Method for manufacturing a closing structure, openable in a cont

Details Method for manufacturing a closing structure, openable in a cont Method for manufacturing a closing structure, openable in a cont

1990-06-22

1992-10-20

Kisliuk, Bruce M.

Sheet metal container making

Method

Forming or treating metallic closure

413 12, 413 14, B21D 5140

Patent

active

051565110

ABSTRACT:
Method for manufacturing a closing structure (3), openable in a controlled manner of a can, in particular a metallic can (1), the method comprising press forming the sheet blank so as to form a bulging zone, forming from the bulging zone a small curved zone, and producing in the region of the curved zone a cut-away part so as to form an aperture (5) including a peripheral skirt (10c), enlarging a part of the peripheral skirt (10c) and fixing by seaming to the aperture (5) a removable closure member (4) by forming a seamed edge portion (10e) constituted by the peripheral skirt (10c).

REFERENCES:
patent: 1847108 (1932-03-01), Hirsch
patent: 1848012 (1932-03-01), Hirsch
patent: 1863337 (1932-06-01), Hirsch
patent: 1866469 (1932-07-01), Hirsch
patent: 2274819 (1942-03-01), Becker
patent: 2884699 (1942-10-01), Hothersall
patent: 3070058 (1962-12-01), Boyer
patent: 3142412 (1964-07-01), Blakeslee
patent: 3343713 (1967-09-01), Fraze
patent: 3575122 (1971-04-01), Brossart, Jr.

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