Variable vibratory mechanism
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United States of America Patent
Stats
-
Aug 3, 2004
Grant Date -
May 1, 2003
app pub date -
Oct 31, 2001
filing date -
Oct 31, 2001
priority date (Note) -
In Force
status (Latency Note)
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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.
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