Extended riffle structure for a dry washer
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United States of America Patent
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Oct 31, 2017
Grant Date -
Aug 25, 2016
app pub date -
Jan 21, 2016
filing date -
Jul 18, 2014
priority date (Note) -
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Abstract
A generally elastic riffle assembly useful with a dry washer is provided with a frame that is receivable within the washer opening through which the mined particulates descend while the washer is agitated to separate the denser particulates and a set of inclined transverse riffles aligned across the frame to form wedge shaped transverse cavities in which the descending particulates are collected. Each of the riffles further include a plurality of generally vertical posts attached to their elevated edges which assist in the separation of the particulate flow and in setting off of the various modes of elastic motion of their corresponding riffle.
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