Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David Michael Furneaux0
Bernard Joseph Campbell0
Date of Patent
April 20, 2010
0Patent Application Number
101687260
Date Filed
December 22, 2000
0Patent Primary Examiner
Patent abstract
An electrical discharge produces an acoustic impulse, and a reflection of the impulse from the upper coin in a coin stack is sensed so that the level of the coin stack can be determined from the time taken for the reflection to be received. Alternatively, or additionally, the acoustic impulse can be used to detect coin jams, the presence and/or width of a coin store, the state of a coin routing gate or the quantity of a vendible product.
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