Patent ID: 7481081
Filing Date: 2009-01-27
Classification: D06F

Abstract:
1. A non-intrusive device for automatically dosing at least one liquid laundry care composition to an automatic laundry washing machine, from a laundry care composition container the device located along water supply feed to the washing machine with an incoming water supply feed to the device and outgoing water supply feed out of the device, the device comprising: a Venturi tube, the both ends of the tube protruding externally to the device for connections to the incoming and the outgoing water supply feed, a dip tube for placing into laundry care composition container, the throat of the Venturi tube connected by a conduit to the dip tube; a sensor for determining water flow through the incoming water supply feed, the sensor located at the incoming water supply feed and connected to an electronic circuit containing a clock and a processing unit programmed with a machine-generic algorithm to control a solenoid valve, coupled to the same circuit and located within the conduit connecting the Venturi tube and the dip tube, the valve opening or closing the flow of the laundry care composition through the dip tube from the laundry care composition container.