Method and apparatus for making shaped cans

Details Method and apparatus for making shaped cans Method and apparatus for making shaped cans

1994-09-21

1996-07-09

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72111, 723794, B21D 5126

Patent

active

055333737

ABSTRACT:
A method and apparatus for shaping cans entails placing an inflatable flexible-walled mandrel inside a drawn can body, inflating the mandrel, rotating the can body and the inflated mandrel, applying a forming tool, such as a rubber-surfaced roller, to the exterior surface of the can body to deflect the sidewall inwardly, deflating the mandrel and withdrawing it from the shaped can body. The flexible walls of the mandrel may have corrugations longitudinally thereof for selective shaping of the can body. The mandrel may also include separate sections along its longitudinal axis having different expansion capabilities for each section. The mandrel may also include movable end plates at distal ends of the flexible walls and an incompressible fluid therebetween wherein the mandrel is inflated by compressing the plates.

REFERENCES:
patent: 2317869 (1943-04-01), Walton
patent: 2783727 (1957-03-01), Hoffmann
patent: 2878767 (1959-03-01), Paulton
patent: 3698337 (1972-10-01), Brawner et al.
patent: 3757555 (1973-09-01), Blutt et al.
patent: 3808868 (1974-05-01), Wolfe
patent: 3812696 (1974-05-01), Kneusel et al.
patent: 4389147 (1983-06-01), Van Alsburg
patent: 4510780 (1985-04-01), Cadwell
patent: 4953376 (1990-09-01), Merlone

Affiliated with

Also associated with

Rating

Method and apparatus for making shaped cans does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for making shaped cans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for making shaped cans will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1859740