The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 2011
Filed:
Sep. 07, 2007
Ottmar Roth, Gründau, DE;
Hartwin Weber, Hanau, DE;
Ottmar Roth, Gründau, DE;
Hartwin Weber, Hanau, DE;
Vacuumschmelze GmbH & Co. KG, Hanau, DE;
Abstract
Disclosed are markers for a magnetic theft protection system, which markers contain at least one oblong alarm strip made of an amorphous ferromagnetic alloy and at least one activation strip made of a molybdenum-free semi-hard magnetic alloy consisting essentially of NiMFe, wherein M is one or more of the elements from the group including Cr, W and V, and wherein a and b are weight percentages such that 15% by weight≦a≦25% by weight, and 2% by weight≦b≦8% by weight. The activation strip has a coercive force Hof 10 A/cm to 25 A/cm and a remanence Bof at least 0.9 T.