Method of forming a closure
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United States of America Patent
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Aug 24, 2021
Grant Date -
Jan 11, 2018
app pub date -
Sep 3, 2015
filing date -
Feb 5, 2015
priority date (Note) -
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Abstract
A method of forming a bi-injected closure, comprising the steps of: forming a cap with a top plate and a depending sidewall, in a first injection moulding phase using a first mould part, the cap formed so as to include one or more external sealing areas; changing the first mould part for a second mould part, the second mould part sealing against the or each sealing area on the cap; and forming an outer ring around the cap sidewall whilst the second mould part is sealed against the sealing area/s in a second moulding phase.
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