Pneumatic tire having a unique footprint
US5176766A · kind A · utility
34Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Mar 8, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2011/1213
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A directional pneumatic tire having improved wet traction is provided. The tire has an annular aqua channel and curved lateral grooves to direct water from the footprint to the shoulder area of the tire to help prevent hydroplaning. It has been found that the tire has a unique footprint which appears to characterize its stability. The footprint comprises two substantially trapezoidal contact patches which are oriented base to base and are separated from each other by 10% to 22% of the total tread width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.