Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1981-01-07
1982-08-24
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
H01F 1300
Patent
active
043464262
ABSTRACT:
A magnetic tape de-gausser includes a pair of electromagnets which are arranged to project a magnetic field through a magnetic tape reel to magnetically erase the magnetic tape. The electromagnets are mounted to be movable so as to tightly accomodate various size tape reels between the electromagnets. Structures are provided to control the separation between the electromagnets, to prevent a tape reel from destructively contacting an electromagnet, and to control the movement of a tape reel in rotation towards and away from electromagnets.
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Baumann John S.
Kacin Joseph J.
Knipp Roger W.
Fluxcom, Inc.
Moose Jr. Harry E.
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