Rotational ring puzzle

Details Rotational ring puzzle Rotational ring puzzle

2006-09-08

2008-11-18

Wong, Steven (Department: 3711)

Amusement devices: games

Puzzles

Jumping movement

Reexamination Certificate

active

07451985

ABSTRACT:
A spherical puzzle comprising a first semi-spherical shell engaged with a second semi-spherical shell. Each shell has four triangular panels held by a plate with the four triangular panels on each plate forming an intersecting track running perpendicularly along an x and y axis. The track on the x axis of the second semi-spherical shell forms a continuous track with the track on the x axis of the first semi-spherical shell and the track on the y axis of the second semi-spherical shell forms a continuous track with the track on the y axis of the first semi-spherical shell. A plurality of sliding tiles forming a predetermined pattern or design are placed on the intersecting tracks. One semi-spherical shell can rotate relative to the other semi-spherical shell about an equatorial axis.

REFERENCES:
patent: 4452454 (1984-06-01), Greene
patent: 4553754 (1985-11-01), Wiggs et al.
patent: 5566941 (1996-10-01), Destics
patent: 5836584 (1998-11-01), Chen
patent: 6857632 (2005-02-01), Tanner
patent: 2007/0057456 (2007-03-01), Liu
patent: 578621 (1994-01-01), None
patent: 2088728 (1982-06-01), None

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