HOLLOW CORE COMPOSITE
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United States of America Patent
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Issued Date -
Jun 23, 2016
app pub date -
Dec 23, 2014
filing date -
Dec 23, 2014
priority date (Note) -
Published
status (Latency Note)
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Abstract
Embodiments of the invention include a composite panel consisting of a thermoplastic core sandwiched between two skins of textured material, such as steel sheeting with barbs raised from one face. The core is made from hollow core elements, such as balls or tubes. The barbs penetrate the core elements on either side to lock the panel together. This is facilitated by heating the skins so that the barbs are hot enough to cause the core material to melt so that after it cools it solidifies around the barbs causing the skins and core to be locked together. The core may be a two-dimensional array of spherical elements or a series of tubes placed side by side for example.
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