Sole structure for footwear

Details Sole structure for footwear Sole structure for footwear

1989-12-11

1991-09-03

Sewell, Paul T.

Boots, shoes, and leggings

Boots and shoes

Ventilated

36 3B, 36 25R, 36 30R, 36103, A43B 706, A43B 1300, A43B 1312

Patent

active

050440969

ABSTRACT:
The sole structure comprises a lower part with a tread, preferably made of rubber or other synthetic material, and having holes formed therein which traverse its thickness. The lower part is covered by a membrane made of microporous, waterproof material which permits transpiration. The structure is completed by an upper part adapted for having a foot rested thereon and being made of rubber or other synthetic material. Holes which traverse the thickness of the upper part are provided at the portion thereof affected by the membrane.

REFERENCES:
patent: 878039 (1908-02-01), Bullard
patent: 3205595 (1965-09-01), Funck
patent: 4292746 (1981-10-01), Delaney
patent: 4463505 (1984-08-01), Duclos
patent: 4502234 (1985-03-01), Schaefer et al.
patent: 4551930 (1985-11-01), Graham et al.
patent: 4656760 (1987-04-01), Tonkel et al.
patent: 4899465 (1990-02-01), Bleimhofer et al.

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