Methods of making containers

Details Methods of making containers Methods of making containers

1983-11-14

1986-12-02

Gilden, Leon

Sheet metal container making

Method

413 4, 413 6, 413 69, B21D 5126

Patent

active

046261575

ABSTRACT:
In a metal can at least one component having an edge portion forming part of a seam is made from pre-laminated plate comprising a metal substrate with a polymeric film bonded over the whole of one or both of its sides. An aerosol valve cup is made from such plate with its underside having such a polymeric layer, and is secured to the can body in a seam by conventional mechanical deformation, such as swaging, so as to compress the polymeric layer in the seam. This provides a satisfactory seal without the need for any additional sealing material within the seam.

REFERENCES:
patent: 2122537 (1938-02-01), Pfeffer
patent: 3263636 (1966-08-01), Smith
patent: 3295485 (1967-07-01), Gedde
patent: 3832963 (1974-09-01), Gayner
patent: 3868919 (1975-03-01), Schrecker
patent: 4037550 (1977-07-01), Zofko
patent: 4045860 (1977-09-01), Winckler
patent: 4363582 (1982-12-01), Bloeck

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