Multi-deck screening assembly
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United States of America Patent
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Aug 14, 2018
Grant Date -
Dec 7, 2017
app pub date -
May 31, 2017
filing date -
Jun 1, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A multi-deck screening assembly includes upper and lower screen decks, each having first and second deck sections. The upper deck's first deck section has first-size grading apertures, and its second deck section is downstream of the first deck section with second-size grading apertures larger than the first-size apertures. The lower deck's first section has third-size grading apertures and its second section is downstream of its first section with fourth-size grading apertures larger than the third-size apertures. A gap between the lower deck's first and second sections allows oversize material from the lower deck's first section to pass through to a first collection region. A diverter is positioned between the upper and lower decks and over the gap, whereby material from the upper deck collected on the diverter passes onto the lower deck's second section, thereby preventing undersize material that passes through the upper deck from passing directly through the gap.
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Cited Art Landscape
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