Method of checking the aseptic nature of washing before opening at least one door of a washing machine
First Claim
1. Method of checking an aseptic nature of a washing prior to opening at least one door of a washing machine, said method comprising, in order, the following successive steps:
- checking for an arrival of a minimum quantity of water in a tank of the machine;
checking for a presence of detergent products in said tank;
verifying that a minimum temperature is achieved by the water contained in said tank;
emission of a signal authorizing the opening of said door, a predetermined interval of time after obtaining said minimum temperature in said tank.
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Abstract
Method of checking the aseptic nature of washing before opening at least one door of the washing machine.
A washing machine (10) is fitted with at least one door (14) capable of being opened into a clean room (20) at the end of each washing-rinsing-spin drying cycle. So as to avoid this opening operation being performed if the conditions for asepsis of the washing are not ensured, opening is conditional on an opening authorization signal being emitted by a control unit (36). This unit checks, successively, the introduction of water into the tank (22) of the machine, the presence in the tank of detergent products, heating of the water to a minimum temperature and the maintainence of this temperature for a predetermined time interval. If any one of these conditions is not fulfilled, the automatic opening signal is not emitted.
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Citations
8 Claims
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1. Method of checking an aseptic nature of a washing prior to opening at least one door of a washing machine, said method comprising, in order, the following successive steps:
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checking for an arrival of a minimum quantity of water in a tank of the machine;
checking for a presence of detergent products in said tank;
verifying that a minimum temperature is achieved by the water contained in said tank;
emission of a signal authorizing the opening of said door, a predetermined interval of time after obtaining said minimum temperature in said tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification