Print-type magnetic dartboard

Details Print-type magnetic dartboard Print-type magnetic dartboard

2007-03-27

2007-03-27

Graham, Mark S. (Department: 3711)

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

Reexamination Certificate

active

11229656

ABSTRACT:
A dartboard has board member, and the board member has a plurality of target blocks to be stuck by darts. The back side of the board member has an induction layer and a magnetic member. The magnetic member provides a fixed magnetic field, and the induction layer has a substrate and a circuit on the substrate. A dart with a steel iron or iron alloy point sticks into the board member, and disturbs the distribution of the magnetic field provided by the magnetic member, causing electromagnetic induction and inducing a current in the circuit of the induction layer to provide an automatic score.

REFERENCES:
patent: 6155570 (2000-12-01), Allison et al.
patent: 2086243 (1982-05-01), None
patent: 2342053 (2000-04-01), None

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