APPARATUS AND METHODS OF CAPPING METALLIC BOTTLES
An apparatus and methods of sealing a metallic container are provided. More specifically, the present invention relates to capping apparatus and methods that reduce the amount of force applied to a metallic bottle to seal the metallic bottle with a ROPP closure. The capping apparatus may include more thread rollers than known capping apparatus. Optionally, the thread rollers may use more forming passes to form threads on the ROPP closure. The capping apparatus may also rotate one or more of the ROPP closure and the metallic container in a closing direction before the metallic container is discharged. In one embodiment, the thread rollers form the closure tlireads before or after a pilfer roller applies a sideload to the ROPP closure. In another embodiment, the capping apparatus forms a channel in the ROPP closure with a depth that is less than the depth of channels formed by prior art capping apparatus.