ULTRATHIN POLYCARBONATE PANELS FOR SECURITY ISOLATION CELLS
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United States of America Patent
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Issued Date -
Jun 27, 2019
app pub date -
Aug 19, 2016
filing date -
Aug 19, 2016
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Abstract
The present invention provides ultrathin polycarbonate panels for use in security isolation cells to provide a transparent and secure barrier between a prisoner and a guard, where the barrier passes flammability test ASTM E-84 Class A. The panel comprises at least one polycarbonate sheet having a thickness between 0.25 mm and 1 mm. Panels may optionally include a metal support and a frame, and the frame may overbite (edge bite) a portion of the polycarbonate panel, and all points of the polycarbonate panel may be located within four frame widths of the frame.
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