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US 2002/0170404 A1Published application
Miter saw having a light beam alignment system
AssigneeOne World Technologies Lmt.
InventorsDavid G. Peot, Philip F. Minalga, George M. Hornick, William C. Buck, William E. Kaiser
Life of this patent
Estimating the term…
Abstract
A table saw such as a chop saw, a miter saw, compound miter saw or a sliding compound miter saw that is provided with a laser arbor alignment system. An opaque shield or transparent shield having an opaque mask blocks the laser beam from being projected into a range of normal operator eye positions. One or more openings in the shield or opaque mask provide a sight line on a workpiece initially. As the saw is moved into engagement with the workpiece, the shield is pivoted away from the workpiece and a solid laser line is projected on the workpiece.
Claims26
A miter saw comprising:
- a motor having a spindle;
- a saw base;
- an arm connecting the motor to the saw base;
- a blade secured to the spindle and rotated by the motor to cut a workpiece disposed on the saw base;
- a light source mounted to the spindle and arranged to be rotated by the motor with the blade, the light source emitting a narrow beam of light adjacent the blade for providing a visual indication of the alignment of the blade with the workpiece;
- and
- a moveable guard that pivots to cover at least a portion of the blade that is not engaging the workpiece, the guard having an opaque portion that blocks the beam of light to prevent the beam of light from being directed toward an operator of the saw.
4 more elements
A saw comprising:
- a motor having a spindle;
- a saw base;
- an arm connecting the motor to the saw base;
- a blade secured to the spindle and rotated by the motor to cut a workpiece disposed on the saw base;
- an arbor secured to the spindle;
- a light source attached to the arbor and arranged to be rotated by the motor with the blade, the light source emitting a narrow beam of light adjacent the blade for providing a visual indication of the alignment of the blade with the workpiece;
- and
- a moveable guard that pivots to cover at least a portion of the blade that is not engaging the workpiece, the guard having an opaque portion that blocks the beam of light to prevent the beam of light from being directed toward an operator of the saw and a transparent portion that allows the narrow beam of light to pass through to create a line of light on the workpiece when the moveable guard is disposed between the laser and the workpiece.
5 more elements
A miter saw comprising:
- a motor having a spindle;
- a saw base;
- an arm connecting the motor to the saw base;
- a blade secured to the spindle and rotated by the motor to cut a workpiece disposed on the saw base;
- an arbor secured to the spindle, the arbor including an arbor base having a first mounting surface;
- a light source secured to the arbor having a housing including a second mounting surface, wherein the first and second mounting surfaces are secured together in a range of angular orientations for precisely aligning the light source, the light source being rotated by the motor with the blade, the light source emitting a narrow beam of light adjacent and tilted toward the blade for providing a visual indication of the alignment of the blade with the workpiece.
3 more elements
A miter saw comprising:
- a motor having a spindle;
- a saw base;
- an arm connecting the motor to the saw base;
- a blade secured to the spindle and rotated by the motor to cut a workpiece disposed on the saw base;
- an arbor secured to the spindle, the arbor including an arbor base having a first arcuate surface;
- a light source secured to the arbor having a housing including a second arcuate surface, wherein the first and second arcuate surfaces that are secured together within a range of positions to precisely align the light source, the light source being rotated by the motor with the blade, the light source emitting a narrow beam of light adjacent and tilted toward the blade for providing a visual indication of the alignment of the blade with the workpiece.
3 more elements
A miter saw comprising:
- a motor having a spindle;
- a saw base;
- an arm connecting the motor to the saw base;
- a blade secured to the spindle and rotated by the motor to cut a workpiece disposed on the saw base;
- an arbor secured to the spindle;
- a light source mounted to the arbor and arranged to be rotated by the motor with the blade, the light source comprising at least one battery and emitting a narrow beam of light adjacent the blade for providing a visual indication of the alignment of the blade with the workpiece, the arbor having an arbor base to which the light source is secured and a cover to which the at least one battery is secured, wherein removal of the cover from the arbor base prevents inadvertent operation of the light source when the cover is so removed.
3 more elements
Dependencies are inferred from the claim text.