Bar screen having a reciprocating action
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United States of America Patent
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-
Jun 2, 1992
Grant Date -
N/A
app pub date -
Aug 7, 1989
filing date -
Aug 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bar screen (10) for sizing wood chips which includes a plurality of parallel bars (12--12) supported at their respective ends (14, 16) in such a manner and driven in such a manner that each bar moves both longitudinally and vertically. Two alternating sets of bars (12--12) are included, one set being 180.degree. removed in position relative to the other set. The speed and movement of the bars (12--12) is such that the wood chips are tipped up to a vertical orientation and supplied with such a momentum that the chips break contact with the bars and encounter a slot between adjacent bars in their thickness dimension.
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