Patent ID: 7152816

Claim:
A mister nozzle comprising: a misting nozzle housing having an inlet and an outlet; a swirl chamber in said housing adjacent said outlet for creating a mist in said outlet from water entering said swirl chamber; a resilient water seal mounted in said housing blocking the passage of water though said inlet, said resilient water seal opening upon water in the inlet reaching a predetermined pressure to allow the passage of water from said inlet into said swirl chamber and out the outlet in a mist; and said housing having a vent located between said resilient water seal and said swirl chamber for venting one side of said resilient water seal to atmosphere through said swirl chamber and housing outlet; whereby a misting nozzle is actuated by a predetermined water pressure in the inlet thereto and prevents water from draining from the water supply for the nozzle when the pressure drops below a predetermined level.