Patent ID: 9687139
Date: 2017-06-27
CPC Classifications: A47L

Claim:
1. A method of dispensing a plurality of treating compositions into a multistage automatic washing machine comprising: providing a device inside a multistage automatic washing machine, the device comprising at least two chambers, each chamber containing a compositionally different treating composition, the device further comprising a wash liquor reservoir associated with the chambers, the wash liquor reservoir having a wash liquor inlet, a separate wash liquor outlet through which the wash liquor can drain continuously, and a wash liquor sensor disposed within the reservoir; operating the automatic washing machine to create wash liquor in the interior of the machine; collecting a sample of the wash liquor in the wash liquor reservoir by allowing the sample to travel from the interior of the machine through the wash liquor inlet and into the reservoir, while allowing the collected wash liquor to drain continuously from the wash liquor reservoir through the separate wash liquor outlet and back into the interior of the machine; and activating the chambers to release the treating compositions at different times in response to inputs from the wash liquor sensor.