Tool driving or impacting – Impacting devices – Hammer head driven by electric motor
Reexamination Certificate
2004-09-17
2010-11-02
Rada, Rinaldi I. (Department: 3721)
Tool driving or impacting
Impacting devices
Hammer head driven by electric motor
C173S091000, C173S112000, C173S114000, C173S184000, C310S013000
Reexamination Certificate
active
07823654
ABSTRACT:
An impact driver for driving elongate objects into a body has, a chassis, a ram supported by the chassis in a manner allowing rectilinear movement of the ram relative to the chassis between two limits, and a linear induction motor. The linear induction motor has a stator mounted to the chassis and positioned to operatively interact with a linear induction motor reaction member being of a conductive metal material. The reaction member is carried by the ram in a manner to allow the ram to oscillate between the two limits by the stator of the linear induction motor. A first limit being a retracted position and a second limit being an impact position to which the ram is accelerated from the retracted condition by the stator and at which the ram imparts an impact force on the elongate object in the elongate direction thereof.
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Low Lindsay
Rada Rinaldi I.
Ramet Holdings Ltd
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