Pneumatic tool
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United States of America Patent
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Mar 20, 2007
Issued Date -
N/A
app pub date -
Nov 29, 2005
filing date -
Aug 19, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pneumatic tool includes a shell with a chamber defined therein, a first passage communicated with the chamber and a second passage communicated with the chamber. A rotor is installed in the chamber for rotation when driven by pressurized air flowing into the chamber through the first passage. A shaft extends to the exterior of the shell from the rotor. A trigger is installed on the shell. A control device is put in the first passage and connected with the trigger for controlling the first passage. A muffler is put in the second passage. The muffler includes a plurality of balls.
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