Ferromagnetic fibers having use in electronical article surveillance and method of making same
US5003291A · kind A · utility
15Cited by
10References
35Claims
0Family size
Inventors
Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F3/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A ferromagnetic fiber has been fabricated that has particular use in the field of electronic article surveillance (EAS). The ferromagnetic fiber is produced by using a spinning disk type of device that engages a bath of molten alloy having the desired compositions for the fiber. The use of ferromagnetic fibers has resulted in the ability to produce EAS markers of such a small length that they can be dispensed using a commercial labeler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.