Spring mechanism for power device
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United States of America Patent
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Mar 23, 2021
Grant Date -
Jun 4, 2015
app pub date -
Dec 4, 2014
filing date -
Dec 4, 2013
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A spring mechanism for attaching to a power device drive unit includes a housing connectable to a portion of the power device and a shaft extending through the housing. One end of the shaft is coupled to a workpiece and a bottom member extends from the other end and is positioned adjacent the drive unit. The bottom member includes at least one of a ferromagnetic material and a permanent magnet. The bottom member, shaft and workpiece move upon actuation of the drive unit, and a spring extends laterally outwardly from the shaft between the shaft and the housing. The spring is affixed to one of the shaft and the housing, wherein the spring bends between a deformed position and a return position upon the movement of the bottom member.
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