Bellowed chamber for a shoe
US7409780B2 · kind B2 · utility
37Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2004 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Nov 4, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B21/285
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An inflatable cushioning device, and a process for making it, having a fluid-tight, enclosed area that is bordered by a first generally flat surface, a second generally flat surface and at least one bellowed surface, such that the bellowed surface will collapse when a force is applied. The cushioning device may include an inflation mechanism for selectively introducing air into the enclosed area. The cushioning device can be used in an athletic shoe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.