Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1980-11-17
1982-08-24
Miller, J. D.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
H01F 1300
Patent
active
043464254
ABSTRACT:
A mass degaussing apparatus is disclosed which comprises a movable dolly capable of holding a plurality of magnetic tapes. Automatic means are provided for moving the dolly into and out of a degaussing chamber wherein means are provided to generate an electromagnetic field. The apparatus is capable of degaussing a large plurality of magnetic tapes in a single operation.
REFERENCES:
patent: 3506884 (1970-04-01), McKinley
patent: 3938011 (1976-02-01), Littwin
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Miller J. D.
Schroeder L. C.
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