HYDRAULIC PUMP
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United States of America Patent
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Issued Date -
Dec 14, 2023
app pub date -
Jul 26, 2023
filing date -
Apr 13, 2022
priority date (Note) -
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Abstract
A hydraulic pump may include: a screw including: an internal tubular cavity, and an internal port in fluid communication with the internal tubular cavity; a nut surrounding a longitudinal portion of the screw; and a cylindrical tube fitting within the internal tubular cavity of the screw, the cylindrical tube having a hollow channel that is in fluid communication with the internal tubular cavity of the screw.
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