Poker vibrator with frequency converter
US6619832B1 · kind B1 · utility
5Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Sep 12, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a poker vibrator for compressing concrete. The poker vibrator comprises a vibrating housing that accommodates an unbalanced mass and an electromotor, an insulating plastic tube that links the vibrating housing to a switch cover, an electric cable that links the switch cover to a connector shell and a frequency converter that supplies the current for the electromotor. The poker vibrator is characterized in that at least parts of the components pertaining to the poker vibrator are arranged in the vibrating housing, the insulating plastic tube or the connector shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.