B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
141/53
B08B 7/04 (2006.01) A47L 15/00 (2006.01) A47L 15/42 (2006.01)
Patent
CA 1241893
DISHWASHING APPARATUS AND METHOD Abstract of the Disclosure A multiple-fill dishwasher and method includes a wash chamber having a sump at the bottom thereof, a remotely controlled inlet valve for supplying cleansing liquid into the sump, a drain for draining liquid and entrained soil from the sump, and a recirculating pump having a spraying system receiving the output thereof for spraying liquid onto soiled ware contained within the chamber. A control circuit controlls the valve, drain means, and pump to perform a selected one of a plurality of different cleansing cycles which are automatically selected according to the extent of soil on the ware. An operator-actuated switch for commencing operating of the control circuit, and a chamber for collecting soil particles in a concentrated fashion during liquid recirculation, are also provided. The improvement comprises a sensor responsive to a predetermined particulate soil concentration in the soil collection chamber, the sensor being operable during liquid recirculation to cause the control circuit to select either a cycle designed to wash heavily soiled ware, or a cycle designed to wash lightly soiled ware.
433073
Gowling Lafleur Henderson Llp
Kitchenaid Inc.
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