Slitted tire tread
US4353402A · kind A · utility
23Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1979 |
| Grant date | Oct 12, 1982 |
| Priority date | — |
| Expiry date | Aug 23, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Tire treads are designed to be receptive to the technique of cutting parallel slits therein for the purpose of improving traction and wear life. In order to obtain the advantages of slitting while avoiding cracking and breaking off of tread elements during use, the slit angle, general guides for the tire size and type and slit depth should be chosen within prescribed limits, and additional voids such as shoulder grooves, cross grooves and cross molded voids should be parallel to the slits. Tie bars integral at their ends with tread elements extend across the tread grooves to provide lateral support for the tread elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.