Nozzle assembly with blow-off cap for use in fire...

A - Human Necessities – 62 – C

Patent

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Details

A62C 31/28 (2006.01)

Patent

CA 2608653

A discharge assembly used with a fire suppression delivery system comprises a nozzle having an outer nozzle surface and inlet and discharge ends. The inlet end receives fire suppression agent and the discharge end dispenses fire suppression agent through an orifice. A blow-off cap has an open-ended cavity shaped to receive the discharge end of the nozzle and cover the orifice. The cavity includes an interior cap surface located in close proximity to the outer nozzle surface of the nozzle when the blow-off cap is mounted on the discharge end of the nozzle. A receptacle is formed in at least one of the outer nozzle surface of the nozzle and the interior cap surface of the blow- off cap. A retention element fits within the receptacle and engages the outer nozzle surface and interior cap surface, providing a predetermined amount of retention resistance to retain the blow-off cap on the nozzle.

Selon l~invention, un ensemble de refoulement associé à un système anti-incendie comprend une buse dotée d~une surface de buse extérieure et d~extrémités d~admission et de refoulement. L~extrémité d~admission reçoit un agent anti-incendie et l~extrémité de refoulement assure la distribution de l~agent anti-incendie par un orifice. Un embout de purge contient une cavité ouverte aux deux extrémités dont la forme est conçue pour recevoir l~extrémité de refoulement de la buse et pour boucher l~orifice. La cavité comporte une surface intérieure d~embout située à proximité immédiate de la surface extérieure de la buse lorsque l~embout de purge est monté sur l~extrémité de refoulement de la buse. Un réceptacle est formé dans la surface extérieure de la buse et/ou la surface intérieure de l~embout de purge. Un élément de retenue s~ajuste dans le réceptacle et vient en prise avec la surface extérieure de la buse et la surface intérieure de l~embout pour offrir une quantité prédéterminée de résistance de retenue de façon à retenir l~embout de purge sur la buse.

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