Dishwasher
First Claim
1. A dishwasher, comprising:
- an ionized water producing portion for electrolyzing water supplied from a water supply to produce acid ionized water and alkaline ionized water;
a washing vessel for accommodating tableware and washing said tableware using supplied washing water; and
a discharging portion for discharging said washing water after being used for said washing from said washing vessel, wherein when washing and rinsing of said tableware are carried out in a plurality of washing steps each including said washing and said discharging, a first washing step of said plurality of washing steps uses said acid ionized water as said washing water; and
at least one of second and latter washing steps of said plurality of washing steps uses said alkaline ionized water as said washing water.
1 Assignment
0 Petitions
Accused Products
Abstract
When tableware is washed and rinsed in a dishwasher using a plurality of washing steps, the tableware is washed within 10 minutes using acid ionized water having a pH value of at most 6.0 and a temperature of at least 40° C. in a first washing step, whereby dirt is made to form cohesion and is prevented from being reattached to the tableware, so that a washing load in the following washing steps is reduced. Furthermore, the tableware is washed for at least 15 minutes with alkaline ionized water having a pH value of at least 8.5 and a temperature of at least 55° C. in at least one of the washing steps, whereby the washing effects on fats and oils, protein and starch are improved. In addition, while the two kinds of ionized water mentioned above are being produced simultaneously, one ionized water produced is supplied to a washing vessel for use in the present washing and the other ionized water produced is supplied to and stored in a water tank for use in the next washing, so that provision of two or more water tanks is not necessary, resulting in reduction in size of dishwashers and in manufacturing cost thereof. Moreover, two kinds of ionized water produced simultaneously are used as washing water without being discarded before use, so that water saving can be achieved.
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Citations
15 Claims
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1. A dishwasher, comprising:
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an ionized water producing portion for electrolyzing water supplied from a water supply to produce acid ionized water and alkaline ionized water; a washing vessel for accommodating tableware and washing said tableware using supplied washing water; and a discharging portion for discharging said washing water after being used for said washing from said washing vessel, wherein when washing and rinsing of said tableware are carried out in a plurality of washing steps each including said washing and said discharging, a first washing step of said plurality of washing steps uses said acid ionized water as said washing water; and at least one of second and latter washing steps of said plurality of washing steps uses said alkaline ionized water as said washing water. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A dishwasher, comprising:
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an electrolytic washing water adjusting portion for electrolyzing water supplied from a water supply to produce acid ionized water and alkaline ionized water; a washing vessel for accommodating tableware and washing said tableware using supplied washing water; and a discharging portion for discharging said washing water after being used for said washing from said washing vessel, wherein when washing and rinsing of said tableware are carried out in a plurality of washing steps each including said washing and said discharging, and at least one of said plurality of washing steps uses said alkaline ionized water with a PH value of at least 8.5 and having a temperature of at least 55°
C. as said washing water. - View Dependent Claims (8, 9)
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10. A dishwasher, comprising:
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an ionized water producing portion for electrolyzing water supplied from a water supply to produce acid ionized water and alkaline ionized water; a washing vessel for accommodating tableware and washing said tableware using supplied washing water; and a discharging portion for discharging said washing water after being used for said washing from said washing vessel, wherein when washing and rinsing of said tableware are carried out in a plurality of washing steps each including said washing and said discharging, said washing step for said rinsing uses said acid ionized water having a PH value not more than 6 and a temperature of at least 60°
C. as said washing water.
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11. A dishwasher for washing and rinsing tableware in a plural number of steps, comprising:
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means for simultaneously producing from water supplied from a water supply a prescribed amount of alkaline ionized water and a prescribed amount of acid ionized water which are required for each of said plurality of steps; and means for carrying out each of said plurality of steps using, in each step, any one of water supplied from said water supply, said prescribed amount of alkaline ionized water and said prescribed amount of acid ionized water which are produced simultaneously, wherein in said plurality of steps, the number of steps using washing water of a same property which are successively carried out by said step carrying out means is at most two for each of said alkaline ionized water and said acid ionized water. - View Dependent Claims (12)
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13. A dishwasher, comprising:
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producing means for producing two kinds of ionized water from water supplied from a water supply; storing means for storing supplied said ionized water; and washing means for washing tableware in a plurality of washing steps using supplied said ionized water, wherein said producing means includes first supplying means for supplying one of said produced two kinds of ionized water to said washing means for use in present said washing step while said ionized water is being produced, and second supplying means for supplying another of said produced two kinds of ionized water to said storing means for use in next said washing step while said ionized water is being produced, and said storing means includes third supplying means for supplying stored said another ionized water to said washing means when said next washing step is started. - View Dependent Claims (14, 15)
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Specification