Magnetic position marker

Details Magnetic position marker Magnetic position marker

1992-05-27

1994-04-26

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428259, 428900, 340551, B32B 700

Patent

active

053065522

ABSTRACT:
A magnetic marker, comprising a first fabric base sheet, a plurality of magnetized fibers attached to a surface of the first fabric base sheet by bonding means, and a second fabric base sheet secured to the surface of the first fabric base sheet so as to interpose the magnetized fibers between the first and second fabric base sheets. The magnetic marker using magnetized fibers can withstand repeated piercing which is encountered in the application for detecting the position of the ground fabric during the process of needling for the production of felt. The magnetized fibers are firmly secured between the two fabric base sheets, optionally reinforced by a multiplicity of perpendicularly arranged yarn, that the magnetized fibers can retain the capability to generate magnetic flux even after repeated use.

REFERENCES:
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patent: 5001331 (1991-03-01), Leestemaker
patent: 5003291 (1991-03-01), Strom-Olsen et al.
patent: 5015992 (1991-05-01), Strom-Olsen et al.
patent: 5015993 (1991-05-01), Strom-Olsen et al.
patent: 5110651 (1992-05-01), Massard et al.

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