Washing agents dispenser device for a domestic washing machine, namely a dishwasher
First Claim
1. A dispensing device of washing agents for a household washing machine, said dispensing device comprising a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said liquid washing agent, said arrangement comprising:
- a passage adapted to put the inside of said tank in communication with a discharge outlet for said liquid washing agent;
a dosing chamber for said liquid washing agent in hydraulic communication with said tank and said passage, said dosing chamber being adapted for at least partially dispensing said liquid washing agent contained therein in a washing cycle of said household washing machine;
first plugging means acting on said passage and capable of taking a first position, in which the washing agent cannot reach said discharge outlet, and a second position, in which the washing agent is able to reach said discharge outlet;
first actuating means producing actuation of said first plugging means, and further comprising second plugging means operative along said passage to prevent washing agent downflow from said tank to said dosing chamber, second actuating means operatively connected to said second plugging means and adapted to produce actuation of said second plugging means independently of the position of said first plugging means, the first plugging means being provided for dispensing at least part of the liquid agent contained in said dosing chamber in a washing cycle of said household washing machine.
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Accused Products
Abstract
Dispensing device of washing agents for a household washing machine, in particular a dishwasher, said dispenser having at least a tank for a liquid washing agent and an arrangement for dispensing a dose of said liquid washing agent, wherein this arrangement comprises: a passage, being adapted to put the inside of the tank in hydraulic communication with a discharge outlet for said liquid washing agent; first plugging means, act on said passage and capable of taking a first position due to which the washing agent cannot reach said discharge outlet, and a second position due to which the washing agent is able to reach said discharge outlet; actuating means producing actuation of said first plugging means. According to the invention, controllable safety means act along said passage are provided, which normally operate for preventing washing agent downflow from said tank to said passage, independently from the position or state of the first plugging means.
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Citations
51 Claims
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1. A dispensing device of washing agents for a household washing machine, said dispensing device comprising a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said liquid washing agent, said arrangement comprising:
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a passage adapted to put the inside of said tank in communication with a discharge outlet for said liquid washing agent;
a dosing chamber for said liquid washing agent in hydraulic communication with said tank and said passage, said dosing chamber being adapted for at least partially dispensing said liquid washing agent contained therein in a washing cycle of said household washing machine;
first plugging means acting on said passage and capable of taking a first position, in which the washing agent cannot reach said discharge outlet, and a second position, in which the washing agent is able to reach said discharge outlet;
first actuating means producing actuation of said first plugging means, and further comprising second plugging means operative along said passage to prevent washing agent downflow from said tank to said dosing chamber, second actuating means operatively connected to said second plugging means and adapted to produce actuation of said second plugging means independently of the position of said first plugging means, the first plugging means being provided for dispensing at least part of the liquid agent contained in said dosing chamber in a washing cycle of said household washing machine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A dispensing device of washing agents for a household washing machine, said dispensing device comprising a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said washing agent, said arrangement comprising:
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means forming a dosing space adapted to receive and contain at least a portion of the liquid washing agent contained in said tank, said portion of the liquid agent being at least partially dispensed in a washing cycle of said household washing machine;
a passage adapted to permit downflow of liquid washing agent from said dosing space to a discharge outlet of said liquid washing agent;
first plugging means acting on said passage and capable of taking a first position at which the washing agent cannot reach said discharge outlet, and a second position, which the washing agent is able to reach said discharge outlet;
an actuator capable of actuating said first plugging means, and comprising safety means switching between first and second operating conditions, where;
in the first operating condition, reached when said first plugging means are in said second position, said safety means prevent downflow of liquid washing agent from said tank to said dosing space;
in the second operating condition, reached when said first plugging means are in said first position, said safety means permit downflow of liquid washing agent from said tank to said dosing space in order to define a washing liquid agent dose to be at least partially dispensed in a washing cycle of said household washing machine. - View Dependent Claims (31)
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32. A method for dispensing a liquid washing agent in a household washing machine, by means of a dispenser having at least a tank for containing a liquid washing agent comprising:
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admission of at least a portion of the liquid washing agent from said tank to a dosing space defining a liquid washing agent dose to be at least partially dispensed in a washing cycle of said household washing machine, admission of a portion of the liquid washing agent from said dosing space to a dispensing space wherefrom dispensing said agent is permitted, dispensing through a discharge outlet, at least a part of the liquid washing agent contained in said dosing space outside of said dispenser during a washing cycle of said household washing machine, by moving first plugging means between a first position, at which the liquid washing agent cannot reach said discharge outlet from said dispensing apace, and a second position at which the liquid washing agent can reach said discharge outlet from said dispensing space, downflow of liquid washing agent from said dosing space to said dispensing space being prevented when said first plugging means are in said second position, and downflow of liquid washing agent from said dosing space to said dispensing space being permitted when said first plugging means are in said first position. - View Dependent Claims (33, 34)
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35. A household washing machine comprising a dispensing device of washing agents, said dispensing device comprising a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said liquid washing agent, said arrangement comprising:
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a passage adapted to put the inside of said tank in communication with a discharge outlet for said liquid washing agent;
a dosing chamber for said liquid washing agent in hydraulic communication with said tank and said passage, said dosing chamber being adapted for at least partially dispensing said liquid washing agent contained therein in a washing cycle of said household washing machine;
first plugging means acting on said passage and capable of taking a first position, in which the washing agent cannot reach said discharge outlet, and a second position, in which the washing agent is able to reach said discharge outlet;
first actuating means producing actuation of said first plugging means, and further comprising second plugging means operative along said passage to prevent washing agent downflow from said tank to said dosing chamber;
second actuating means operatively connected to said second plugging means and adapted to produce actuation of said second plugging means independently of the position of said first plugging means, the first plugging means being provided for dispensing at least part of the liquid agent contained in said dosing chamber in a washing cycle of said household washing machine.
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36. A dispensing device of washing agents for a household washing machine, said dispenser having at least a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said liquid washing agent, said arrangement comprising:
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a passage adapted to put the inside of said tank in communication with a discharge outlet for said liquid washing agent;
a dosing chamber of said liquid washing agent in hydraulic communication with said tank;
first plugging means acting on said passage and capable of taking a first position, in which the washing agent cannot reach said discharge outlet, and a second position, in which the washing agent is able to reach said discharge outlet;
actuating means producing actuation of said first plugging means;
second plugging means, operating along said passage and normally operative along said passage to prevent washing agent downflow from said tank to said dosing chamber;
a dispensing chamber of said liquid washing agent being in hydraulic communication with said dosing chamber, said first plugging means operating between said dosing chamber and said dispensing chamber, the dispensing chamber being in hydraulic communication with the discharge outlet. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A household washing machine comprising a dispensing device of washing agents, said dispensing device having at least a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said liquid washing agent, said arrangement comprising:
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a passage adapted to put the inside of said tank in communication with a discharge outlet for said liquid washing agent and comprising a dosing chamber of said liquid washing agent in hydraulic communication with said tank;
first plugging means acting on said passage and capable of taking a first position, in which the washing agent cannot reach said discharge outlet, and a second position, in which the washing agent is able to reach said discharge outlet;
actuating means producing actuation of said first plugging means;
second plugging means, operating along said passage and normally operative along said passage to prevent washing agent downflow from said tank to said dosing chamber;
said passage further comprising a dispensing chamber of said liquid washing agent being in hydraulic communication with said dosing chamber, said first plugging means operating between said dosing chamber and said dispensing chamber, the dispensing chamber being in hydraulic communication with the discharge outlet.
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51. A household washing machine comprising a dispensing device of washing agents, said dispensing device comprising a tank for containing a liquid washing agent and an arrangement for dispensing a dose of said washing agent, said arrangement comprising:
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a dosing space adapted to receive and contain at least a portion of the liquid washing agent contained in said tank, said portion of the liquid agent being at least partially dispensed in a washing cycle of said household washing machine;
a passage adapted to permit downflow of liquid washing agent from said dosing space to a discharge outlet of said liquid washing agent;
first plugging means acting on said passage and capable of taking a first position at which the washing agent cannot reach said discharge outlet, and a second position, at which the washing agent is able to reach said discharge outlet;
an actuator capable of actuating said first plugging means, and comprising safety means switching between first and second operating conditions, where;
in the first operating condition, reached when said first plugging means are in said second position, said safety means prevent downflow of liquid washing agent from said tank to said dosing space;
in the second operating condition, reached when said first plugging means are in said first position, said safety means permit downflow of liquid washing agent from said tank to said dosing space in order to define a washing liquid agent dose to be at least partially dispensed in a washing cycle of said household washing machine.
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Specification