Underwater navigation device

Details Underwater navigation device Underwater navigation device

1992-01-27

1993-02-23

Cuchlinski, Jr., William A.

Geometrical instruments

Indicator of direction of force traversing natural media

Combined

33352, 33333, 33370, 2430, G01C 1708, G01C 912, G01C 2300

Patent

active

051878712

ABSTRACT:
A navigation device for personal use includes a face mask with a transparent window for binocular vision when the device is worn by the user. The face mask has a directional indicator attachement with a multiplicity of symbols to identify the directional orientation of the mask. The directional indicator is attached at a stable location and distance for continuous availability of direct binocular viewing.

REFERENCES:
patent: 1253190 (1918-01-01), Fischer
patent: 2139670 (1938-12-01), Burgess
patent: 3041917 (1962-07-01), Glatt
patent: 3084443 (1963-04-01), Kaatz et al.
patent: 3210859 (1965-10-01), Fisk et al.
patent: 3475957 (1969-11-01), Hiszpanski
patent: 3937078 (1976-02-01), Williams
patent: 4139951 (1979-02-01), Cunard et al.
patent: 4141152 (1979-02-01), White
patent: 4670988 (1987-06-01), Baxter
patent: 4953304 (1990-09-01), Raitman et al.

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