Preform for producing plastic containers in a stretch-blow-moulding process
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United States of America Patent
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Mar 7, 2017
Grant Date -
Jul 9, 2015
app pub date -
Mar 10, 2015
filing date -
Sep 10, 2012
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Abstract
A preform is disclosed for the production of plastic containers, for example plastic bottles, in a stretch-blow-molding method. The preform can include an elongated preform body having a closed longitudinal end and which connects on an opposite longitudinal end to a neck section having a pour opening, the neck section having an outside wall with a fastening means. A rotating flange at a transition from the preform body to the neck section, wherein at least a portion of the rotating flange is annular and radially extends above an outside wall of the preform body. A peripheral annular groove can extend obliquely from a base of the annular groove to the outside wall of the neck section forming a circumferential inner collar, and wherein the inner collar the direction of the preform body, extends axially above the annular groove and extends into an inside wall of the preform body.
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