Continuous process and reel-to-reel transport apparatus for transverse magnetic field annealing of amorphous material used in an EAS marker
US5676767A · kind A · utility
26Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Apr 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N35/85
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A magnetostrictive element for use in a magnetomechanical electronic article surveillance marker is formed by annealing a continuous ribbon of an amorphous metal alloy. The alloy ribbon is transported from reel to reel through an oven in which a transverse saturating magnetic field is applied to the ribbon. The annealed ribbon is cut into discrete strips which are suitable for use as magnetostrictive elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.