Automatic fogging nozzle

In a nozzle system with a housing having means for projecting a substantially axial stream of fog and the like from a nozzle forwardly onto a fire in an enclosure and the like, coupling means for introducing liquid at a first end of the housing, and means including a handle for controlling passage of liquid through the housing, the improvement comprising:

• means for shielding against and breaking up hot gas currents blown back to the nozzle system as result of said projection of fog, including means for propelling a whirling cone of fog against said hot gas currents, said means for controlling selectively limiting operation to:
• a first mode in which the means for projecting and the means for propelling concurrently operate, a second mode in which only the means for projecting operates and a third mode in which both the means for projecting and the means for propelling are inoperative;
• the means for controlling including valving means in the form of a transverse cylindrical journal in said housing, a cylindrical valve body with a valve passage therethrough in said transverse cylindrical journal, said means for projecting a substantially axial stream of fog including said housing having a first passage extending axially of the housing in a forward direction from said valving means for connection to said nozzle for liquid flow thereto;
• said means for propelling including a second passage offset from the first passage and extending forwardly from the valving means for conducting liquid to an annular recess at said means for propelling, a rotary sleeve around said annular recess, and a plurality of fog expelling heads mounted on said rotary sleeve in position causing reaction from fog expulsion by said fog expelling heads to rotate said rotary sleeve.