Sheet metal container making – Method
Patent
1998-01-21
1999-12-07
Coan, James F.
Sheet metal container making
Method
413 69, 413 77, B21D 5126, B23K 2600
Patent
active
059972327
ABSTRACT:
A method of making can bodies from sheet metal for manufacturing cans includes the steps of: feeding and superimposing two sheet metal strips rolled to finished thickness, joining the superimposed sheet metal strips by a plurality of connecting welded seams running continuously in the longitudinal direction of the strip, with a spacing from one another in the transverse direction of the strip corresponding to half the can body diameter, through continuous passage of the superimposed sheet metal strips through a welding device with a plurality of welding heads disposed with corresponding spacings from one another, cutting the sheet metal strips welded together along the middle of each connecting welded seam to create a plurality of flat tubes lying beside one another, optionally rolling up the flat tubes for intermediate storage and/or transport, unrolling the optionally rolled-up flat tubes, cutting the flat tubes transversely into flat tube sections whose length corresponds to approximately the can height, and spreading the individual flat tube section into a can body.
REFERENCES:
patent: 3204847 (1965-09-01), Vitense
patent: 3337944 (1967-08-01), Morris
patent: 4712960 (1987-12-01), Opprecht et al.
patent: 4805795 (1989-02-01), Sato et al.
patent: 5655867 (1997-08-01), Gysi et al.
Coan James F.
Rassellstein Hoesch GmbH
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