Tread stiffening for two ply runflat tire
US6536495B1 · kind B1 · utility
14Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2001 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Feb 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10873
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A two-ply radial runflat tire having a belt structure, a ply structure, two inextensible beads and two wedge-insert reinforced sidewalls. The outer ply is reinforced by high-modulus, light-weight aramid. The aramid reinforcement material of the outer ply is clamped around the beads. The outer ply is prestressed in tension during manufacture of the tire. The resultant tire is light in weight and resists upward buckling of the tread during runflat operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.