发明名称 Hold-open device for use with conventional door closer
摘要 Door holder is adapted to work with conventional door closer. Holder comprises a shoe moving along a track and connected to the closer operating arm. A latch, when device is activated, holds shoe with door in open condition. Latch is attached to a frame near the track and which may be moved away from latching engagement with shoe either by forcible closing of the door manually or by de-activating closer.
申请公布号 US4286412(A) 申请公布日期 1981.09.01
申请号 US19790060825 申请日期 1979.07.25
申请人 SCOVILL INC. 发明人 STEVENS, WILLIAM E.
分类号 E05B47/00;E05C17/28;E05F3/22;(IPC1-7):E05F1/00;E05C17/04 主分类号 E05B47/00
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