CYLINDER FOR ALIGNING MAGNETIC OR MAGNETIZABLE PARTICLES, SYSTEM FOR MOUNTING AND/OR POSITIONING MAGNETIC ELEMENTS AT THE CYLINDER, AND MACHINE FOR GENERATING OPTICALLY VARIABLE IMAGE ELEMENTS
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Dec 22, 2022
filing date -
Dec 22, 2022
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Abstract
Examples include a cylinder for aligning magnetic or magnetizable particles contained in a coating agent on a substrate in a region of an outer circumference of the cylinder in a matrix-like manner. A number of n×m magnetic elements (where n, m are integers>1) that provide magnetic fields are arranged in n rows extending in an axially parallel manner and in m columns extending in a circumferential direction. At least two magnetic elements are provided one behind the other in the same column, disposed at magnetic element carriers that differ from one another, and can be positioned on the cylinder in the circumferential direction independently of one another. The at least two magnetic elements are mounted so as to be adjustable relative to the magnetic element carrier carrying the magnetic element in the circumferential direction within an adjustment range.
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