Method and apparatus for necking containers
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United States of America Patent
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-
Oct 4, 1988
Issued Date -
N/A
app pub date -
Feb 6, 1987
filing date -
Dec 27, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A die necking method and apparatus for producing a smooth tapered wall between the container side wall and a reduced diameter neck includes a plurality of rotatable necking turrets that each have a plurality of identical necking substations each having a necking die. The necking dies in the respective turrets have an internal configuration to produce a necked-in portion on the container which has a first arcuate segment integral with the container side wall and a second arcuate segment integral with the reduced diameter neck. The necking substations also have a floating form control element that engages the inner surface of the container to control the portion of the container to be necked. The necked-in portion is reformed in each succeeding turret by dies to produce a smooth tapered wall between the arcuate segments.
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