High-speed indexing feed screw conveyer
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United States of America Patent
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Jul 2, 1985
Grant Date -
N/A
app pub date -
Feb 13, 1984
filing date -
Feb 13, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vertical-feed conveyor for cylindrical objects and the like utilized twin counter-rotating helical feed screws. The thread of the feed screws is shaped so as to create conveyance troughs which are closely dimensioned to the object to be moved. The variable pitch of the screws creates zones of acceleration, deceleration and dwell so that the objects may be sequentially delivered to predetermined indexing stations where various processes may be performed upon the objects such as; internal spray coating, capping, electronic non-destructive testing, etc. The points of dwell along the feed screws are achieved by the shape of the radial sidewalls of the feed screws which at those points extend part way around the screw in radial planes of the screw.
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