Method and system for a hydraulic cylinder
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United States of America Patent
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Jan 16, 2018
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N/A
app pub date -
Mar 3, 2014
filing date -
Mar 3, 2014
priority date (Note) -
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Abstract
A system and method of operating a scissors lift assembly are provided. The system includes a hollow piston rod including an internal fluid reservoir, a cylinder body that is coaxial with and at least partially surrounding the hollow piston rod, and a fluid pump in flow communication with the reservoir through a suction channel extending from the internal fluid reservoir though a transfer tube to a suction port of the fluid pump. The transfer tube is coaxial with the piston, the piston rod, and the cylinder body and a discharge port of the fluid pump is in flow communication with an extension pressure chamber.
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