Method and system for calculating and reporting slump in delivery vehicles
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United States of America Patent
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May 20, 2014
Grant Date -
Dec 9, 2010
app pub date -
Aug 17, 2010
filing date -
Feb 13, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A system for calculating and reporting slump in a delivery vehicle having a mixing drum 14 and hydraulic drive 16 for rotating the mixing drum, including a rotational sensor 20 configured to sense a rotational speed of the mixing drum, a hydraulic sensor 22 coupled to the hydraulic drive and configured to sense a hydraulic pressure required to turn the mixing drum, and a communications port 26 configured to communicate a slump calculation to a status system 28 commonly used in the concrete industry, wherein the sensing of the rotational speed of the mixing drum is used to qualify a calculation of current slump based on the hydraulic pressure required to turn the mixing drum.
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