Geometrical instruments – Straight-line light ray type
Patent
1991-06-18
1993-02-09
Cuchlinski, Jr., William A.
Geometrical instruments
Straight-line light ray type
33286, 33291, 33378, G01C 1502, G01C 1508
Patent
active
051844060
ABSTRACT:
The present invention relates to projected light plumb device generally utilized in vertically aligning a floor position with a corresponding ceiling position in which a light projecting device is buoyantly supported within a fluid filled container. The light projecting device is selectively mounted on a float platform which is horizontally supported by the fluid in such a manner that regardless of the floor's inclination, the light projecting device will transmit a beam of light along a perfectly vertical line.
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Cuchlinski Jr. William A.
Fulton C. W.
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