Method for making a shoe sole with different resilient areas

Details Method for making a shoe sole with different resilient areas Method for making a shoe sole with different resilient areas

2005-04-26

2005-04-26

Kuhns, Allan R. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

C222S478000, C264S045100

Reexamination Certificate

active

06884376

ABSTRACT:
A method for making a shoe sole includes step of preparing various types of foamable material; step of making the foamable material into particles; step of preparing a mold having a cavity in which the foamable material is being put; and step of foaming the foamable material in the cavity and obtaining a sole. The foamable material has different resilient coefficients but the same foaming rate so that the sole can be a made by a single foaming process and includes various resilient features.

REFERENCES:
patent: 5141578 (1992-08-01), Yang
patent: 5308420 (1994-05-01), Yang
patent: 5318645 (1994-06-01), Yang
patent: 6319441 (2001-11-01), Yates
patent: 6451865 (2002-09-01), Migchels et al.

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