摘要:
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.
摘要:
An arrangement for detecting toilet flushing by utilizing an acoustically-based motion detector in a simple amplifier circuit. The detector is in contact with the toilet bowl, which acts as a resonant system. Upon detection of such flushing, a subsequent event, such as a cleaning or disinfecting a toilet, ventilating the surrounding area or releasing deodorant into the area, may be triggered. The mechanically resonant system with the provided circuit is capable of separating frequencies from the frequency of the flushing water in a specific bowl design and provides a high degree of immunity to unwanted ambient frequencies. In addition, the system consumes low power and is suitable for battery power operation.
摘要:
A dispenser comprising a base unit with an actuation mechanism for dispensing liquid and a refill unit insertible into the base in an inverted configuration with its outlet lowermost to supply liquid to the base. The refill comprises an annular wall projecting into the base and defining an outlet from the refill. The annular wall is closable by a valve element. The base comprises a hollow spigot and an annular seal surrounding and spaced from the spigot whereby insertion of the refill into the base causes the spigot to enter the annular wall and lift the valve element from the annular wall to define a flow path from the refill to the spigot. The base also comprises a proximity sensor and an inclination sensor each of which may independently or jointly trigger the actuation mechanism causing the device to operate to deliver one or more doses of liquid from the dispenser.