Sole construction for footwear

Details Sole construction for footwear Sole construction for footwear

1983-09-23

1985-11-12

Kee Chi, James

Boots, shoes, and leggings

Soles

Laminated

36 32R, 36 37, 36114, A43B 1314, A43B 1318, A43B 1304

Patent

active

045519307

ABSTRACT:
A sole unit for footwear such as an athletic shoe includes an integral midsole/wedge or a wedge for use with a midsole. The integral midsole/wedge unit and the wedge for use with a midsole both are formed by a shell and an encapsulated core. The shell and core comprise plastic materials which have individual strengths and weaknesses in a shoe construction, yet provide, as a composite improved results in a shock dispersion and memory system. In a second aspect, the integral midsole/wedge is a single density or a two-density unit precompressed from a low density material.

REFERENCES:
patent: 2055574 (1936-09-01), Hartl
patent: 2911973 (1959-11-01), Chieffo
patent: 3742622 (1973-07-01), Dassler
patent: 4128950 (1978-12-01), Bowerman et al.
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patent: 4297796 (1981-11-01), Stirtz et al.
patent: 4297797 (1981-11-01), Meyers
patent: 4302892 (1981-12-01), Adamik
patent: 4316332 (1982-02-01), Giese et al.
patent: 4354318 (1982-10-01), Frederick et al.
patent: 4364188 (1928-12-01), Turner et al.
patent: 4364189 (1982-12-01), Bates

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