作者: Ben Tolman , William L. Ziegert , Paul R. Walters , Curtis Paul Gonzales
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摘要: Barrier systems and associated methods, including vapor and/or fire barrier systems, are disclosed herein. One aspect of the invention is directed toward a system that includes coupled to spool, drive system. The positioned be wound onto off spool as moves between deployed position retracted by assembly. further clutch configured resist movement unless system, release allow manual egress when power fails. latch retain in prevent from deploying fails releases.