Method for making a metal can end

Details Method for making a metal can end Method for making a metal can end

1974-06-03

1976-05-18

Lanham, C. W.

72348, 113121C, B21D 5144, B21D 2221

Patent

active

039570053

ABSTRACT:
A metal can end and method for making the same wherein the can end includes a body portion of substantially uniform metal thickness and a peripheral flange of reduced metal thickness to minimize the weight and quantity of material required for the can end. The can end is formed from relatively thin sheet material, such as aluminum sheet or the like, by punching or shearing a blank or disc from the sheet and forming the disc into a cup which is subjected to an ironing operation to reduce the thickness of the peripheral portion thereof and increase its projecting length. The ironed cup is then subjected to mechanical pressing, or magnetic discharge forming, to shape the peripheral portion into a curvilinear flange which is adapted to be double seamed to the can body.

REFERENCES:
patent: 343390 (1886-06-01), Paull et al.
patent: 3191422 (1965-06-01), Bolt
patent: 3428010 (1969-02-01), Frankenberg
patent: 3526076 (1970-09-01), Siewerth et al.
patent: 3537291 (1970-11-01), Hawkins
patent: 3581456 (1971-06-01), Gere
patent: 3733881 (1973-05-01), Grigorenko
patent: 3768295 (1973-10-01), Cudzik

Affiliated with

Also associated with

Rating

Method for making a metal can end 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 for making a metal can end, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making a metal can end will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2228532