Pneumatic tire having improved wear properties
US5824169A · kind A · utility
26Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/03
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire having improved wet traction has lugs containing sipes which change direction within the lug and tie bars in the sipes near each point where the sipes change direction. Siping, and the positioning of tie bars, provide means for minimizing the difference of the principle direction of lug stiffness between individual lugs. Also, a tire of the invention has 4 pitch ratios which are distributed around the tire so that extra large pitches are not located next to small pitches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.