Magnetic marker and manufacturing method therefor

Details Magnetic marker and manufacturing method therefor Magnetic marker and manufacturing method therefor

1995-12-06

1997-02-25

Zimmerman, John

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

428928, 340551, 340572, 1562724, G08B 1324

Patent

active

056057687

ABSTRACT:
A compact and superior magnetic marker for an electronics apparatus for surveillance of article comprises at one or more wire members and a plane member contacting substantially directly to each other. An angle of the magnetic easy axis of the plane member relative to the longitudinal direction of the wire member is between 40.degree. and 90.degree. to show large Barkhausen reversal. An influence of demagnetizing field can be reduced by using the simple structure. The magnetic marker can be produced continuously at a low cost.

REFERENCES:
patent: 4652863 (1987-03-01), Hultman
patent: 4960651 (1990-10-01), Pettigrew
patent: 5130698 (1992-07-01), Rauscher
patent: 5181020 (1993-01-01), Furukawa et al.
patent: 5181021 (1993-01-01), Lee et al.
patent: 5519379 (1996-05-01), Ho et al.
patent: 5538803 (1996-07-01), Gambino et al.

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