Patent ID: 8864912

Claim:
A process for internally cleaning inverted cans, each of said cans having a respective opening, said process comprising engaging a cylindrical wall of a can using a gripper that conforms to said cylindrical wall, said gripper being selected from a group consisting of a vacuum gripper and an adhesive gripper, causing an axially moving spraying unit for emission of a cleaning medium to travel in and out of said opening for internal cleaning of said can, cleaning said can by treating said can in an inverted position along a circular conveyor with said cleaning medium, wherein said spraying unit applies a flushing force to a base of said can, and subjecting said can to a counterforce to counter said flushing force, wherein subjecting said can to a counterforce comprises applying a counterforce with a supporting arm or bottom stop, thereby preventing said can from being pressed out of a receptacle in which said can is seated during cleaning.