Conic section compass

Details Conic section compass Conic section compass

1997-04-07

1999-02-16

Fulton, Christopher W.

Geometrical instruments

Scriber

Curved line

033 211, 033 2702, 033 301, 033 306, B43L 902, B43L 1104

Patent

active

058708308

ABSTRACT:
Conic Section Compass (CSC) is a hand-held drawing device. It applies a mathematics concept. CSC can be used to draw circles, ellipses, parabolas, hyperbolas or make surface curvatures of these types. Given a specific mathematics formula of the mentioned curves, users can draw a well defined curve with CSC (just like a compass to drawing a circle).

REFERENCES:
patent: 2460826 (1949-02-01), Hooser et al.
patent: 2470328 (1949-05-01), Towle
patent: 2859522 (1958-11-01), Thomas
patent: 3100346 (1963-08-01), Cannon
patent: 4204327 (1980-05-01), Danial

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