Aircraft navigation plotter

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Description

FIG. 1 is a top plan view of an aircraft nagivation plotter showing my new design, the lower circular transparent disc having been rotated for exemplary purposes, so that 265.degree. is indexed at the diamond on the subjacent opaque base plate and the arrows on the uppermost substantially semi-circular transparent plate point respectively to 115.degree. and 295.degree. on the underlying circular transparent disc;

FIG. 2 is an elevational view of one side edge, the elevational view of the opposite side edge being substantially a mirror image thereof;

FIG. 3 is an elevational view of one end edge of FIG. 4, the elevational view of the other end edge being substantially a mirror image thereof; and,

FIG. 4 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
D201385 June 1965 Pelletier
D201829 August 1965 Marcoline
2404386 July 1946 Levine
2916207 December 1959 Vohland
3110965 November 1963 Kittock
3643333 February 1972 Pepper
3724079 April 1973 Jasperson
3745313 July 1973 Spilhaus
3844042 October 1974 Hodge
Patent History
Patent number: D249656
Type: Grant
Filed: Jan 10, 1977
Date of Patent: Sep 26, 1978
Inventor: Marcus A. Mihail (Sacramento, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Robert G. West
Application Number: 5/758,052
Classifications
Current U.S. Class: Angle Or Direction (7) (D10/65); Flat Multisheet (33/1SD)
International Classification: D1004;