Patent ID: 6868860

Claim:
A fire hydrant, comprising: a. a barrel adapted to communicate at least indirectly with a water conduit; b. a nozzle extending from the barrel and communicating with the barrel; c. a hydrant valve adapted to controllably restrict communication between the barrel and the water conduit; d. a valve actuator adapted to allow actuation of the hydrant valve, said actuator comprising an actuator rod; e. a cap structure adapted to at least close off the end of the barrel not in communication with the water conduit; and f. a second valve for deterring the introduction of toxins into the water conduit, said second valve disposed between the hydrant valve and the nozzle, comprising: (i) a seat disposed below the bottom of the nozzle; (ii) a restriction member adapted to cooperate with the seat to close off communication between portions of the barrel above the second valve and portions of the barrel below the second valve when the nozzle is open and water is not flowing through the nozzle, wherein a portion of the restriction member receives the actuator rod; and (iii) biasing structure adapted to bias the restriction member against the seat so that water from the conduit flows through the nozzle only when the hydrant valve is at least partially open and the nozzle is at least partially open and for regulating the opening of the restriction member.