Magnetic top toy

Details Magnetic top toy Magnetic top toy

2007-10-02

2007-10-02

Kim, Eugene (Department: 3711)

Amusement devices: toys

Having permanent magnet

Contacting, mutually attracted members

C446S263000, C446S129000, C273S109000

Reexamination Certificate

active

11086499

ABSTRACT:
A wheel-shaped top with magnetic spindles projecting from the body. A circular disc with a beaded rim is mounted on each end of a shaft; the rims of the discs forming a two-rail track encircling the shaft. A handle has two legs attached to opposite ends of the shaft. The spindles are magnetically attached to the two-rail track. The top orbits around the track in response to hand-manipulation of the handle; it is launched from the track when the orbital speed is sufficient to centrifugally separate the spindles from the track to spin on a surface, and can be magnetically retrieved, while spinning, by engagement of the spindles with the shaft, or with one or both of the discs.

REFERENCES:
patent: 180573 (1876-08-01), Goodwin et al.
patent: 870146 (1907-11-01), Webb
patent: 884931 (1908-04-01), Johansson
patent: 1322217 (1919-11-01), Anderson
patent: 1366535 (1921-01-01), Harrington
patent: 1403200 (1922-01-01), Sandstrom
patent: 2034293 (1936-03-01), Hacker
patent: 2818680 (1958-01-01), Borsos
patent: 3099105 (1963-07-01), Martinez
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patent: 4031660 (1977-06-01), Chen
patent: 4290225 (1981-09-01), MacCarthy
patent: D275582 (1984-09-01), MacCarthy
patent: D290857 (1987-07-01), Lohr
patent: D436383 (2001-01-01), Chesler

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