Modular control apparatus for a power impact tool
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United States of America Patent
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Nov 30, 2004
Grant Date -
Feb 12, 2004
app pub date -
Aug 6, 2002
filing date -
Aug 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention comprises a power impact torque tool that is torque-limited by a novel torque-timing device that controls the amount of time that the tool motor operates after the operator initiates tool operation. The invention also includes the torque-timing device itself and with other tools. The invention further includes the torque-timing device in the form of a modular, releasably-attachable, user-adjustable control apparatus for tools powered by compressable fluids. The torque-time-limiting device allows the user to adjust a needle valve that controls the filling of a reservoir which, when full, provides the pressure required for actuating a shut-off valve.
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