Cup

Details Cup Cup

1998-08-19

1999-12-14

Muir, D Neal

Amusement devices: toys

Having permanent magnet

446 71, 446175, 446236, A63H 3326

Patent

active

060009853

ABSTRACT:
A cup consists of an inner body, an outer body and a rotatable base located between a hollow space formed between the inner body and the outer body. The rotatable base has a decorative paper and a plurality of magnets facing coils contained in an annular groove opening to the bottom of the outer body. A battery unit, a control circuit and the coils are contained in the annular groove. When the coils are energized by electricity of the battery unit, then the rotatable base together with the decorative paper is rotated by repelling force of magnetic fields produced by the coils interacting with the magnets of the rotatable base.

REFERENCES:
patent: 2441607 (1948-05-01), Walls
patent: 5275277 (1994-01-01), Gallegos
patent: 5314365 (1994-05-01), Chen
patent: 5525383 (1996-06-01), Witkowski
patent: 5913442 (1999-06-01), Wu

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