Tool driving or impacting – Means to drive tool about an axis – Electric motor
Reexamination Certificate
2007-02-13
2007-02-13
Nguyen, Matthew V. (Department: 2838)
Tool driving or impacting
Means to drive tool about an axis
Electric motor
C323S350000
Reexamination Certificate
active
10876125
ABSTRACT:
This interface is an apparatus for controlling a power supply delivering power to a DC powered tool. The interface is connected between the DC power supply and the DC tool wherein the interface is configured to read signals from the tool and control the power supplied by allowing the power supply to run, brake, reverse or jog the tool. A microprocessor is connected to the interface programmed to provide a specific power in response to the signals from the tool read by the interface. The interface includes a number of field effect transistors. They are PFET1, PFET2, NFET1, and NFET2.
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C.E. Electronics, Inc.
Emch, Schaffer, Schaub & Porcello & Co., L.P.A.
Nguyen Matthew V.
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