Patent ID: 8006923

Claim:
A firefighting nozzle comprising: a nozzle body having a longitudinal central axis, an inlet, and an outlet; a passageway having a smooth bore extending between said inlet and said outlet; a compressible member defining at least a portion of said passageway, said compressible member having an inner dimension transverse to the longitudinal central axis; and an adjuster mounted about said compressible member for selectively compressing the compressible member, and wherein the pressure of the fluid flowing into the nozzle applies an outwardly directed pressure on the compressible member to thereby increase the inner dimension of the compressible member, and said nozzle body configured to divert at least a portion of the fluid pressure from said passageway exteriorly of said nozzle body for applying an inwardly directed pressure on the compressible member to thereby at least reduce the force needed to be applied by the adjuster to counter-act the outwardly directed pressure when adjusting the flow rate of the nozzle.