Improved optical plumb and leveling apparatus

Details Improved optical plumb and leveling apparatus Improved optical plumb and leveling apparatus

1994-09-23

1996-11-12

Will, Thomas B.

Geometrical instruments

Straight-line light ray type

Alignment device

33290, 33299, 33DIG21, G01C 1500

Patent

active

055727972

ABSTRACT:
An apparatus for performing plumb and level functions includes a base unit that can be leveled in a horizontal plane. A detachable socket with a bearing surface rotates about a complementary bearing mechanism on the base unit about an axis of rotation that is vertical when the base unit is horizontal. The cavity carries a rotatable body that carries a battery-operated laser light-emitting diode for projecting a beam along a projection axis that is a radius from the center of the rotatable body. The rotatable body can move between vertical and horizontal positions to define a vertical extension of the axis of rotation to perform a plumb function or to a horizontal position to move the projected light beam in a horizontal plane.

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