Tetrahedron blocks capable of assembly into cubes and pyramids
OwnerPatricia A. Roaneinventor
Life of this patent
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Abstract
A series of interrelated sets of tetrahedron Each set is capable of assembly into a cube with all the cubes being identical in size. Typically, there are at least three such sets, though there may be more; and when there are three sets, for example, one set contains twice as many tetrahedron blocks as the second set and four times as many as the third set. The tetrahedrons are preferably hollow and each of them has a magnet for each face, e.g., affixed to the interior walls of its faces, the magnets being so polarized that upon assembly into a cube or pyramid, the magnets of facing faces attract each other. Preferably, the blocks are colored in such a way that faces of the same size and shape are colored alike and each size and shape has a different color.
Claims21
A group of tetrahedron blocks consisting of a series of interrelated sets with every block in every set being a tetrahedron and every face of every tetrahedron being a right triangle, each set being capable of assembly into a cube, the cubes for all sets being identical in size, a first said set consisting of twice as many tetrahedron blocks as a second said set and four times as many tetrahedron blocks as a third said set.
A block group that comprises at least three sets of blocks, each set being capable of assembly into a cube, all cubes being the same size, a first set having twice as many blocks as a second set and four times as many as a third set, and so on, each and every block being a tetrahedron with magnetized faces, every face of every block being a right triangle, proper assembly positioning the magnetized faces so that they attract each other.
A group of tetrahedron blocks comprising a series of interrelated sets of tetrahedron blocks exclusively, each set being capable of assembly into a cube, the cubes being identical in size, all the tetrahedron blocks in each set having every face thereof a right triangle, the tetrahedron blocks in each set being of different size from those of the other sets, and comprising at least one pair of subsets of identical tetrahedron blocks, the tetrahedron blocks in each subset being symmetric to those in another subset of that pair.
A group of blocks comprising forty-two tetrahedrons, all faces being right triangles comprising three interrelated sets, each set being capable of assembly into a cube, the three cubes being identical in size,
- a first set of twenty-four tetrahedrons consisting of
- four subsets of tetrahedrons, namely
- first and second subsets each consisting of
- eight identical tetrahedrons, each tetrahedron of said first subset being symmetric to each tetrahedron of said second subset, and
- third and fourth subsets each consisting of
- four identical tetrahedrons, and each tetrahedron of said third subset being symmetric to each tetrahedron of said fourth subset,
- a second set of twelve tetrahedrons consisting of four
- subsets of tetrahedrons, namely,
- fifth and sixth subsets consisting of four
- identical tetrahedrons, each tetrahedron in said fifth subset being symmetric to each tetrahedron in said sixth subset, and
- seventh and eighth subsets each comprising two
- identical tetrahedrons, each tetrahedron of said seventh set being symmetric to each tetrahedron of said eighth set,
- a third set of six tetrahedrons comprising two
- subsets, namely
- a ninth subset of at least three identical tetrahedrons, and a tenth subset of at least two identical tetrahedrons,
- each tetrahedron of said ninth subset being symmetric to each tetrahedron of said tenth set.
A group of blocks comprising forty-two tetrahedrons with only right-triangular faces, comprising three interrelated sets, each set being capable of assembly into a cube, the three cubes being identical in size,
- A. a first set of twenty-four tetrahedrons comprising four subsets of tetrahedrons, namely,
- (1) a first subset comprising eight identical tetrahedrons,
- (2) a second subset comprising eight identical tetrahedrons,
- each tetrahedron of said first subset being symmetric to each tetrahedron of said second subset and the six edges of each tetrahedron being related to the shortest edge=1, as follows:
- 1, 1, .sqroot.2, 2, .sqroot.5, .sqroot.6,
- (3) a third subset comprising four identical tetrahedrons, and
- (4) a fourth subset comprising four identical tetrahedrons,
- each tetrahedron of said third subset being symmetric to each tetrahedron of said fourth subset, the six edges of each being related to the shortest edge=1 of the tetrahedrons of said first subset, as follows:
- 1, 1, 2, .sqroot.5, .sqroot.5, .sqroot.6,
- B. A second set of twelve tetrahedrons comprising four subsets of tetrahedrons, namely,
- (1) a fifth subset comprising four identical tetrahedrons,
- (2) a sixth subset comprising four identical tetrahedrons,
- each tetrahedron in said fifth subset being symmetric to each tetrahedron in said sixth subset and each having six edges related to the shortest edge=1 of said first subset as follows:
- .sqroot.2, .sqroot.2, 2, 2, .sqroot.6, 2.sqroot.2, and
- (3) a seventh subset comprising two identical tetrahedrons,
- (4) an eighth subset comprising two identical tetrahedrons,
- each tetrahedron of said seventh set being symmetric to each tetrahedron of said eighth set with the six edges of each related to the shortest edge=1 of said first subset, as follows:
- .sqroot.2, .sqroot.2, 2, .sqroot.6, .sqroot.6, 2.sqroot.2, and
- C. a third set of six tetrahedrons comprising two subsets, namely,
- (1) a ninth subset of at least three identical tetrahedrons, and
- (2) a tenth subset of at least two identical tetrahedrons,
- each tetrahedron of said ninth subset being symmetric to each tetrahedron of said tenth subset and the six edges of each being related to the shortest edge=1 of said first subset as follows:
- 2, 2, 2, 2.sqroot.2, 2.sqroot.2, 2.sqroot.3.
Dependencies are inferred from the claim text.