PNEUMATIC TOOL AND ROTATION MECHANISM THEREOF
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United States of America Patent
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Issued Date -
Jul 13, 2017
app pub date -
Jan 8, 2016
filing date -
Jan 8, 2016
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Abstract
A rotation mechanism includes a first shell portion and a rotor. A first shell portion has at least one inlet and outlet annular faces, the inlet and outlet annular faces surround a same axis, and the inlet and outlet annular faces are axially alternatively arranged. The rotor is rotatably disposed within the first shell portion and includes annular blade areas each having blades, and each annular blade area partially corresponds to inlet and outlet annular faces respectively. The pneumatic tool includes the rotation mechanism, a second shell portion receiving the rotation mechanism and a rotation axle. The second shell portion has at least one outlet channel communicating with the outlet through hole of the outlet annular face and at least one inlet channel communicating with the inlet through hole of the inner annular face. The rotation axle is assembled to the rotation mechanism.
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