Sheet steel easy open can lid superior in can openability and not requiring repair coating of inner and outer surfaces
AssigneeNippon Steel Corporation
InventorsYashichi Oyagi, Kiyonori Nakamura, Keiji Taniuchi
Life of this patent
Estimating the term…
Abstract
A sheet steel easy open can lid made by a resin-laminated sheet steel and not requiring repair coating of the inner and outer surfaces thereof, wherein use is made of a sheet steel laminated with a resin such as polyester and a tear-along groove, having as its main constituent element at the peripheral edge of the opening piece a thin portion having the specified minimum thickness is formed by composite cold-forming. The part or substantially all of this can lid can be easily opened by hand.
Claims8
A sheet steel easy open can lid containing an opening piece not requiring repair coating of the inner and outer surfaces, wherein a resin-laminated sheet steel, having resin laminated on inner and outer surfaces, is used as a substrate a tear-along groove at the peripheral edge of the opening piece is formed, without cutting the laminated resin sheet on the inner and outer surfaces, by composite cold-forming.
Dependencies are inferred from the claim text.