Controlled growth can with two configurations

Receptacles – End wall structure – One-piece side and end wall

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Details

220606, B65D 2100

Patent

active

057303142

ABSTRACT:
A drawn and ironed can having a generally cylindrical side wall and an integral bottom including two annular rims is provided. The bottom of the can has a reduced volume configuration, wherein the upright can rests on an outer annular rim known as the heel, and an expanded volume configuration, wherein the upright can rests on an inner annular rim known as the nose. When a can in the reduced volume configuration is subject to an elevated internal pressure substantially less than the maximum working pressure, a portion of the can bottom comprising the nose moves axially downwardly relative to the rest of the can to serve as a new base, thus transitioning the can into the expanded volume configuration.

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