Piloting instrument

Details Piloting instrument Piloting instrument

1977-11-30

1979-02-27

Aegerter, Richard E.

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

33262, G01C 1702

Patent

active

041411528

ABSTRACT:
A small, light magnetic compass, in which the magnetic moment of the compass card is large relative to its weight, is adjustably mounted upon a member firmly coupled to the human head so that accurate compass bearings may be obtained, or a vessel steered, through an optical system presenting a magnified image of the compass card to the eye of the wearer.

REFERENCES:
patent: 1409808 (1922-03-01), Wood
patent: 1961066 (1934-05-01), Mix
patent: 2634702 (1953-04-01), Rowe
patent: 2796666 (1957-06-01), Liebowitz
patent: 3029517 (1962-04-01), Frey
patent: 3210859 (1965-10-01), Fisk
patent: 3475957 (1969-11-01), Hiszpanski
patent: 3670417 (1972-06-01), Rogers
patent: 3812593 (1974-05-01), Wydro
patent: 3826502 (1974-07-01), Sorge
patent: 3843262 (1974-10-01), Lazarer et al.

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