Apparatus for applying oscillating electromagnetic fields, particularly for treating liquid, pasty, semi-solid or granular products, and method of use of such apparatus and system incorporating same
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United States of America Patent
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Aug 28, 2012
Grant Date -
Feb 18, 2010
app pub date -
Mar 10, 2006
filing date -
Jun 21, 2005
priority date (Note) -
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Abstract
The invention relates to an apparatus for applying oscillating magnetic fields, particularly for treating liquid, pasty, semi-solid or granular products, to a method of use of such apparatus, and to a system incorporating it. The apparatus comprises at least one pipe of an electrically insulating material for conveying the products to be treated, at least one plurality of electrodes around the periphery of the pipe, and means for generating one high frequency oscillating electric voltage. Each of the electrodes has a substantially annular shape, with an inner surface having a minimum radial distance from the outer cylindrical surface of the at least one pipe, which is sufficient to prevent electric currents from passing to the product to be treated. The inner surface has at least one substantially conical edge with a predetermined conicity angle to allow use of relatively high voltages with no risk of discharges to air.
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