Amusement devices: games – Board games – pieces – or boards therefor – Electrical
Patent
1989-02-01
1991-01-01
Coven, Edward M.
Amusement devices: games
Board games, pieces, or boards therefor
Electrical
273237, 273239, 434128, A63F 302
Patent
active
049813005
ABSTRACT:
A sensory electronic game which includes a board having a number of defined positions each provided with an isotropic field sensor such as a reed switch which has open and closed positions depending upon the presence or absence of a magnetic field, and two sets of playing pieces. All pieces have a magnet with its N-S axis substantially upright to provide a magnetic field which will open or close the sensor when a piece is positioned on the associated board position. To avoid a lack of detection if one piece is quickly replaced by another piece, the pieces of one set have the N pole facing downwardly whilst the pieces of the other set have the S pole facing downwardly. Then, by detecting the opening and closing of the sensors including momentary open and closed positions during capture or replacement of a piece of one set by a piece of another set, movement of pieces can be determined.
REFERENCES:
patent: 3761092 (1973-09-01), Shieff
patent: 3843132 (1974-10-01), Ferguson
patent: 4005866 (1977-02-01), Marcil
patent: 4013293 (1977-03-01), Hess et al.
patent: 4545582 (1985-10-01), Andrews
patent: 4824376 (1989-04-01), Arash
Coven Edward M.
Harrison Jessica J.
Saitek Limited
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