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:
Jul. 10, 2001
Filed:
Apr. 08, 1999
Manfred Ruhrig, Weinheim, DE;
Meto International GmbH, Hirschhorn, DE;
Abstract
The present invention relates to an element for electronically securing articles or for sensor technology, comprising a striplike or wirelike Barkhausen material of given length, which in an external alternating magnetic field is excited to emit a characteristic signal, and a soft magnetic material which is associated with the Barkhausen material. The soft magnetic material comprises individual portions of a predetermined length, which are disposed at a predetermined spacing from one another, and that the portions of the soft magnetic material are positioned relative to the Barkhausen material such that the magnetic stray fields they generate couple with the magnetization of the Barkhausen material.