US Patent 7945981 Automatic pool cleaner with flexible scrubbing panel

An automatic pool cleaner includes a housing having a bottom, an outer surface and an interior, at least two wheels connected to the housing and supporting the housing for rolling movement on a support surface with the bottom facing the support surface, a propulsion system in the interior configured to move the pool cleaner along the support surface, a suction inlet, and a scrubbing panel connected to the housing. The scrubbing panel includes at least one flexible panel and a resilient stiffener connected to the flexible panel that is configured to bias a planar portion of the flexible panel against the support surface when the wheels support the housing on the support surface.