Sonoco Development Incorporated

Dave Dunn

Jeremy E Morin

Trevor Price

John Meeks

A container assembly includes a container body having a side wall encircling an axis, and a metal end for attachment to an upper edge of the side wall via heat-sealing. The outer peripheral region is shaped prior to application to the container body such that an annular channel is defined between an inner chuck wall and an outer chuck wall of the metal end. The metal end is pushed straight onto the side wall such that the upper edge of the side wall is received into the channel. The surfaces of the side wall and the opposing surfaces of the chuck walls have heat-sealable material thereon. The metal end is heated to melt and fuse the heat-sealable layers, thereby sealing the metal end onto the side wall. The metal end is shaped such that the free edge of the outer chuck wall is not exposed.

Container assembly having a heat-sealed metal end, a metal end therefor, and a method for making same

A metal end is applied and sealed to a plastic or paper/plastic composite container body by a crimp-seaming or double-seaming operation. The metal end has an outer curl joined to a compound-angle chuck wall that extends down from the curl. The chuck wall has an upper part that is substantially linear and at an angle &#x3b1;1 with respect to an axis of the end, and a lower part that is substantially linear and at a larger angle &#x3b1;2 with respect to the axis. The compound-angle chuck wall allows a substantial diametral clearance between a lower end of the lower part of the chuck wall and the inner surface of the container body, while there is substantially zero clearance, or preferably an interference fit, between the upper part of the chuck wall and the inner surface of the container body. Accordingly, the chuck wall guides the end into concentric alignment with the container body during application.

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Carrollton, OH, United States of America

Dave Dunn