Education and demonstration – Science – Molecular model or display having discrete element...
Patent
1988-11-04
1989-10-31
Coven, Edward M.
Education and demonstration
Science
Molecular model or display having discrete element...
273153S, G09B 2326, A63F 908
Patent
active
048774065
ABSTRACT:
A device for use as a molecular model or manipulable puzzle includes at least two concentric spheres rotatable with respect to one another and a plurality of at least six inserts extending radially through the concentric spheres. Each of the spheres has at least two great circle channels crossing one another, preferably perpendicularly, each great circule channel receiving at least one and preferably four of eight inserts. The outer spheres are formed by separate, approximately quarter sphere, curved segments which are held together by the inserts. The concentric spheres can be made to rotate with respect to one another by movement of the inserts. In the preferred embodiments, eight inserts are arrangable in cubic orientations forming two sets of four, tetrahedrally oriented inserts. Three inserts of each set can be manipulated from a tetrahedral orientation with respect to the fourth insert of the set to a tetrahedral orientation with respect to an insert of the other set diametrically opposed to the fourth insert. Unique indicia on the surface of the outer sphere and on cover member portions of the inserts can be used to provide a manipulatable puzzle.
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Coven Edward M.
Szczepanik Valerie
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