Hidden passage ball puzzle

Details Hidden passage ball puzzle Hidden passage ball puzzle

1983-05-23

1985-04-09

Pinkham, Richard C.

Amusement devices: games

Surface projectile game; game element

Moving surface

273116, A63F 704

Patent

active

045097534

ABSTRACT:
The Pyramid Puzzle is a toy puzzle incorporating a ball hidden inside a pyramid. By chance rotation of the various levels of the pyramid the ball drops through the levels of the pyramid. When the ball falls into a blind (partial) hole, the pyramid must be manipulated to reorient the ball so that it may fall freely down to the next level. The puzzle is solved by retrieving the ball in a sliding tray at the base of the pyramid.

REFERENCES:
patent: 509362 (1893-11-01), Casler
patent: 679782 (1901-08-01), Reenstierna
patent: 3592471 (1971-07-01), Swimmer
patent: 3610628 (1971-10-01), Promin
patent: 3747937 (1973-07-01), Fabricani
patent: 4376537 (1983-03-01), Yokoi

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