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1. 发明授权

US4638866A Fire-sprinkler cut-off device 失效
标题翻译：消防水灭火装置
公开(公告)号：US4638866A
公开(公告)日：1987-01-27
申请号：US824729
申请日：1986-01-31
申请人： Vincent Capasso , Charles W. Kalck, Sr.
发明人： Vincent Capasso , Charles W. Kalck, Sr.
IPC分类号： A62C37/20 , A62C39/00
CPC分类号： A62C37/20
摘要： An apparatus for stopping the flow of water through the opening in a fire sprinkler head after the failure of an originally installed triggering device, which apparatus thereafter serves as a substitute triggering device. The apparatus is provided with a meltable body portion having a first bore formed therein with a shoulder formed at one end of the first bore and a second bore formed generally transverse to and in contact with the first bore at the shoulder end of the first bore, a spring positioned in the first bore, a piston positioned within the spring and having a slot at one end which is alignable with the second bore and a pin inserted through the second bore and engaging the piston slot. Thus, after placement in a sprinkler head, transverse movement of the pin results in the release of the piston which is moved by the spring into the sprinkler head opening, stopping the flow of water.
摘要翻译：一种用于在初始安装的触发装置发生故障之后停止水流过消防喷头的开口的装置，该装置此后用作替代触发装置。该装置设置有可熔体主体部分，其具有形成在其中的第一孔，该第一孔形成在第一孔的一端处，并且在第一孔的肩端处大致横向于第一孔并与其接触形成的第二孔，位于所述第一孔中的弹簧，位于所述弹簧内的活塞，其一端具有与所述第二孔对准的狭槽，以及插入穿过所述第二孔并与所述活塞槽接合的销。因此，在放置在喷洒头中之后，销的横向移动导致活塞的释放，活塞被弹簧移动到喷头开口中，从而阻止水的流动。

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