Patent ID: 6988434

Claim:
A positioning device for positioning a tool, the device comprising: a base having a length extending along a first horizontal axis; a first arm coupled to a first carriage and extending therefrom along a second horizontal axis perpendicular to the first horizontal axis, the first carriage coupled to the base and configured to move across the base along the first horizontal axis; a second arm pivotally coupled to a second carriage and extending therefrom along a vertical axis, the second carriage coupled to the first arm and configured to move across the first arm along the second horizontal axis, the second arm configured to pivot about a first rotational axis parallel to the first horizontal axis; and an extending arm coupled to the second arm and parallel therewith, the extending arm configured to move across the second arm along the vertical axis and having a central shaft configured to rotate within the second arm about a second rotational axis parallel to the vertical axis.