Device for the metered delivery of a liquid washing or rinsing agent, for a washing machine
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United States of America Patent
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Nov 3, 2009
Grant Date -
Jul 14, 2005
app pub date -
Dec 8, 2004
filing date -
Dec 9, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A device for the metered delivery of a liquid washing or ringing agent for a washing machine and the like. The device includes a casing which is to be secured to the machine and which is provided with a refillable reservoir for the liquid agent in which is defined a delivery receptacle capable of holding an amount of liquid agent corresponding to a plurality of metered amounts, and an electrically controlled delivery valve device associated with the receptacle and capable of permitting a flow of liquid agent from the delivery receptacle towards the washing chamber of the machine, a level-indicator device associated with the delivery receptacle and capable of signalling the instantaneous level reached by the rinsing agent in the receptacle, and a control unit connected to the indicator and arranged to control the delivery valve device in accordance with predetermined modalities as a function of the signal provided by the level-indicator device.
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