Fire fighting nozzle and method including pressure regulation, chemical and eduction features
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United States of America Patent
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Aug 23, 2011
Grant Date -
May 18, 2006
app pub date -
Dec 2, 2005
filing date -
Apr 6, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fire fighting nozzle for extinguishing industrial scale fires including improved automatic pressure regulating features, enhanced educting features including central and peripheral channeling for foam concentrate, and combining with a capacity to throw dry chemical. Improved pressure regulating features include a double acting baffle and preferably a relief valve. Method and apparatus for automatically metering an additive such as foam concentrate into a conduit having a variably flowing fire fighting fluid therethrough, the conduit including a discharge device, proximate or downstream.
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Cited Art Landscape
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