PISTON LIMIT SENSING FOR FLUID APPLICATION
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United States of America Patent
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Issued Date -
Mar 7, 2019
app pub date -
Sep 6, 2018
filing date -
Sep 6, 2018
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Abstract
A liquid delivery system includes a source of hydraulic fluid and a hydraulic cylinder fluidically coupled to the source of hydraulic fluid and having a hydraulic piston movable between first and second limit positions. The liquid deliver system includes a rod connected to the piston and extending out of the hydraulic cylinder and a sensor device located outside the hydraulic cylinder and configured to sense a position of the rod and to generate a signal indicating the sensed position. The liquid delivery system includes a liquid cylinder comprising a liquid piston, operably driven by the rod, to pump a liquid along a flow path to a fluid applicator.
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