发明名称 |
Internal vibrator supplied with current from a transformer |
摘要 |
An internal vibrator for compacting concrete and having a vibrator housing in which is disposed an eccentric mass and an electric motor for driving the eccentric mass. The electric motor is supplied via a power supply cord with electric current having a frequency that is greater than line frequency. The vibrator comprises a switch for controlling the electric motor, and also includes a transformer for supplying to the electric motor the electric current having the frequency that is greater than line frequency. The switch and the transformer are combined in a common housing to form a miniaturized built-in unit on the power supply cord.
|
申请公布号 |
US6084327(A) |
申请公布日期 |
2000.07.04 |
申请号 |
US19930175718 |
申请日期 |
1993.12.30 |
申请人 |
WACKER WERKE GMBH & CO. KG |
发明人 |
STEFFEN, MICHAEL |
分类号 |
E04G21/08;(IPC1-7):H02K11/00 |
主分类号 |
E04G21/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|