Integrated ball screw linear actuator
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United States of America Patent
Stats
-
Oct 27, 2020
Grant Date -
Apr 11, 2019
app pub date -
Mar 23, 2017
filing date -
Mar 23, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A linear actuation screw having a first end portion, a second end portion on an opposite side as the first end portion, and a sloping intermediate portion between the first end portion and second end portion. The first end portion has a threaded outer wall having a generally constant first diameter over at least a portion of its length and is configured to advance a nut or a sliding member along at least a portion of the first end portion. The second end portion has a threaded outer wall having a generally constant second diameter that is different from the first diameter and is configured to receive a motor fastening nut around it in order to secure the linear actuation screw to a motor. The sloping intermediate portion includes an outer wall that is generally smooth and continuous over at least a majority of the area of the outer wall.
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