Amusement devices: toys – Having permanent magnet – And member movable in spaced relation to moving magnet
Patent
1994-04-19
1995-10-31
Hafer, Robert A.
Amusement devices: toys
Having permanent magnet
And member movable in spaced relation to moving magnet
446133, 446484, 40426, A63H 3326
Patent
active
054624720
ABSTRACT:
A magnetic induction toy includes a casing cowered with a cover to hold a battery, a holder frame fixed within the casing to hold an electromagnet and a rocker arm by a pivot pin, the electromagnet being connected to the battery, the rocker arm having a top permanent magnet repulsed or attracted by a permanent magnet placed above the cover and two lateral permanent magnets to repulse against the electromagnet, and round ornaments placed above the cover, each round ornament having at least one permanent magnet respectively reacted with the top permanent magnet on the rocker arm such that said rocker arm is induced to oscillate on the pivot pin by placing the operation control permanent magnet on the cover with one pole facing toward the permanent magnet on the base of the rocker arm to produce a magnetic repulsion and then moving the operation control permanent magnet along a course guide sign, the rocker arm being stopped by placing the other pole of the operation control permanent magnet on the cover toward the permanent magnet on the base of the rocker arm to produce a magnetic attraction.
REFERENCES:
patent: 312178 (1885-02-01), Bacon
patent: 962069 (1910-06-01), Walters et al.
patent: 2974265 (1961-03-01), Thoma
patent: 3717951 (1973-02-01), Ljungdahl
patent: 4157630 (1979-06-01), Sawai
patent: 4727299 (1988-02-01), Liu
patent: 4728871 (1988-03-01), Andrews
patent: 5370569 (1994-12-01), Mo-Hsin
Carlson Jeffrey D.
Hafer Robert A.
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