Polyhedral surface jigsaw puzzles

Details Polyhedral surface jigsaw puzzles Polyhedral surface jigsaw puzzles

1996-05-15

1998-12-01

Epstein, Henry F.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

428 33, A63F 912

Patent

active

058426973

ABSTRACT:
The invention comprises a continuous surface made from jigsaw puzzle pieces, wherein the three or more pieces whose corners share a common point when assembled, have corner angles whose sum is less than 360 degrees with the common point as vertex of said corner angles. The present invention makes it possible to work on jigsaw puzzles which, when assembled and during assembly, form continuously curving polyhedral surfaces, and to provide a jigsaw puzzle whose pieces assemble edge to edge into a self-supporting curved surface which is a closed multifaceted polyhedron whose appearance is substantially spherical.

REFERENCES:
patent: 2987318 (1961-06-01), Hammer
patent: 3578331 (1971-05-01), De Gast
patent: 3689075 (1972-09-01), Adelsohn
patent: 3819188 (1974-06-01), Freedman
patent: 4625969 (1986-12-01), Donnell
patent: 5217226 (1993-06-01), Christopher
patent: 5251900 (1993-10-01), Gallant
patent: 5351957 (1994-10-01), Scott

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