Method for producing a shoe sole
US4309376A · kind A · utility
45Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1979 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Jul 5, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D35/122
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method for producing a shoe sole, which comprises forming in a bottom surface of a cavity of an outer mold of the sole forming mold a groove for forming a ridge which is to divide said bottom surface into at least two sections, charging a sole forming materials into said cavity such that respective materials will be supplied into the adjoining two sections, closing the cavity with the press plate of said mold, and then compressing and heating the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.