Patent ID: 6725551
Filing Date: 2004-04-27
Classification: G01C,Y10S

Abstract:
An apparatus for locating a point on one surface and indicating a corresponding point on another surface comprising a mobile wheeled base having an indicator thereon to position the base in predetermined relation to a point on one surface and a light beam emitting device mounted on said base in predetermined relation to said indicator to emit a light beam to impinge on said another surface to indicate a point on said another surface corresponding to the point on said one surface, said indicator including a pair of longitudinally spaced and aligned pointers mounted on and depending from said base for alignment with a reference line on said one surface, said pointers being vertically adjustably mounted on said base to enable a lower end of each pointer to be positioned in alignment with and adjacent to said reference line on said one surface, said light beam emitting device including a pair of support arms oriented perpendicular to a longitudinal line extending between said pointers, each of said support arms being laterally adjustably supported on said base and supporting a laser beam emitting device on an outer end thereof to enable said laser beam emitting devices to adjustably indicate points on said another surface.