US 5,277,256 AGranted

Firefighter's nozzle

OwnerDallas J. Baileyinventor

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Abstract

A fire suppression nozzle device, to be used by firefighters to selectively and immediately utilize a plurality of different firefighting agents through the single nozzle when circumstances require, the nozzle including a housing having a primary conduit wherethrough water at substantially high pressure and high volume may be emitted, a secondary conduit with a venturi outlet extending into the primary conduit such that a second firefighting agent flowing through the secondary conduit will be drawn into the primary conduit as a result of a venturi effect suction for mixture with the water passing through the primary conduit and emission out an adjustable flow tip on a downstream, open end of the primary conduit, and a third conduit having a fixed emission tip and adapted to receive a high pressure flow of a third firefighting agent therethrough and out a fixed emission tip, all of the conduits including flow control valves to enable facilitated flow adjustment and utilization of a particular firefighting agent only when desired.

Claims9

Dependent claims

A fire suppression nozzle, comprising:

a) A housing having an upstream end and a downstream end,
b) said housing including a primary water conduit extending therethrough,
c) said primary water conduit being structured and disposed to transmit water at a substantially high pressure and high volume of at least 30 gallons per minute therethrough,
d) an adjustable float tip on a downstream, open end of said primary conduit, said flow tip controlling the type of spray emission of water from said primary conduit,
e) a first, exteriorly operable float control valve in said primary conduit, said first valve being structured and disposed to regulate the flow to said primary conduit,
f) said housing further including a secondary conduit, said secondary conduit extending along said housing from said upstream end of said housing toward said downstream end thereof,
g) said secondary conduit including a venturi outlet adjacent a downstream thereof, said venturi outward disposed in fluid communication with an interior of said primary conduit such that said fluid flowing through said secondary conduit will pass into said primary conduit, as a result of a venturi effect suction caused when the water passes through said primary conduit, for subsequent passage out of said housing through said adjustable flow tip on said primary conduit,
h) a second exteriorly operable valve in said secondary conduit, said second valve regulating the flow of fluid through said secondary conduit,
i) said housing including a third conduit, capable of directing a high pressure flow therethrough, extending along said housing with said primary conduit from said upstream end towards said downstream end and further including an emission tip thereon,
j) a third exteriorly operable flow control valve in said third conduit, said third valve being structured and disposed to regulate fluid flow through said third conduit,
k) a triple flow hose including a lock head and at least three independent agent conduits, said lock head being structured and disposed for secure fluid flow connection at said upstream end of said housing such that each of said agent conduits is correspondingly connected with a different one of said primary conduit, said secondary conduit, and said third conduit, and
l) hook up means at said upstream end of said housing, said hook up means being structurally adapted to securely receive said triple flow holes therein.

9 more elements

A fire suppression nozzle device, comprising:

a housing having an upstream end and a downstream end,
said housing including a primary water conduit extending therethrough, said primary water conduit being structured and disposed to transmit water at a substantially high pressure and high volume of at least 50 gallons per minute therethrough,
an adjustable flow tip on a downstream, open end of said primary conduit, said flow tip controlling the type of spray emission of water from said primary conduit,
a first, exteriorly operable flow control valve in said primary conduit, said first valve being structured and disposed to regulate the flow through said primary conduit between a maximum flow position and a no flow position,
said housing further including a secondary conduit, said secondary conduit extending parallel with said primary conduit from said upstream end of said housing,
said secondary conduit including a venturi outlet at a downstream end thereof, said venturi outlet extending into said primary conduit such that fluid flowing through said secondary conduit will pass into said primary conduit, as a result of a venturi effect suction caused when the water passes through said primary conduit, for subsequent passage out of said housing through said adjustable flow tip on said primary conduit,
a second exteriorly operable valve in said secondary conduit, said second valve regulating the flow of fluid through said secondary conduit between no flow and maximum flow,
said housing including a third conduit, capable of directing a high pressure flow therethrough, extending substantially parallel with said primary conduit,
said third conduit having a fixed emission tip structured and disposed to be independently operable,
a third exteriorly operable flow control valve in said third conduit, said third valve being structured and disposed to allow concentrated fluid bursts, constant flow, or zero flow through said fixed emission tip of said third conduit,
hook up means at said upstream end of said housing, said hook up means being structured and disposed to securely receive a triple flow hose, and
said trip flow hose including a lock head and at least three independent agent conduits, said lock head being structured and disposed for secure fluid flow connection at said upstream end of said housing such that each of said agent conduits is correspondingly connected with said primary conduit, said secondary conduit, and said third conduit.

9 more elements

Dependencies are inferred from the claim text.