Recreational compass

Details Recreational compass Recreational compass

1981-11-09

1984-03-27

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

With viewing aid

33272, 33355R, 33364, G01C 1720, G01C 1712

Patent

active

044385684

ABSTRACT:
A recreational or sportman's compass is comprised of an inner vial including a compass needle which together with an azimuth ring is resiliently mounted within a housing so as to be rotatable together or independently of one another. The vial is assembled together with the outer azimuth ring and retainer in such a way as to permit assembly of the parts into snug-fitting concentric relation to the housing without the necessity of positively fastening or affixing the vial to the housing.

REFERENCES:
patent: 1571697 (1926-02-01), Bernegau
patent: 2019411 (1935-10-01), Hassell
patent: 2111829 (1938-03-01), Winterer et al.
patent: 2136970 (1938-11-01), Ekeberg
patent: 2331747 (1943-10-01), Tillander
patent: 2358589 (1944-09-01), Piffath
patent: 3184854 (1965-05-01), Grasse
patent: 3248793 (1966-05-01), Anderson
patent: 4158260 (1979-06-01), Benger et al.
patent: 4236316 (1980-12-01), Suzuki

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