Ceiling grid with seal
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United States of America Patent
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Mar 9, 2004
Grant Date -
N/A
app pub date -
Jan 16, 2003
filing date -
Jan 16, 2003
priority date (Note) -
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Abstract
A beam for a suspended ceiling in a clean room has soft plastic flaps on top of the flanges. The flaps form a seal when a ceiling panel is supported on the beam. The flaps, formed continuously as the beam emerges from a roll forming operation, are integral with a plastic coating on the metal beam core.
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