Washing agents dispenser device for a domestic washing machine, namely a dishwasher
First Claim
1. (amended). 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:
- a passage adapted to put the inside of the said tank in communication with a discharge outlet for said liquid washing agent;
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, and comprising safety or control means operative along said passage to prevent washing agent downflow from said tank to said passage, independently from the position or state of said first plugging means.
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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
37 Claims
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1. (amended). 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 the said tank in communication with a discharge outlet for said liquid washing agent;
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, and comprising safety or control means operative along said passage to prevent washing agent downflow from said tank to said passage, independently from the position or state of said first plugging means. - 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, 30, 31, 37)
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32. (amended). 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 washing agent, said arrangement comprising:
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a dosing space, being adapted to receive and contain at least a portion of the liquid washing agent contained in said tank;
a passage, being adapted to permit downflow of liquid washing agent from said dosing chamber to a discharge or dispensing outlet of said liquid washing agent;
first plugging means acting 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;
at least an actuator, capable of actuating said first plugging means, and comprisingsafety or control 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 dosing space to said discharge outlet. - View Dependent Claims (33, 35, 36)
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34. (amended). 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, the method providing:
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admission of at least a portion of the liquid washing agent from said tank to a dosing space, a subsequent dispensing through a discharge outlet of liquid washing agent contained in said dosing space outside of said dispenser, where first plugging means can be controlled for assuming a first position, due to which the liquid washing agent cannot reach said discharge outlet, and a second position, due to which the liquid washing agent can reach said discharge outlet, wherein when said first plugging means are in said second position, downflow of liquid washing agent from said tank to said dosing space is prevented, and when said first plugging means are in said first position, downflow of liquid washing agent from said dosing space is permitted to said discharge outlet.
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Specification