发明名称 Emergency escape openable skylight
摘要 An emergency escape openable skylight is provided with a resiliently biased openable cover with at least a substantial portion of the openable cover being constructed of a transparent material. The skylight is provided with a retractable ladder. The retractable ladder may be a pully operated flexible ladder, a rigid foldable ladder, or any other suitable retractable ladder. The cover is normally held closed by a latch means, but is self-opening or substantially self-opening upon release of the latch by reason of the resilient biasing means.
申请公布号 US4180142(A) 申请公布日期 1979.12.25
申请号 US19780909733 申请日期 1978.05.25
申请人 BRUNO, ROCCO JR;SEVILLANO, RICHARD 发明人 BRUNO, ROCCO JR;SEVILLANO, RICHARD
分类号 A62B1/02;E04F11/06;(IPC1-7):E04F11/04;E06B5/00 主分类号 A62B1/02
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