Shoe outer sole, method for its manufacture, and mold therefor

Details Shoe outer sole, method for its manufacture, and mold therefor Shoe outer sole, method for its manufacture, and mold therefor

2005-01-18

2005-01-18

Kavanaugh, Ted (Department: 3728)

Boots, shoes, and leggings

Soles

Cushion

C036S027000, C036S028000

Reexamination Certificate

active

06843000

ABSTRACT:
Outer sole for shoe has midsole formed from two conjoined midsole pieces, and bottom outsole piece. At least midsole pieces are formed by injection molding. Midsole has plurality of through holes therein to provide cushioning capability. Certain embodiments include elements for maintaining and restoring cushioning capability of through holes when subjected to compressive, deforming forces. Through holes vary in size, shape, and pattern of arrangement to provide different cushioning capabilities.

REFERENCES:
patent: 3087262 (1963-04-01), Russell
patent: 4445284 (1984-05-01), Sakutori
patent: 4638577 (1987-01-01), Riggs
patent: 4753021 (1988-06-01), Cohen
patent: 4754559 (1988-07-01), Cohen
patent: 4881329 (1989-11-01), Crowley
patent: 5461800 (1995-10-01), Luthi et al.
patent: 5577334 (1996-11-01), Park
patent: 5822886 (1998-10-01), Luthi et al.

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