Roller
US6857816B2 · kind B2 · utility
23Cited by
20References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/039
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roller is equipped with a pair of crawlers. Each crawler includes a driving wheel detachably attached to a driving shaft. Each crawler also includes a set of driven wheels. Both sets of driven wheels are supported by a connecting member that is detachably attached on a bottom of a body. A roll, which is vibrated only in the perpendicular direction with respect to the ground surface, is attached to the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.