert
patent: 3005272 (1961-10-01), Shelare et al.
patent: 3754339 (1973-08-01), Terasaki
patent: 4219945 (1980-09-01), Rudy
patent: 4263728 (1981-04-01), Frecentese

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