US Patent 7993471 Wash chamber for automated appendage-washing apparatus

A wash cylinder or chamber for an automated cleaning station to clean an object or a person's body part includes nozzles on the interior of the cylinder, the nozzles of one embodiment comprising an increasing roll angle providing a novel spray pattern. Additionally, embodiments of the invention include fluid guidance and conveyance structures, angled nozzles, sealing structures, finger guards, wash chamber seating mechanisms and drains, and nozzle ribs that prevent the nozzle from being dislodged during the operation of the cleaning station Also disclosed are methods of washing an object or body part using a wash cylinder or chamber and methods of assembling a wash cylinder or chamber.