Pneumatic tire having 80 to 105 pitches
US6446689B1 · kind B1 · utility
10Cited by
34References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Aug 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/902
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire having improved snow traction and tread wear, and improved noise and handling properties, has 80 to 105 pitches and a sipe density of 1.0 to 1.1. The tire has a substantially square footprint, and has a footprint shape factor (FSF) of 1.0 to 1.25. The tire has an open central and intermediate region, as compared to the shoulder region, and has lateral groove depths that vary from 50% to 100% of the tread depth, wherein the shallower grooves are disposed toward the central and intermediate regions of the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.