US PATENT SUBCLASS 169 / 5
FLUID SYSTEMS

Current as of: June, 1999
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169 /   HD   FIRE EXTINGUISHERS

5FLUID SYSTEMS {7}
6  DF  .~> Chemical pressure generating {1}
9  DF  .~> Gas-pressure discharge
10  DF  .~> Gravity
11  DF  .~> Gas {1}
13  DF  .~> Pump supply
14  DF  .~> Plural source, mixing in transit {1}
16  DF  .~> Distributing systems {2}

DEFINITION

Classification: 169/5

(under the class definition) The general type of complete extinguishing apparatus under the ... involving a source of extinguishing fluid, distributing-pipes for conveying the fluid, to distant points of application, discharge outlets for delivering the fluid, and means for causing the propulsion of the fluid through the system when desired, the latter means including the force of gravity.

(1) Note. This subclass includes systems in which the distributing-pipes have combined functions, such as serving for both extinguishing and heating or ventilating.