Self-ventilating footwear
US6044577A · kind A · utility
27Cited by
38References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B7/082
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A unitary pumping chamber that removes excess heat and moisture from within the footwear to the footwear exterior. The pumping chamber displaces an approximate air volume of 100 cubic centimeters. The placement of the pumping chamber above the midsole but below the foot-enclosing upper allows tension forces generated from flexion of the foot to reinflate the pumping chamber without addition mechanical devices. In addition, the performance of the midsole is not affected because the pumping chamber is not embedded within the midsole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.