Material separators
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 24, 2020
Grant Date -
Nov 7, 2019
app pub date -
Jul 18, 2019
filing date -
Jul 18, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The disclosure features material separators for screening excavated material (e.g., rocks from soil.) In some implementations the materials separators include (a) a supporting frame; (b) a screening surface mounted at an incline on the supporting frame, the screening surface comprising a plurality of fixed bars that are attached to the frame in a manner to resist upward movement, and a plurality of shift bars that are attached to the frame at their upper and lower ends, in a manner to allow upward movement; and (c) a shift bar actuator, positioned between the upper and lower ends of the shift bars, the shift bar actuator being configured to impart a two-stage movement to the shift bars, whereby during a first stage the upper ends are first displaced vertically, and during a second stage the lower ends pivot upward about the upper ends.
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