PAPERBOARD BOTTOM BLANK SHAPING APPARATUS AND METHOD FOR SHAPING A PAPERBOARD BOTTOM BLANK
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United States of America Patent
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Issued Date -
Apr 13, 2023
app pub date -
Mar 10, 2021
filing date -
Mar 13, 2020
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Abstract
A cylindrical punch head (2) includes a punch face (3) and a side surface (4). The punch face extends in a radial direction about an axis of the punch head. The side surface extends in an axial direction of the punch head about a periphery of the punch face. The side surface defines a plurality of grooves (6). Each groove extends in the axial direction of the punch head. A method for shaping a paperboard bottom blank to shape a peripheral skirt portion about a periphery of the paperboard bottom blank using the cylindrical punch head.
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