Material screening apparatus with multi-mode screen box
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United States of America Patent
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Mar 29, 2016
Grant Date -
Aug 13, 2015
app pub date -
Feb 5, 2015
filing date -
Feb 13, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A material screening apparatus is adaptable between a reduced-bearing mode and an additional-bearing mode. The apparatus comprises a screen box coupled to a frame and comprising at least one screen deck. A rotatable shaft is coupled to the screen box for imparting vibrational and/or oscillatory motion to the screen deck(s). Drive means imparts rotational motion to the shaft and a first set of bearings couples the shaft to the screen box. In the additional-bearing mode only, a second set of bearings couples the shaft to the frame. Changing between modes allows the screening characteristics of the apparatus to be adjusted.
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