Amusement devices: games – Puzzles – Take-aparts and put-togethers
Reexamination Certificate
1999-07-21
2001-06-05
Wong, Steven (Department: 3711)
Amusement devices: games
Puzzles
Take-aparts and put-togethers
Reexamination Certificate
active
06241249
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a puzzle blocks, and more particularly to such a puzzle block, which is comprised of total 27 square blocks connected to one another by magnetic attraction, and arranged into a combination square block.
A regular puzzle block is comprised of 27 small square blocks of different colors mechanically coupled to one another, forming six sides, each side formed of 9 small square blocks. By rotating the square blocks relative to one another, the puzzle block can be set to show any of a variety of color combinations. This puzzle block is practical for training one's brainpower. However, because the small square blocks of the puzzle block are connected to one another mechanically, the user cannot disconnect the small square blocks from one another for a re-arrangement.
SUMMARY OF THE INVENTION
It is the main object of the present invention to provide a puzzle block, which is comprised of a plurality of small square blocks detachably connected to one another by magnetic attraction. It is another object of the present invention to provide a puzzle block, which keeps small square blocks to be connected to one another by magnetic attraction and, allows the small square blocks to be rotated relative to one another. To achieve these and other objects of the present invention, there is provided a puzzle block comprised of one first square block, which has magnet at each of the six sides thereof, 6 second square blocks, which has a magnet at each of four sides thereof and a metal sheet at one of the other two sides thereof, 12 third square blocks, which has a magnet at each of two opposite sides thereof and two metal sheets respectively provided at two adjacent sides thereof between the two opposite sides which carry a respective recessed hole, and 8 fourth square blocks, which has a plurality of metal sheets respectively provided at three adjacent sides thereof. The square blocks are attached to one another forming a combination block such that the magnets at the first square blocks respectively attract the metal sheet at each of the second square blocks, the metal sheets at the third square blocks are respectively attracted by the magnets at the second square blocks, and the metal sheets at the fourth square blocks are respectively attracted by the magnets at the third square blocks.
REFERENCES:
patent: 2939243 (1960-06-01), Duggar
patent: 3095668 (1963-07-01), Dorsett
patent: 3254440 (1966-06-01), Dubbar
patent: 3655201 (1972-04-01), Nichols
patent: 5409236 (1995-04-01), Therrien
patent: 5520396 (1996-05-01), Therrien
A & J
Wong Steven
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