Boots – shoes – and leggings – Soles – Rubber
Patent
1987-06-22
1988-05-03
Kee Chi, James
Boots, shoes, and leggings
Soles
Rubber
36 30R, 36 59C, 36114, 36129, D 2320, A43B 1304, A43B 1318, A43B 1326, A43B 500
Patent
active
047411147
ABSTRACT:
A shoe sole including an outer sole of substantially uniform thickness and a midsole. The midsole has peripheral portions that are relatively thick compared to its central portion which is relatively thin. The lower surface of the midsole is preferably configured as a concavity. The outer sole has a top surface which is connected to the concave lower surface of the midsole to define, along with the midsole, a general lateral concavity for the shoe. The lower surface of the outer sole includes tread members. The outermost tread members, outer sole and midsole cooperate to support the relatively thin central portion of the midsole in a cantilever fashion. Upon ground impact, the lower extremities of the tread members are urged resiliently upwardly and outwardly, and the relatively thin central portion flexes downwardly to provide cushioning for the foot of the wearer.
REFERENCES:
patent: 3100354 (1963-08-01), Lombard et al.
patent: 3290801 (1966-12-01), Bente
patent: 4043058 (1977-08-01), Hollister et al.
Avia Group International Inc.
Chi James Kee
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