Extended riffle structure for a dry washer
OwnerRobert Rieckinventor
Life of this patent
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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.
Claims5
A riffle assembly useful in separating the denser particulates from a particulate stream descending through an inclined trough, comprising:
- a frame including a pair of substantially parallel side pieces dimensioned for conforming receipt within said trough, each said side piece being connected to a respective end of a transversely aligned elongate riffle provided with a raised leading edge directed in cantilever towards said particulate stream in a direction substantially opposite to the descent thereof through said trough and an oppositely directed trailing edge;
- and
- a plurality of posts mounted substantially orthogonally on said leading edge to project beyond said frame.
Dependencies are inferred from the claim text.