Hexagonally shaped rotating display with tetrahedral elements

Details Hexagonally shaped rotating display with tetrahedral elements Hexagonally shaped rotating display with tetrahedral elements

1976-08-03

1978-02-07

Grieb, William H.

Card, picture, or sign exhibiting

Changing exhibitor

Motor operated

G09F 1102

Patent

active

040719685

ABSTRACT:
An improved mobile display apparatus is provided for advertising, decorative, or other purposes, which is made up of a series of solid geometrical polygons linked to one another by hinges or universal joints, such that the movement of one polygon is transmitted to the others. The polygons may be tetrahedrons or other four-sided solid geometrical elements whose triangular sides have edges of unequal length. An even number of six or more tetrahedrons, for example, may be joined together in accordance with the invention in a continuous configuration. Odd or even numbers of three-dimensional polygons constructed from triangular elements with edges of unequal lengths may also be linked to form continuous chains, and folded together to form a display apparatus incorporating the concepts of the invention.

REFERENCES:
patent: 1997022 (1935-04-01), Stalker
patent: 2688820 (1954-09-01), Shemet
patent: 3186116 (1965-06-01), Freedman

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