Method and apparatus for filling a tire and wheel assembly with a closed cell polyurethane foam
US7614865B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2008 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Oct 31, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10378
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for filling a tire and wheel assembly cavity, that can be a large tire and wheel, with a flexible closed cell polyurethane foam that is passed as a mixture of reacting constituents through a fill hose whose end is fitted between the tire bead and wheel rim, and after filling and removal of the fill hose end, providing for lifting and maintaining the tire bead in engagement with the wheel rim as the reacting materials complete their reaction, uniformly filling the tire and wheel cavity with the flexible closed cell polyurethane foam that has expanded and urges the tire bead into sealing engagement with the wheel rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.