Rotary power tool
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United States of America Patent
Stats
-
Mar 17, 1987
Grant Date -
N/A
app pub date -
Apr 5, 1984
filing date -
Apr 13, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary power tool wherein an epicyclic train has a planet gear support frame coupled to an output shaft by a one-way clutch and a sun gear coupled to the output shaft by a clutch assembly which comprises a clutch plate, a slide tube, an arresting mechanism and a change lever, the output shaft being operable for tightening first with low-torque high-speed rotation and finally with high-torque low-speed rotation and being prevented from abruptly rotating at a high speed even if the load on the output shaft decreases.
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