Abstract:
A DOMESTIC CLOTHES WASHER HAS A PAIR OF NESTED TUBS ONE OF WHICH IS IMPERFORATE TO RETAIN THE WASHING FLUID, THE ONE OF WHICH IS PERFORATE AND ROTATABLE TO CENTRIFUGE THE WASHING FLUID FROM CLOTHES BEING WASHED THEREIN. AN AGITATOR IN THE PERFORATE TUB PROVIDES A PULSATING TOROIDAL CIRCULATION OF WASHING FLUID. THE BOTTOM WALL OF THE PERFORATE TUB HAS A SERIES OF SEDIMENT REMOVAL HOLES PROTECTED FROM THE PULSING CIRCULATION OF WASHING FLUID BY AN ANNULAR STEP DOWN OUTBOARD OF THE AGITATOR. THE PROTECTION
OF THE STEP DOWN CREATES EDDY CURRENTS OVER THE HOLES DURING EACH PULSE OF WASHING FLUID TO TRAP SEDIMENT. BETWEEN EACH PULSE SEDIMENT THUS TRAPPED DROPS THROUGH THE HOLES FOR REMOVAL FROM HE CLOTHES WASHER DURING ROTATION OF SAID PERFORATE TUB.
Abstract:
A plastic tub assembly for a clothes washer includes a rotatable plastic inner tub nested inside a nonrotatable plastic outer tub. The inner tub has an integral central agitator and outer scrubbing ribs and is adapted for a driving connection with an oscillation or spinning mechanism. Strengthening the inner tub is provided by a reinforced bottom wall and a metal circumscribing ring, the ring also preventing spin welding of the plastic tubs. The outer tub has an overflow channel at the top and an integral pump housing and antidrip flange at the bottom.