Aluminium
cans
Approximately 1 billion are produced
in the USA each year. The first can was designed in 1958 by Kaiser Aluminium.
This metal proved ideal as it was a lightweight, flexible material that allowed
manufacturing of the bottom & sides of the can from a single sheet, leaving
the top to be added after the can was filled.
The first cans were opened with a
separate opener but this was inconvenient so Ermal Fraze designed a small lever
attached to the can which was removed as the can was opened.
The design was workable but after a
while it created an ethical dilemma:
So in 1976 Daniel F. Cudzik invented
a simple, stay-attached opener of the sort familiar today.
As improvements were made in the
design & production of aluminium cans, various ethical problems arose concerning:
a.
Human safety:
b.
Environmental pollution:
c.
Convenience:
d.
Money:
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