Abstract: An explosion suppressant dispersion nozzle 10 for dispersing suppressant material from a pressurized suppressant storage vessel 12 to a protected zone or room is disclosed. The nozzle 10 includes a cylindrical body section 20 presenting an inlet end 26 for attachment to the storage vessel 12 and a discharge end 28, and a concavo-convex cap section 24 attached to the discharge end 28. The body section 20 includes a plurality of circumferentially spaced windows 32 each presenting generally rectangular openings for dispersing suppressant material laterally from the nozzle 10. The cap section 24 includes a central orifice 48 aligned with the longitudinal axis of the nozzle 10 for dispersing suppressant material axially from the nozzle 10 and a plurality of circumferentially spaced holes 50 spaced radially from the central orifice 48 for dispersing suppressant material radially from the nozzle 10.

Abstract: A backflash interrupter device is provided which can be placed in-line in a run of pipe, duct, or the like for preventing a pressure wave and any subsequent flame front traveling along the run from passing beyond the device. The preferred backflash interrupter device includes a chamber base and a vent cap cooperatively defining a transfer chamber with at least two fluid-conducting members coupled therewith with the distal ends thereof configured for coupling with respective terminal ends of portions of the run of pipe, duct, or the like.