Pressure-adjustable shoe bladder assembly
US5253435A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B23/029
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A bladder assembly for an athletic shoe and having at least first and second chambers. The chambers are independently and separately pressure adjustable by the user to conform to different concavity areas of his foot, such as the arch, ankle and metatarsal areas, to thereby enhance fit, comfort and athletic performance. Both chambers are inflatable by the same articulated on-board pump and deflatable by the same on-board depressible plunger. A dial on the lateral side of the upper allows the user to select which of the chambers is to be pressure adjusted, that is, which of the chambers is in pressure communication with the pump and the plunger. When the dial is in a neutral position, accidental inflation or deflation of either chamber is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.