Double action container domer

Details Double action container domer Double action container domer

1996-01-25

1997-11-04

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

723794, B21D 2200, B21D 2221, B21C 3702

Patent

active

056827865

ABSTRACT:
A forming apparatus for doming containers employs a pair of pistons, a pressure ring and doming die. One piston carries the pressure ring, and the other piston carries the doming die. The pistons are mechanically linked so that they move in a counteracting manner thus reducing the stroke distance necessary to dome the container. This further reduces the impact energy on the container. The mechanical linkage is preferably pairs of rack and pinion gears moving the pistons in opposite directions of travel.

REFERENCES:
patent: 2075847 (1937-04-01), Hothersall
patent: 2914955 (1959-12-01), Colborne et al.
patent: 3010328 (1961-11-01), Forey
patent: 4289014 (1981-09-01), Maeder et al.
patent: 4589270 (1986-05-01), Lee, Jr.
patent: 4620434 (1986-11-01), Pulciano et al.
patent: 4930330 (1990-06-01), Weishalla

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