Insert with variable cushioning and support and article of footwear containing same
US7448150B1 · kind B1 · utility
53Cited by
153References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | May 27, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B21/285
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention is a support and cushioning system for an article of footwear. The system includes a resilient insert disposed within the sole of the shoe including several fluidly interconnected chambers. The chambers include first chambers disposed in the forefoot area of the sole and second chambers disposed in the heel portion of the sole. In one embodiment, the resilient insert is air inflatable using an on-board inflation mechanism disposed in the sole, wherein the resilient insert remains generally rigid when not inflated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.