Point to point self-leveling plumbing device

Details Point to point self-leveling plumbing device Point to point self-leveling plumbing device

1976-08-09

1978-08-15

Aegerter, Richard E.

Geometrical instruments

Straight-line light ray type

Alignment device

33227, 33299, G01C 1502, G01C 1510

Patent

active

041062078

ABSTRACT:
A tubular aluminum housing, having vertically centered pinpoint light bulbs at either end in nose cones, is suspended on a stand by a gimbal system, and has an on-off switch and batteries such that the light bulbs will emit aligned light beams above and below the housing. The nose cones are threaded onto the housing such that they can be moved upwardly and downwardly for focusing of the light beams. Colluminator and magnifying lenses are contained in the nose cones for magnification and additional focusing. A wind shield is disposed on the stand around the housing.

REFERENCES:
patent: 2517295 (1950-08-01), Esher
patent: 2571287 (1951-10-01), Peters
patent: 3462845 (1969-08-01), Matthews
patent: 3505739 (1970-04-01), Abrams
patent: 3772797 (1973-11-01), Gleba
patent: 3911588 (1975-10-01), Ohneda

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