Pneumatic run-flat tire
US7448422B2 · kind B2 · utility
4Cited by
9References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Jul 4, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10864
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic run-flat tire has a bead configuration wherein the axially inner end is radially inward of the axially outer end of the bead. The sidewall of the tire, from the bead region to the upper sidewall is reinforced to form a pillar support in the sidewall. The bead configuration and the pillar reinforcement enable the tire to lock itself onto a tire rim during low pressure operation and be self-supporting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.