Actuator cylinder with mechanism to reduce stiction
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United States of America Patent
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-
Mar 17, 1998
Grant Date -
N/A
app pub date -
Nov 6, 1996
filing date -
Nov 6, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linear actuator cylinder reduces the stiction otherwise present during initiation of rod extension or retraction. The actuator cylinder includes a cylinder assembly having a piston that slides longitudinally through a cylinder barrel. A rod is connected to the piston and extends from the cylinder barrel. A rotator mechanism is connected to the rod to rotate the piston and rod with respect to the cylinder barrel. The rotator mechanism typically includes a hydraulic or electric motor connected to the rod by, for example, a chain engaged with a pair of sprockets.
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