Footwear sole component and production method
US5657556A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1996 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Nov 12, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43C15/161
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Lightweight, inexpensive footwear sole components (14, 18), comprising a midsole portion (14) and an outsole portion (18), are formed by a method that eliminates the need for adhesively attaching the two portions to each other, and comprises the steps of 1) Forming the midsole portion (14) to have a lower surface (17) and at least one opening (26) extending into it through the lower surface (17); 2) Forming the outsole portion (18) on the lower surface (17) of the midsole portion (14) such that the outsole portion has an upper part (28) extending into the opening (26) in the midsole portion; and, 3) Forming a mechanical attachment device (22) between the outsole portion (18) and the midsole portion (14) on an upper end (19) of the outsole portion (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.