Patent ID: 8281495

Claim:
A layout and point transfer system, comprising: (a) a first base unit, having a first laser light transmitter that emits a first laser light plane, and a first processing circuit, said first laser light transmitter being rotatable and having an axis of rotation that is parallel to said first laser light plane; (b) a second base unit, having a second laser light transmitter that emits a second laser light plane, and a second processing circuit, said second laser light transmitter being rotatable and having an axis of rotation that is parallel to said second laser light plane; and (c) a remote unit, having a third processing circuit, wherein: (i) said remote unit contains a virtual floor plan for use at said physical jobsite surface; and (ii) said virtual floor plan includes coordinates for said at least two benchmark points; wherein: (d) said system is configured to register locations of said first and second base units on a physical jobsite surface with respect to at least two benchmark points that are also located on said physical jobsite surface; (e) said system is configured to provide a visual representation of a virtual point on said physical jobsite surface, by aiming first laser light plane in a first static direction and said second laser light plane in a second static direction, to indicate a location of said virtual point; (f) said first base unit further comprises: (i) a first self-leveling device; (ii) a first azimuth position encoder; (iii) a first azimuth motor drive for automatic positioning said first laser light transmitter, under control of said remote unit; and (g) said second base unit further comprises: (i) a second self-leveling device; (ii) a second azimuth position encoder; (iii) a second azimuth motor drive for automatic positioning said second laser light transmitter, under control of said remote unit.