Auxetic soles with corresponding inner or outer liners
US9554620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2437/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A material that includes at least one layer made of an auxetic structure and articles of footwear having soles comprising the materials. When the material is under tension, it expands in both the direction under tension and in the directional orthogonal to the direction under tension. The articles of footwear have soles that have at least one layer made of a material that has a pattern of sole elements with apertures. The sole elements have may rotate with respect to each other when the sole is under lateral or longitudinal tension, thus increasing the lateral and longitudinal dimensions of the sole. One or more auxetic or flat liners may be used to prevent entry of debris into the apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.