Patent ID: 8064183

Claim:
A bi-directional degaussing apparatus comprising: a bobbin having a front wall, a back wall, and two opposing side walls defining an interior chamber and an exterior continuous wall, said interior chamber having an upper opening and a lower opening; a coil capable of generating magnetic forces greater than 2000 A positioned around said exterior of said bobbin and shielded to cause the magnetic forces to be directed into said interior chamber; a movable floor for sealing said bottom opening, said floor positionable beneath said lower opening to support magnetic media placed within said chamber; a movable cover for sealing said upper opening, said cover positionable over said upper opening to seal magnetic media placed within said chamber; a capacitor bank for storing energy, said capacitor bank electrically coupled to said coil; a gate controller for generating a bi-directional release of stored energy from said capacitor bank to said coil, said coil providing a degaussing current to said interior chamber.