Flush-sided double seamed composite container

Details Flush-sided double seamed composite container Flush-sided double seamed composite container

B - Operations, Transporting

21

D

113/10

B21D 51/00 (2006.01) B21D 51/26 (2006.01) B21D 51/32 (2006.01)

Patent

CA 1136494

ABSTRACT OF THE DISCLOSURE A system of seaming a metallic end cover to a tubular composite can body utilizing a cover the diametric size of which is smaller than that of the can body. The smaller cover provides an annular space between the central depending cover pin and the surrounding portion of the body wall at the end thereof. The peripheral flange of the cover is inwardly folded about and with the flanged end of the can body to define a double seam. Simultaneously with the formation of the double seam, the seaming rolls, through direct engagement with the can body at and immediately below the seam, inwardly shape and contour the end portion of the can body, bringing the formed seam into the annular space and into direct engagement with the cover pin, necking the can body and providing a flush- sided container.

349618

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