WASHING MACHINE OF DRUM TYPE Russian patent published in 2010 - IPC D06F39/08 

FIELD: textile, paper.

SUBSTANCE: washing machine of drum type includes rotary drum for linen placement, drain valve, drain pump, controller and filtration device. Filtration device includes filter body installed between drain valve and drain pump, filter arranged in filter body, plug to seal mount hole and magnetically operated sealed switch. When the plug is placed in specified position, magnetically operated sealed switch is activated and generates signal of activation arriving to controller. When the plug is placed not in specified position, magnetically operated sealed switch is deactivated and generates signal of deactivation arriving to controller. If in process of washing or rinsing it is detected that magnetically operated sealed switch generates deactivation signal, than controller stops this process. If during water drain it is detected that magnetically operated sealed switch generates a deactivation signal, then controller stops the process of drain, closes drain valve and starts drain pump.

EFFECT: washing machine makes it possible to prevent leakage of water for washing and provides for safe washing of linen even when filter is opened in process of washing, rinsing or drain of water.

4 cl, 9 dwg