Fire fighting nozzle for projecting fog cloud

A fire fighting tool comprising, in combination:

• a tubular shaft having first and second end portions and a sidewall enclosing a flow passage, a discharge port formed in one end of said tubular shaft, and an inlet port formed in the sidewall between said first and second shaft end portions for admitting pressurized water;
• hose connection means for connecting the inlet port of the shaft member to a water supply hose so that pressurized water can be supplied to the nozzle;
• a water discharge nozzle assembly mounted on the shaft in communication with the discharge port of the shaft, the water discharge nozzle assembly including a bearing member having a closed end portion and an open end portion, and a rotary member mounted on the bearing member for discharging water outwardly from the shaft;
• and
• a bumper cap attached to the closed end portion of the bearing member.

A portable tank unit capable of stand-alone operation for supplying high pressure water to a tripod-mounted or hand-held nozzle operation, or can be slung below a helicopter for remote aerial stand-off operation, or truck-mounted for transport and set-up to supply a hand-held fire fighting nozzle or a tripod-mounted nozzle for fire fighting operations, the tank unit comprising, in combination:

• a tank assembly having a tank reservoir for holding a supply of fire fighting water, the tank assembly including a pair of skids supporting the tank in an upright service position;
• a submersible pump having an inlet port and a discharge port disposed in the tank reservoir;
• a submersible drive motor disposed in the tank reservoir, the submersible drive motor being coupled in driving relation to the pump;
• an intake conduit disposed in the tank reservoir and coupled to the inlet port of the pump;
• a distribution manifold disposed in the tank reservoir and coupled to the discharge port of the pump;
• interconnect piping disposed in the tank reservoir, the interconnect piping including first and second discharge conduits coupled in fluid communication with the manifold, the discharge conduits each having an end portion projecting out of the tank reservoir for delivering a supply of high pressure water;
• a first fluid discharge nozzle mounted on the projecting end portion of the first discharge conduit and coupled in flow communication the distribution manifold for receiving high pressure water flow;
• and
• a second fluid discharge nozzle mounted on the projecting end portion of the second discharge conduit and coupled in flow communication the distribution manifold for receiving high pressure water flow.