Process and apparatus for selectively gathering lightweight low density objects
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United States of America Patent
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Feb 18, 1992
Grant Date -
N/A
app pub date -
Mar 8, 1991
filing date -
Mar 8, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A vacuum system is provided for selectively removing lightweight low density objects such as loose polystyrene packing material referred to as 'peanuts' or 'popcorn' from shipping cartons using a very low pressure vacuum which withdraws only the packing material and leaves the packed items in the carton. A low pressure vacuum is created in an elongated cylindrical conduit by directing air pressure from an annular plenum chamber into streams of air flowing through a series of spaced apart holes in a wall of the conduit toward the downstream end of the condudit. The conduit has an intake hose connected to its upstream end and a collection container at its downstream end. The packing material is drawn into the intake hose and through the conduit to the collection container.
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