Tool driving or impacting – Impacting devices – With means for rotating tool
Reexamination Certificate
2007-12-25
2007-12-25
Rada, Rinaldi I. (Department: 3721)
Tool driving or impacting
Impacting devices
With means for rotating tool
C173S109000, C173S169000
Reexamination Certificate
active
11164982
ABSTRACT:
A pneumatic tool is operable with a single hand. The pneumatic tool includes a shell defining a first chamber and a second chamber. The second chamber includes intake and outlet apertures in communication with the first chamber. A cylinder is in the first chamber. A controller is movable in the second chamber between a first position and a second position. The controller includes a first groove and a second groove. In the first position, the first groove communicates with the intake aperture for directing pressurized air to drive the cylinder in a first direction. In the second position, the second groove communicates with the intake aperture for directing pressurized air to drive the cylinder in a second direction. A cover seals the first chamber and the second chamber. The cover defines an opening through which the controller extends from the second chamber so that the controller can be moved.
REFERENCES:
patent: 3624820 (1971-11-01), Brown
patent: 3833068 (1974-09-01), Hall
patent: 3924961 (1975-12-01), Hess et al.
patent: 5918686 (1999-07-01), Izumisawa
patent: 6062323 (2000-05-01), Pusateri et al.
patent: 2002/0084086 (2002-07-01), Taga
Taiwanese Patent Publication No. 387316, Apr. 11, 1989, 4 pages.
Taiwan Patent Publication M275925, Sep. 21, 1994, 8 pages.
Chukwurah Nathaniel
Kamrath Alan
Kamrath & Associates PA
Mighty Seven International Co., Ltd.
Rada Rinaldi I.
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