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:
Feb. 02, 2016
Filed:
Jan. 28, 2011
Sameer Mohammed Bargir, Coventry, GB;
Paul Howland, Andover, GB;
Sameer Mohammed Bargir, Coventry, GB;
Paul Howland, Andover, GB;
DE LA RUE INTERNATIONAL LIMITED, Basingstoke, GB;
Abstract
An apparatus is provided for magnetically imprinting indicia into a layer on an article, the layer comprising a composition in which magnetic or magnetizable particles are suspended. The apparatus comprises: a soft magnetizable sheet, having an outer surface arranged to face the article in use, and an opposing interior surface; and a permanent magnet, shaped such that its magnetic field contains perturbations giving rise to indicia. The permanent magnet is disposed adjacent the interior surface of the soft magnetizable sheet. The soft magnetizable sheet enhances the perturbations of the magnetic field of the permanent magnet such that when the layer to be imprinted is located adjacent the outer surface of the soft magnetizable sheet, the magnetic or magnetizable particles are oriented by the magnetic field to display the indicia.