Patent ID: 7690063
Filing Date: 2010-04-06
Classification: D06F

Abstract:
1. A method of washing items during a wash cycle in an automatic washer having a wash chamber rotatable about a central axis, the method comprising the steps of: loading items into the wash chamber; supplying wash liquid into the wash chamber; oscillating the wash chamber about the central axis alternately through a clockwise angle of rotation and a counter-clockwise angle of rotation with speed varying oscillations; randomly varying the speed of the oscillations above and below a base speed periodically during subsequent oscillations in the wash cycle; maintaining the speed varying oscillations to effect less than a one gravity centrifugal force on the items such that the items will tumble in said wash chamber; and randomly varying the angle of rotation traversed by the wash chamber during each clockwise and counter-clockwise rotation above and below a base angle of rotation periodically during subsequent oscillations in the wash cycle.