Marble track construction toy

Details Marble track construction toy Marble track construction toy

1996-12-16

1999-07-20

Hafer, Robert A.

Amusement devices: toys

Including unattached gravity-fed rolling, tumbling, or...

446118, 446489, A63H 2908, A63H 3306, A63H 3300

Patent

active

059249072

ABSTRACT:
A marble track is constructed from cubes, base blocks, tower dowels, track dowels and rubber bands. Each cube has four vertically oriented tower bores, through-bores of approximately the width of the tower dowels, adjacent and parallel to the four vertical edges of the cube. Each base block has four vertically oriented tower bores with the same spacing as the tower bores in the cube. Cubes may be positioned on tower dowels extending vertically from a base block, and the position of a cube may be stabilized by a rubber band around the tower dowels just below the cube. A channel in each cube (except the "end cubes") permits a marble to pass through the cube. A channel may be bifurcated, and may have entrances/exits to any combination of the six faces of a cube. Track dowels may be inserted in track bores below each side channel entrance/exit to permit the marble to roll out of the channel and onto the track dowels. To facilitate the capture of a marble falling into a top entrance hole of a channel, the top hole may have a counterbore. Optimal dimensions of the components are related to the diameters of the marble and the dowels, and the side length of the cubes.

REFERENCES:
patent: 1252616 (1918-01-01), Reif
patent: 1450375 (1923-04-01), Kehl
patent: 3438633 (1969-04-01), Thomas
patent: 3689074 (1972-09-01), Benton et al.
patent: 3696549 (1972-10-01), Zilius
patent: 3800443 (1974-04-01), O'Connell et al.
patent: 3801094 (1974-04-01), Treaster
patent: 4037355 (1977-07-01), Street
patent: 4171090 (1979-10-01), Eisenburg
patent: 5007876 (1991-04-01), Klitsner
patent: 5056789 (1991-10-01), Talbot
patent: 5314367 (1994-05-01), Schaefer
patent: 5451177 (1995-09-01), Gilman
Tube Trax packaging, Battat Inc., Plattsburgh, New York, 1993 (2 sheets).
Blocks and Marbles packaging, Blocks and Marbles Brand Toys, Inc, Crawfordsville, Indiana, 1987 (1 sheet).

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