Display element for employment in a magnetic anti-theft security system

US6689490B2 · kind B2 · utility

Assignee

• Vacuumschmelze GmbH & Co. KG · DE

Inventors

• Hartwin Weber · Hanau, DE
• Gernot Hausch · Langenselbold, DE
• Ottmar Roth · Ortenburg, DE

Key dates

• Filing date: Feb 21, 2003
• Grant date: Feb 10, 2004
• Expiry date: Feb 21, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12986
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Display Element for Employment in a Magnetic Anti-theft Security System A semi-hard magnetic alloy for activation strips in magnetic anti-theft security systems is disclosed that contains 8 to 25 weight % Ni, 1.5 to 4.5 weight % Al, 0.5 to 3 weight % Ti and balance iron. The alloy is distinguished over known, employed alloys by excellent magnetic properties and a high resistance to corrosion. Further, the inventive alloy can be excellently cold-worked before the annealing.