Tool driving or impacting – Drive by means reacting to rotating eccentric mass
Reexamination Certificate
2006-04-26
2008-07-01
Smith, Scott A. (Department: 3721)
Tool driving or impacting
Drive by means reacting to rotating eccentric mass
C173S091000, C173S135000, C173S206000, C173S210000, C405S232000, C175S056000
Reexamination Certificate
active
07392855
ABSTRACT:
A drive system for driving and/or extracting an elongate member. The drive system comprises a piston drive assembly, a hydraulic system, and a vibration drive assembly. The piston drive assembly comprises a piston member, and the piston member engages the elongate member. The hydraulic system is operatively connected to the piston drive assembly to apply a drive force to the piston member. The vibration drive assembly generates a vibratory force. The vibration drive assembly is operatively connected to the piston drive assembly. The drive system operates in a first mode in which the drive force and the vibratory force are applied to the piston member along a drive axis.
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American Piledriving Equipment, Inc.
Schacht Michael R.
Schacht Law Office Inc.
Smith Scott A.
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