Press for forming containers with profiled bottoms

Details Press for forming containers with profiled bottoms Press for forming containers with profiled bottoms

2007-07-10

2007-07-10

Banks, Derris H. (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S347000, C072S379400

Reexamination Certificate

active

11067169

ABSTRACT:
A press for forming a container with a bottom profile is provided. The press may have a profile pad that is secured within a base of the press or is secured to a die core riser that is axially movable up and down. The press may have one or more biasing members that accommodate expansion in certain tooling components during operation of the press. The press may have a tool pack of tool components located within a part of the fixed base wherein the tool pack is removable from a top surface of the base. The press may have a punch and a profile pad with an annular projection or an annular shoulder wherein the projection and the shoulder clamp material between the projection and the shoulder and allow the material to roll up a preselected height into the container to form the bottom profile of the container.

REFERENCES:
patent: 4620434 (1986-11-01), Pulciano et al.
patent: 4696177 (1987-09-01), Bulso, Jr. et al.
patent: 4732031 (1988-03-01), Bulso, Jr. et al.
patent: 4826382 (1989-05-01), Bulso, Jr. et al.
patent: 5024077 (1991-06-01), Bulso, Jr. et al.
patent: 5881593 (1999-03-01), Bulso, Jr. et al.

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