Method for making a shoe sole with different resilient areas
US6884376B2 · kind B2 · utility
1Cited by
5References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 21, 2003 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | May 18, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/0492
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.