Combined conductivity and magnetic currency validator
AssigneeBrandt, Inc.
InventorDavid R. Bryce
Life of this patent
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Abstract
A currency validator for testing both the magnetic and electrically conductive properties of a currency note in which core legs of magnetic and conductive material form spaced first and second gaps. Windings carried by the legs produce signals indicative of the magnetic property of a note moving across the first gap. A detector connected across the second gap indicates the presence of conductive material bridging the first gap.
Claims11
A currency validator for producing an indication of a suspect currency note including in combination means for performing a first test of the magnetic properties of a note, means for performing a second test of the electrical conductivity of the note, and means responsive to said test performing means for producing said indication if said note fails either of said tests.
A currency note validator for testing the genuineness of a currency note including in combination, a core comprising a pair of legs of magnetic and electrically conductive material, said legs forming a first gap, an electrical winding carried by said legs, means for conveying a currency note to be tested across said gap, first testing means including said windings for testing the magnetic properties of said note and second testing means responsive to the presence of conductive material bridging said first gap for testing the electrical conductivity of said note.
Dependencies are inferred from the claim text.