Apparatus and methods for transferring and metering granular material
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United States of America Patent
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Aug 23, 1994
Grant Date -
N/A
app pub date -
May 4, 1993
filing date -
May 4, 1993
priority date (Note) -
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Abstract
Methods and apparatus are provided for transferring a metered charge of granular material from a bulk source to an individual receptacle at high speed. The apparatus comprises a nozzle having suction and positive ports, a screen disposed within the nozzle, and suction and positive pressure sources that selectively communicate with the suction and pressure ports to sequentially engage a charge of granular material from a bulk source and then expel the charge of granular material into a receptacle. The apparatus includes a controller for selectively actuating valves connecting the suction and positive pressure ports to the suction and positive pressure sources. Methods of transferring a discrete charge of the granular material from a bulk reservoir to an individual receptacle are also provided.
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