Method and apparatus for separating aggregate for a concrete topping slab
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United States of America Patent
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-
Nov 28, 2023
Grant Date -
Apr 20, 2023
app pub date -
Dec 8, 2022
filing date -
May 27, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A base supports an inclined screen having a uniform mesh selected to remove larger aggregate from a first cement mixture to form a second cement mixture that passes through the screen. A powered vibrator vibrates the screen to separate the concrete mixtures and larger aggregate. Springs and/or dampers in support legs isolate the vibrating screen from the base. A guide frame on the top surface of the screen guides the first concrete mixture along the screen and guide the separated aggregate out a bottom opening into an aggregate container. A support frame on the bottom surface of the screen stiffens the screen to help support the weight of the concrete. A concrete container, preferably wheeled, is below the screen to collect the second concrete mixture and move it to its use location.
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