US Patent 7389826 Firefighting agent delivery system

A vehicular firefighting system includes a vehicle, a boom pivotally coupled to the vehicle about a horizontal axis and a nozzle pivotally coupled to the boom. In one embodiment, the system includes a linkage having a first end coupled to the nozzle and a second end coupled to the vehicle such that the linkage maintains an orientation of the nozzle as the boom pivots about the horizontal axis. In another embodiment, the boom forms at least one fluid conduit in fluid communication with the nozzle so as to deliver firefighting agent to the nozzle.