Unstacker for unstacking items conveyed in a bulk stream
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 10, 2002
Grant Date -
Jun 27, 2002
app pub date -
Dec 26, 2000
filing date -
Dec 26, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An unstacking apparatus includes a feed conveyor for feeding stacks of items, and a decline unstacking section including at least first and second declined conveyors arranged in series. A stack of items being transferred from the feed conveyor to the first declined conveyor tilts forwardly to cause the items to slide forwardly off one another into a shingle arrangement on the first declined conveyor. The second declined conveyor includes an upstream end which is offset upwardly relative to a downstream end of the first declined conveyor, causing items to travel upwardly in order to pass from the first to the second declined conveyors. The second declined conveyor travels at a faster speed than the first declined conveyor for at least partially de-shingling the items. A transfer conveyor conveys items to an incline unstacking section which includes at least first and second incline conveyors arranged in series. A stack of items being transferred from the transfer conveyor to the first inclined conveyor tilts rearwardly to cause the items to slide rearwardly off one another into a shingle arrangement on the first inclined conveyor. The second inclined conveyor includes an upstream end which is offset downwardly relative to a downstream end of the first inclined conveyor, causing items to descend in order to pass from the first to the second inclined conveyors. The second inclined conveyor travels at a faster speed than the first inclined conveyor for at least partially de-shingling the items.
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