Container forming method and product

摘要

A method and apparatus for connecting a metal lid to a metal body of a container to seal any product held by the container. The container is formed from a generally cylindrical metal body having an upper edge and a metal lid having a peripheral edge. The metal lid is held imposition on the metal body so that the upper edge portion of the metal body and the peripheral edge of the metal lid form a contiguous junction. A beam of laser energy is directed toward the contiguous junction for sufficent time to hermetically deal the lide to the body. A single roll-formed lip provides a smooth finish to the combined body and lid. The lid includes a circumferentially continuous recess surrounding a central planar portion of the lid. The recess is located adjacent the peripheral edge while the peripheral edge is situated at or below the plane defined by the central planar portion, therby reducing the material required to form a sealed container of any given volume.