Methods of making containers

Details Methods of making containers Methods of making containers

1988-09-15

1991-09-17

Schmidt, Frederick R.

Sheet metal container making

Method

Forming or treating metallic closure

413 6, 413 31, B21D 5126, B21D 5146

Patent

active

050490192

ABSTRACT:
A method of making a container by laminating a metal substrate layer and a polymeric material layer together by bonding over the whole of at least one side of the metal substrate layer thereby forming a laminate container component, providing another container component, forming one of the container components into a tubular container body component having an opening set off by a peripheral edge portion, forming the other of the container components into a container closure component having a peripheral edge portion, assembling the container body component and the container closure component with the polymeric material layer in sandwiched relationship between the peripheral edge portions and in the complete absence of adding any additional sealing material between the peripheral edge portions other than the polymeric material layer of the first step and mechanically deforming the peripheral edge portions into a mechanical joint with sufficient force to compress the polymeric material layer and form an an air/gas-tight seal between the peripheral edge portions of the mechanical joint in the absence of any bonding of the polymeric material layer with the mechanically deformed mechanical joint.

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