Geometrical instruments – Straight-line light ray type – Process
Reexamination Certificate
2011-07-19
2011-07-19
Guadalupe-McCall, Yaritza (Department: 2841)
Geometrical instruments
Straight-line light ray type
Process
C033SDIG021
Reexamination Certificate
active
07979993
ABSTRACT:
A method of laying out a grid of points across an area comprises designating a starting reference point; projecting with the laser beam a first reference line intersecting the first reference point and extending in a first direction relative to the area; designating the set of first line reference points along the first reference line; projecting with a laser beam a second reference line from each of the set of first reference line points in a direction at least partially across the area; designating a set of second line reference points at or near the area along each of the second reference lines, so that a grid of points across the area correlated to at least one laser beam projection is created. In this manner, the laser provides a quick and accurate straight line for referencing points in the grid. The method could be used to just lay out a grid of lines. An apparatus according to one aspect of the invention comprises a portable base, a laser on the base adapted to project a laser beam in a plane, and a means to identify measured points from the base. The measured points can be relative to the projected plane from the laser. The portable base can be moved to different reference points relative to the area to quickly set up a grid of accurate lines or points in the area.
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Barker David L.
Heaton Steven T.
Tippett Nicholas A.
Guadalupe-McCall Yaritza
McKee Voorhees & Sease, P.L.C.
Musco Corporation
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