DRUM-TYPE WASHING MACHINE WITH COMPOSITE LIQUID DISCHARGE PIPELINE Russian patent published in 2001 - IPC

FIELD: domestic equipment. SUBSTANCE: liquid discharge pipeline extending between drain opening positioned in lower part of washing solution reservoir and opening positioned in upper part of washing solution reservoir has portion adapted for maintaining circulating washing solution in zone between both openings. Pipeline is further provided with branch pipe manufactured from solid material and having transparent portion. Optical emitter and sensor with optical receiver are mounted on transparent portion wall. Optical emitter is responsive to cloudiness of washing solution. Sensor which is normally subjected to intensive shaking in the process of squeezing is reliably retained in forked casing embracing branch pipe. Parts of casing contacting with transparent portion mate with branch pipe outer surface. Such arrangement of sensor eliminates loading due to shaking during squeezing process and prevents transparent portion of branch pipe from cloudiness due to settling of calcium onto it. EFFECT: increased efficiency and enhanced reliability in operation. 13 cl, 5 dwg