Shoe having an inflatable bladder
US7047670B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jan 31, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87394
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An article of footwear including a sole and an upper with an exterior and interior surface, and one or more bladders which comprises at least one of the exterior or interior surfaces of the upper. The bladder comprising sheets of polyurethane or polyester film attached together to form an airtight seal. The article of footwear also includes a inflation mechanism for selectively introducing air in the one or more bladders. The inflation mechanism is located under the foot of the wearer to be activated by the normal action of the wearer to inflate the one or more bladders. The article of footwear may also include an assembly for connecting several tubes to one under foot inflation mechanism. The article of footwear may also include inflatable laces that are inflated by an underfoot inflation mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.