Spherical puzzle

Details Spherical puzzle Spherical puzzle

1991-06-13

1992-06-02

Grieb, William H.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

A63F 912

Patent

active

051181118

ABSTRACT:
A spherical puzzle composed of six individual pieces. Each piece has a pair of opposed, convex, arcuate ends. A rectangular prism extends between each pair of arcuate ends. Three of the pieces each have portions removed from the rectangular prism to form a triangular pyramid. Two other pieces each have portions removed from the rectangular prism to form a triangular pyramid with one triangle removed to form a notch. The individual pieces may be assembled and interlocked to form a sphere, whereby the arcuate, convex ends form the exterior of the sphere.

REFERENCES:
patent: 766444 (1904-08-01), Hoy
patent: 1546024 (1925-07-01), Reichenbach
patent: 2001067 (1935-10-01), Lane
patent: 3578331 (1971-05-01), DeGast
patent: 4441715 (1984-04-01), Titus
patent: 4529201 (1985-07-01), Nadel
patent: 4557484 (1985-12-01), Sherman, Jr. et al.
patent: 4865323 (1989-09-01), Heusinkveld
patent: 4877406 (1989-10-01), Wilk
patent: 4889340 (1989-12-01), Greene

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