Inflation and sealing device with web control
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United States of America Patent
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Feb 14, 2023
Grant Date -
Jun 24, 2021
app pub date -
Dec 22, 2020
filing date -
Dec 23, 2019
priority date (Note) -
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Abstract
The present disclosure is directed to a web control guide for an inflation and sealing assembly of a protective packaging formation device for inflating a web material into a chain of inflated cushions. The web control guide is positioned along a material path at a transverse spacing from a first compression element and constrains a first thickness of the material path measured normal to the longitudinal and transverse directions of the material path. The transverse spacing and constrained thickness dimension are sufficiently small to prevent transverse movement of the flexible material towards the first compression element to avoid excessive heating of the web material outside a sealing zone.
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