Tread with spaced projections in stone ejecting groove
US4345632A · kind A · utility
36Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Nov 17, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2011/1361
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A heavy duty pneumatic tire having a tread provided on its outer surface with a plurality of circumferential grooves is disclosed. At least one of the circumferential grooves is opened on the tread surface at an open groove width corresponding to 2-8% of tread transverse width, has a groove bottom width substantially equal to the open groove width, and is provided on its groove bottom with plural protrusions separated from the opposed groove walls and at an interval between the adjoining protrusions in the circumferential direction of the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.