Bottom rotation shaft actuator
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United States of America Patent
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-
Jul 6, 1999
Grant Date -
N/A
app pub date -
Feb 3, 1997
filing date -
Feb 3, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An actuator for effecting bottom hole rotation consisting of an upper wash pipe having a spiral groove mandrel that is in operative association with a ball clutch assembly that is secured to the upper wash pipe. The weight placed on the actuator at the wash pipe connection is effective to drive the mandrel and ball clutch assembly through a given amount of rotation, e.g., five rotations per actuation can be applied to a selected working tool.
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Cited Art Landscape
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