Directional plotter for underwater searches

Details Directional plotter for underwater searches Directional plotter for underwater searches

1991-04-16

1992-12-01

Cuchlinski, Jr., William A.

Geometrical instruments

Apparel

Laying out

33431, 235 88N, 235 83, 235 61NV, G01C 2120, G09B 2910

Patent

active

051670720

ABSTRACT:
A directional plotter for underwater searches, land searches, land orienting, or the like includes a pair of first and second relatively rotatable discs with the first disc including first, second and third concentric sets of compass degrees in radially adjacent relationship to each other. The second disc includes first, second and third sets of apertures associated with the first, second and third concentric sets of compass degrees. The two discs are relatively rotatable such that different search patterns can be established by rotating the discs relative to each other and viewing the required degrees for a particular search pattern through the associated apertures.

REFERENCES:
patent: 2560590 (1951-07-01), Ocker
patent: 2618856 (1952-11-01), Sweet
patent: 2996242 (1961-08-01), Bannister
patent: 3100601 (1963-08-01), Shapiro
patent: 3315887 (1967-04-01), Martin, Jr.
patent: 3614393 (1971-10-01), Sanderson
patent: 3721007 (1973-03-01), Banner

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