Shoe sole construction

Details Shoe sole construction Shoe sole construction

1988-02-16

1990-02-06

Kee Chi, James

Boots, shoes, and leggings

Soles

Laminated

36 31, 36 32R, 36 59R, 36114, D 2320, A43B 1312, A43B 1304, A43B 1318, A43B 500

Patent

active

048979368

ABSTRACT:
The shoe sole (12) includes an insole (18), an outsole (16) and a midsole (20). The outsole includes openings (28, 30) at the ball of the foot and the heel of the foot and the midsole, of EVA material, is provided with cavities (46, 48) receiving polyurethane inserts (50, 52) disposed concentrically with respect to associated outsole openings. The inserts are larger in diameter than the outside openings and include a domed central portion (58) projecting through said openings.

REFERENCES:
patent: D290660 (1987-07-01), Selbiger
patent: 2101761 (1937-12-01), Stagl
patent: 4266349 (1981-05-01), Schmohl
patent: 4316335 (1982-02-01), Giese et al.
patent: 4680875 (1987-07-01), Danieli

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