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 1. Field of the Invention
 The present invention relates generally to an apparatus for washing clothing and other items. More particularly, though not exclusively, the present invention relates to an apparatus for washing clothing that includes a drain-back groove to minimize excess sudsing during the removal of wash water.
 2. Problems in the Art
 Currently, top loading washing machines typically include a perforated basket which holds the clothes or articles being washed and an agitator to mix the clothes and articles in the wash water. At the completion of the wash cycle, the perforated basket is rotated at a high RPM to extract the wash water from the perforated basket and the clothes and articles therein. Because of the spinning nature of the perforated basket, the extraction is known as the spin cycle.
 During the spin cycle water flows out of the holes in the perforated basket and contacts an outer tub. Due to the speed of the perforated basket during the spin cycle, the evacuated water continues to flow in the direction of the spin even after contacting the wall of the outer tub. This delays the water's arrival at the base of the tub where it is eventually pumped away.
 Often, the evacuated wash water lingers in the upper portions of the tub, eventually accumulating and re-contacting the spinning perforated basket. When this occurs, the result is foam. Eventually, the amount of foam is amplified to the point of suds-locking the washing machine, a condition where the drain pump is no longer able to evacute the suds. During a suds-locking condition, suds may develop to the point where they exert an excessive load on the motor used to drive the spinning basket. To prevent this problem, it is desirable direct the evacuated wash water towards the base of the tub as quickly as possible. This would minimize water build up and any resultant foaming conditions.
 Prior attempts at directing water's movement in the region between the outer tub and the perforated basket have included U.S. Pat. No. 5,671,617 which issued to Park et al. on Sep. 30, 1997. However, the Park patent uses a series of collars on one of the two interior perforated baskets to recycle water onto the top of the clothes during the wash cycle. Wash water is extracted in a conventional manner and no effort is made to direct the flow of evacuated water during the spin cycle.
 A general objective of the present invention is to provide a washing machine that solves the problems found with the prior art.
 A further objective of the present invention is to provide a washing machine that can affect the flow of water between the perforated basket and the outer tub.
 Another objective of the present invention is to provide a washing machine that efficiently collects wash water during the spin cycle.
 A still further objective of the present invention is to provide a washing machine that minimizes excessive sudsing in the region between the perforated basket and the outer tub.
 The foregoing objects may be achieved by the washing machine of the present invention. The present invention generally comprises a cabinet in which a perforated wash basket is mounted in a conventional manner. An agitator, drive motor and drive mechanism are mounted within the cabinet, as is well known, to operate the washing machine.
 Between the perforated wash basket or interior chamber and the cabinet is a tub or outer chamber to collect and contain wash water. The tub has a side wall that includes one or more grooves to direct wash water downward toward a collection area during the spin cycle. Preferably, the groove includes an under-cut portion that prevents collected water from flowing out of the groove.
 During the spin cycle, the motor operates to turn the perforated basket at a high speed. This causes wash water to be extracted from the clothes or articles in the perforated basket. The water flows through the perforations in the basket and out to the tub wall. Because the basket and clothes are spinning at a high rate, the water flows out of the perforated basket and continues to flow in the direction of the spinning basket. When the water contacts the grooves, the flow is redirected to evacuate the water in a more efficient manner thereby minimizing sudsing conditions.
 The present invention will be described as it applies to its preferred embodiment. It is not intended that the present invention be limited to the described embodiment. It is intended that the invention cover all modifications and alternatives which may be included within the spirit and scope of the invention.
 Now, referring to the drawings,
 The motor
 The basket
 The washing assembly also includes one or more agitators
 After the washing cycle has completed, the motor
 The groove
 Using a mold, the groove
 As is shown in
 By redirecting the flow of water, the under-cut portion
 While the invention is shown in a washer with a spherical tub and a vertical spin axis, it is envisioned that it could be applied to a conventional vertical axis washer with a cylindrical tub, a conventional drum-style horizontal axis washer, or a washer with any spin-axis angle therebetween.
 A general description of the present invention as well as a preferred embodiment of the present invention has been set forth above. Those skilled in the art to which the present invention pertains will recognize and be able to practice additional variations in the methods and systems described which fall within the teachings of this invention. Accordingly, all such modifications and additions are deemed to be within the scope of the invention which is to be limited only by the claims appended hereto.