Tool driving or impacting – Passage in manipulating handle for drive motor motive fluid – Motive fluid control valve in handle passage
Reexamination Certificate
2007-03-20
2007-03-20
Smith, Scott A. (Department: 3721)
Tool driving or impacting
Passage in manipulating handle for drive motor motive fluid
Motive fluid control valve in handle passage
C173S168000, C173SDIG002, C181S230000, C181S231000, C181S258000
Reexamination Certificate
active
11164580
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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Hyphone Machine Industry Co., Ltd.
Kamrath Alan D.
Nikolai & Mersereau , P.A.
Smith Scott A.
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