专利名称：Institutional sprinkler head nipple 发明人：Lloyd Perkins
gli
申请号：US08/692763
申请日：19960806
公开号：US05794853A
campaign
公开日：
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19980818
hv专利内容由知识产权出版社提供匹配英语
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摘要：An institutional sprinkler head nipple adapted to place an asmbly of the institutional sprinkler head and a nipple in an institutional wall by placing the nipple and the sprinkler head under tension between one side of the wall and the other side of the wall. The improved fire sprinkler nipple comprising a cylindrical hollow pipe of a first internal diameter and a first outer diameter and having first and cond ends, the wall of the pipe being swaged down towards the first end to the cylindrical ction of a cond inner diameter less than the first inner diameter of the pipe, the first end being internally threaded and adapted to receive an externally threaded inlet of an institutional fire sprinkler head, the cond end adapted to be joined with a fire sprinkler pipe fixture, a cylindrical externally threaded sleeve is received on and cured on the pipe proximate its first end, the sleeve adapted to receive a retaining washer and threaded nut.
申请人：PERKINS; LLOYD
代理人：William G. Lane
caymans
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