Soap dispenser with authentication check of the refill
US9642501B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 25, 2012 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Dec 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/18
- WIPO fieldControl
- WIPO sectorInstruments
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 ink is arranged to cause the ink to emit light at a second different wavelength. A sensor (14) receives light emitted by the 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.