Linear drive for vibratory apparatus
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United States of America Patent
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Jan 6, 2009
Grant Date -
Jun 2, 2005
app pub date -
Sep 10, 2004
filing date -
Jan 8, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A three mass vibratory apparatus for processing work material includes a bed defining a transport surface for receiving the objects, an elastic amplifier having a first end connected to the bed and a second end, and a drive base connected to the elastic amplifier second end. A linear actuator is mounted on the drive base and adapted to generate a linear vibratory force that is amplified by the elastic amplifier thereby to move the bed in a vibratory motion, so that the work material moves in response to the vibratory motion of the bed. The bed defines a first mass, the drive base and linear actuator define a second mass, and the reciprocating weight defines a third mass, the first, second, and third masses being isolated from rigid coupling to one another.
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