Soap Dispenser With Authentication Check Of The Refill
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United States of America Patent
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app pub date -
Mar 8, 2017
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May 27, 2011
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Abstract
A dispenser for dispensing a product, the dispenser comprising a base unit (2) into which a refill (1) containing the product is removably insertable in a fixed position. The refill has a taggant ink (12) on part of its external surface. The base has a light source (13) to illuminate the ink. The light source has a first wavelength and the taggant ink is arranged to cause the ink to emit light at a second different wavelength. A sensor (14) receives light emitted by the taggant ink upon illumination by the light source. A control circuit receives signal indicative of the wavelength of the detected light from the sensor, compares it with stored data, and prevents operation of a dispensing mechanism unless the refill is authentic.
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