发明名称 Replaceable deflectors for the sprinkler heads of automatic fire extinguishing systems
摘要 This invention is directed at a sprinkler head for automatic fire extinguishing systems having deflectors that are replaceable. The deflectors may be replaced, while the head is installed in an active system, without shutting the system down.
申请公布号 US4553603(A) 申请公布日期 1985.11.19
申请号 US19840685956 申请日期 1984.12.24
申请人 DWYER, JOHN J. 发明人 DWYER, JOHN J.
分类号 A62C37/10;(IPC1-7):A62C37/08 主分类号 A62C37/10
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