发明名称 SECURITY LATCH FOR DOOR HINGED TO OPEN OUTWARDLY
摘要 A security latch apparatus for the interior of a school or industrial door hinged to open outwardly. The latch includes a lower mounting door bracket with a pivotable handle designed to fit firmly against the interior doorframe and prevent that door from being prematurely pulled open. A disengagement rod is provided for authorized personnel to manually undo a secured door from its exterior.
申请公布号 US2014300114(A1) 申请公布日期 2014.10.09
申请号 US201414167963 申请日期 2014.01.29
申请人 Atkinson, JR. Joseph A 发明人 Atkinson, JR. Joseph A
分类号 E05C19/00 主分类号 E05C19/00
代理机构 代理人
主权项 1. A security latch for a door hinged to open outwardly, said latch comprising: a frame bracket for mounting to an interior of the door adjacent a surrounding frame of the door; a pivot hinge connected to the frame bracket, said pivot hinge extending outwardly away from the door interior; and a latch arm that connects at one end to the pivot hinge and extends outwardly therefrom, said latch arm being adapted for rotating from a first point when the door is open, said first point being substantially over the door interior, to a second point when the door is closed and sitting within its surrounding frame, said second place requiring at least some physical overlap of an outermost end of the latch arm with the surrounding frame of the door.
地址 Jefferson Hills PA US