Composite continuous feeder
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United States of America Patent
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Jul 9, 2013
Grant Date -
Feb 14, 2013
app pub date -
Aug 12, 2011
filing date -
Aug 12, 2011
priority date (Note) -
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Abstract
A composite continuous feeder is arranged above a growth furnace and comprises a primary feeder and a secondary feeder. The primary feeder includes a feeding chamber, a first material holder holding a plurality of material bits and an elevator mechanism. The elevator mechanism is coupled to the feeding chamber and first material holder, and used to lift or lower the first material holder in the feeding chamber. The secondary feeder includes a second material holder also holding a plurality of material bits, a buffering discharger and a material discharging guide tube. The buffering discharger is arranged at the outlet of the second material holder to receive the material bits output therefrom. The material discharging guide tube discharges the material bits into the growth furnace. By using the primary and secondary feeders, the invention can apply to mono-crystal and poly-crystal growth furnaces and effectively control material feeding amount and speed.
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