Container seam and a process for forming a container seam

Details Container seam and a process for forming a container seam Container seam and a process for forming a container seam

1984-07-05

1986-12-02

Gilden, Leon

Sheet metal container making

Method

Assembling receptacle with closure

413 4, B21D 5130

Patent

active

046261583

ABSTRACT:
A triple seam for assemblying a bottom to a container body, and a process for forming the triple seam. The process comprises the step of forming an axially extending seaming structure comprising a plurality of layers belonging to adjoining edges of the body and bottom. One of the adjoining edges includes a first layer and a contiguous overfolded second layer having an axial length less than the axial length of said first layer to increase the number of layers in a first axial section of the seaming structure. The process also includes the step of lamination rolling the seaming structure to a uniform width. A hook-shaped profile is formed in said body edge as a preliminary step in this process.

REFERENCES:
patent: 1507304 (1924-09-01), Blair
patent: 1736422 (1929-11-01), Wellings
patent: 1766173 (1930-06-01), Mills
patent: 2169395 (1939-08-01), Rheen
patent: 2239696 (1941-04-01), Bohm
patent: 3263636 (1966-08-01), Smith
patent: 3672317 (1972-06-01), Walker
patent: 3765351 (1973-10-01), Kubacki
patent: 3882763 (1975-05-01), Ellerbrock
patent: 4538758 (1985-09-01), Griffith

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