Sighting device

Details Sighting device Sighting device

1990-12-24

1992-03-10

Haroian, Harry N.

Geometrical instruments

Straight-line light ray type

Structurally installed

33624, G01C 2104

Patent

active

050940015

ABSTRACT:
A portable sighting device particularly adapted for facilitating the guidance of a vehicle where sight judgment is required to keep the vehicle on a right course. The device has resistably rotatable base having securing means for quick adjustment, removal and portability and a perpendicular member which supports a vertically pivotal telescopic tubular member. The vertically pivotally telescopic tubular member has an outer stationary element and an inner extendible element. The inner extendible element has sighting reference objects of different sizes and colors to facilitate a quick line of sight through one of the objects helping the operator to maneuver through an irregular course. The sighting device can be resistively pivotally permanently affixed when portability is not desired.

REFERENCES:
patent: 637939 (1899-11-01), Murray
patent: 2827704 (1958-03-01), Hunsicker
patent: 3015162 (1962-01-01), Bohnet
patent: 3199487 (1965-08-01), Heinkel
patent: 3932028 (1976-01-01), Klingler
patent: 4016653 (1977-04-01), Bartlett

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