Can bottom forming assembly

Details Can bottom forming assembly Can bottom forming assembly

2007-11-06

2007-11-06

Banks, Derris H. (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S453130

Reexamination Certificate

active

11346132

ABSTRACT:
A can bottom forming assembly for use in forming the bottom of metal cans, such as steel and aluminum two piece cans. The bottom forming assembly is lightweight and comprises outer and cylinder housing assemblies which house a clamp ring retainer assembly, a transfer piston assembly and a spring member. The clamp ring retainer assembly includes biasing members to float a clamp ring thereby centering the clamp ring and domer die plug with respect to the ram of a bodymaker.

REFERENCES:
patent: 2038466 (1936-04-01), Yates
patent: 4324124 (1982-04-01), Maeder
patent: 4930330 (1990-06-01), Weishalla
patent: 5797292 (1998-08-01), Johansson et al.
patent: 6070447 (2000-06-01), Bone et al.
patent: 6351981 (2002-03-01), Jowitt et al.
patent: 6490904 (2002-12-01), Zauhar

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