Device for generating mechanical vibration
US6717379B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 18, 2001 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Sep 18, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/074
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention concerns a device where creation of mechanical vibration is made with a system (1) of two or more rotating eccentrics (10). Each eccentric (10) is rotated by an individually controlled motor (11) and the angle position of each eccentric (10) is read by an angle sensor (12). With a control and monitoring system (5), the rotation frequency, direction of rotation and phase position of each eccentric (10) can be controlled. By choosing a number of eccentrics, mass of the eccentrics, rotation frequency, direction of rotation and phase position, a force vector diagram of suitable form, in space and time, can be generated. The invention is intended primarily for use in appliances for dynamic compaction of various materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.