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THREE DIMENSIONAL PUZZLES

  • US 3,578,331 A
  • Filed: 02/20/1969
  • Issued: 05/11/1971
  • Est. Priority Date: 02/20/1969
  • Status: Expired due to Term
First Claim
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1. A three-dimensional puzzle for forming a hollow object having a surface of revolution, comprising:

  • a plurality of identical four-sided puzzle pieces each forming an individual section of said surface of revolution, each of said pieces having complementary peripheral necked projections and recesses on the sides thereof, said projections and recesses being shaped to interfit with one another so that a projection from one piece will interfit with a corresponding comPlementary recess on an adjacent contiguous piece to interlock the contiguous pieces together to form a self-supporting surface, said pieces being shaped so that, when fitted together, sets of three of said pieces will share a common corner and form substantially triangular portions of said surface, and sets of five of said pieces will share another common corner and form substantially pentagonal portions of said surface.

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