Soil compactor having direct drive
US9175447B2 · kind B2 · utility
3Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A soil compacting device has an upper mass and a lower mass that is coupled to the upper mass by a spring device and that has a soil contact element. In addition, a drive is provided for producing a working movement of the soil contact element. The drive has an electric motor, a drive frequency of a drive movement produced by the electric motor being equal to a frequency of the working movement of the soil contact element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.