Controllable vibration generator
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United States of America Patent
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-
Feb 6, 2007
Grant Date -
Feb 12, 2004
app pub date -
Aug 3, 2001
filing date -
Aug 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vibration generator comprises two unbalance shafts, which are positively coupled in a contra-rotative manner and whose relative phrase position can be shifted by a phase shifting device. Each of the unbalance shafts supports a main unbalance mass and a partial unbalance mass that can move in relation thereto. The position of the partial unbalance masses on the respective unbalance shafts can be actively altered within a large range by adjusting devices. The resulting vibration vector generated by the vibration generator can set in a diverse manner with regard to direction and magnitude.
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