Amusement devices: toys – Having permanent magnet – And member movable in spaced relation to moving magnet
Patent
1995-05-30
1997-07-29
Hafer, Robert A.
Amusement devices: toys
Having permanent magnet
And member movable in spaced relation to moving magnet
446444, A63H 3326, A63H 1800
Patent
active
056517149
ABSTRACT:
A toy with revolving vehicle comprises a cylindrical housing (1) in which a drive (4 to 10) for a miniature vehicle (20) is accommodated so as to move the vehicle (20) repeatedly over the outer wall (2) of the housing (1). The drive (4 to 10) for this purpose generates a magnetic field which rotates about a centerline (3) of the housing at least during operation, which field permeates the housing wall and is capable of applying itself to a permanent magnet (21) present in the miniature vehicle (20).
REFERENCES:
patent: 2452939 (1948-11-01), La Forge
patent: 2818680 (1958-01-01), Borsos
patent: 2870550 (1959-01-01), Decker
patent: 4757986 (1988-07-01), Hwang et al.
patent: 4917644 (1990-04-01), Sunshine
patent: 4937207 (1990-06-01), Simmell et al.
patent: 5540187 (1996-07-01), Udelle et al.
Hafer Robert A.
Muir D. Neal
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