Shoe bladder system
US5257470A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1991 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Feb 19, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B23/029
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
For athletic shoes, a custom fit bladder system including first and second separately pressure adjustable chambers for different foot portions. First and second bladder stems communicate with the first and second chambers, respectively. A tension wire bail secures the stems to a tee manifold between them. A bulb pump held on the shoe includes an articulated connector at one end and a flush mounted inlet valve retained at the other end. External barbs on the manifold lock into holes in the connector providing a secure air-tight attachment of the bulb pump to the manifold. A button dial allows the user to select which of the chambers he can inflate by pumping the pump and deflate by pushing a deflation valve disposed in the manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.