Necked-in aerosol containers

Details Necked-in aerosol containers Necked-in aerosol containers

1978-08-18

1979-11-13

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

72348, 72356, 72370, 113 1G, 113120S, 113120M, B21D 2200

Patent

active

041738837

ABSTRACT:
An apparatus and method for forming integral domed can bodies for aerosol cans. The apparatus is in the form of plural sets of tools, each set of tools including an inside tool and an outside tool so related as progressively to reduce the diameter of an end portion of the tubular body and in doing so gradually increasing the axial extent of an intermediate frustoconical portion. Each frustoconical intermediate portion is increased in extent axially by seating the previously formed portion on the inside tool and then shaping the blank on that same surface, whereby there is no interruption or stepping of the formed frustoconical intermediate portion of the blank.

REFERENCES:
patent: 604376 (1898-05-01), Egge
patent: 726800 (1903-04-01), Longbein
patent: 2384810 (1945-09-01), Calleson
patent: 3964412 (1976-06-01), Kitsuda
patent: 3972299 (1976-08-01), Hasselbeck
patent: 3995572 (1976-12-01), Saunders

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