Stone working – Tools – Surface traversing
Reexamination Certificate
2008-05-20
2008-05-20
Nguyen, Dung Van (Department: 3723)
Stone working
Tools
Surface traversing
C451S011000
Reexamination Certificate
active
07373936
ABSTRACT:
The instant invention relates to power tools. More specifically, the instant invention is a portable device for shaping, contouring and polishing the edge of a workpiece consisting of a hard material. The device includes a guide-way constructed and arranged to attach directly to the upper surface of the workpiece. A carriage is slidably supported on the guide-way for movement along the length thereof. Secured to the carriage is a motor for rotation of a rotary tool. A pneumatic cylinder is provided to force the rotary tool into the workpiece with a predetermined pressure along a predetermined axis of approach. The carriage is constructed and arranged for vertical positioning and angular rotation of the rotary tool.
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Nguyen Dung Van
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