Variable vibratory mechanism
US6769838B2 · kind B2 · utility
9Cited by
24References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Dec 29, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18552
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vibratory mechanism includes first and second eccentric weights connected to a gearbox. The gearbox includes an inner shaft, an outer shaft and first and second planetary gear sets. The first and second planetary gear sets are connected to a motor that drives the first and second eccentric weights during operation via the inner shaft and outer shaft respectively. A phase control device is operatively connected to the second planetary gear set to index the second eccentric weight relative to the first eccentric weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.