Telescopic sight with level indicator

Details Telescopic sight with level indicator Telescopic sight with level indicator

1992-06-26

1993-06-29

Johnson, Stephen M.

Firearms

Muzzle making, attaching or repair

42 97, 33246, F41G 138, F41G 144

Patent

active

052236501

ABSTRACT:
A tilt or cant indicator for telescopic sights incorporates a gravity responsive device aligned with the reticle or vertical crosshair of the sight. A pendulum device incorporating a pointer is installed with its rotational axis intersecting the vertical crosshair such that canting is indicated when the vertical crosshair is not the pointer.

REFERENCES:
patent: 2243793 (1941-05-01), Cummins
patent: 2308635 (1943-01-01), Walker
patent: 3166848 (1965-01-01), Petzsch
patent: 3556666 (1971-01-01), Lichtenstern
patent: 3824699 (1974-07-01), Lenz et al.
patent: 3997974 (1976-12-01), Larson
patent: 4325190 (1982-04-01), Duerst
patent: 4375135 (1983-03-01), Wigger
patent: 4476644 (1984-10-01), Laing
patent: 4535544 (1985-08-01), Jones et al.
patent: 4561204 (1985-12-01), Binion
patent: 5005308 (1991-04-01), Parks
Brown, Popular Mechanics {Build Your Own Riflescopes}, Jan., 1949 pp. 198-203.

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