Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-01-30
2000-05-09
Wu, Daniel J.
Communications: electrical
Condition responsive indicating system
Specific condition
3405723, 3405727, 340551, 361149, G08B 1314
Patent
active
060609885
ABSTRACT:
A device for deactivating a magnetomechanical EAS marker includes a coil and circuitry for energizing the coil to generate an alternating magnetic field. The coil is wound around a magnetic core. The core may be cruciform with four arms, on each of which a respective coil is provided. Alternatively, the core may be generally square and planar, with two coils wound around the core in different respective directions.
REFERENCES:
patent: 3665449 (1972-05-01), Elder et al.
patent: 3781661 (1973-12-01), Trikilis
patent: 4300183 (1981-11-01), Richardson
patent: 4423460 (1983-12-01), Jackson et al.
patent: 4510489 (1985-04-01), Anderson, III et al.
patent: 4633250 (1986-12-01), Anderson, III et al.
patent: 5049856 (1991-09-01), Crossfield
patent: 5051726 (1991-09-01), Copeland et al.
patent: 5061941 (1991-10-01), Lizzi et al.
patent: 5142292 (1992-08-01), Chang
patent: 5210524 (1993-05-01), Schwarz et al.
patent: 5341125 (1994-08-01), Plonsky et al.
patent: 5345222 (1994-09-01), Davies et al.
patent: 5459451 (1995-10-01), Crossfield et al.
patent: 5469142 (1995-11-01), Bergman et al.
patent: 5493275 (1996-02-01), Easter
patent: 5625339 (1997-04-01), Zarembo et al.
patent: 5805065 (1998-09-01), Schwarz et al.
Coffey Kevin R.
Copeland Richard L.
Sensormatic Electronics Corporation
Tweel , Jr. John
Wu Daniel J.
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