Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1995-05-08
1996-11-12
Fleming, Fritz M.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
361151, 361267, H01F 1300
Patent
active
055746160
ABSTRACT:
To degauss cassettes of magnetic tape, a magnetic field is applied to the magnetic material while the magnetic material moves with respect to the field in a single air gap of a flux density of at least 1,000 gauss and at an angle between 20 degrees and 70 degrees from the horizontal of the magnetic tape for a time priod of at least one second and the field is alternated at a frequency of at least ten hertz. The magnetic material may be rotated while it is in the field.
REFERENCES:
patent: 4423460 (1983-12-01), Jackson et al.
patent: 4639821 (1987-01-01), Littwin et al.
patent: 4751608 (1988-06-01), Schultz
patent: 4897759 (1990-01-01), Becker
patent: 5198959 (1993-03-01), Scholtysik et al.
patent: 5204801 (1993-04-01), Becker et al.
patent: 5270899 (1993-12-01), Saito
patent: 5416664 (1995-05-01), Becker et al.
Becker Donald G.
Etherton David J.
Carney Vincent L.
Fleming Fritz M.
Garner Industries, Inc.
LandOfFree
Degaussing technique does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Degaussing technique, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Degaussing technique will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-567823