US PATENT SUBCLASS 169 / 71
.~ Gas pressure

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

30  DF  PORTABLE VESSELS {5}
71.~ Gas pressure {9}
72  DF  .~.~> With means facilitating total discharge {1}
74  DF  .~.~> With particular outlet structure
75  DF  .~.~> With means preventing accidental discharge, relieving pressure, or indicating condition within vessel
76  DF  .~.~> With means permitting repeated discharge
77  DF  .~.~> Power extinguishant
78  DF  .~.~> Produced by chemical mixing {3}
84  DF  .~.~> Produced by combustion
85  DF  .~.~> Pressurizing agent stored apart from agent {3}
89  DF  .~.~> Discharge head

DEFINITION

Classification: 169/71

(under subclass 30) Apparatus, wherein a pressurized gas means is provided and means whereby the pressurized gas may be applied to said agent to expel the same from a container so that said agent may be applied to a fire.

(1) Note. The pressurized gas may be stored ready for use or it may be developed by a pump or other means.

(2) Note. The pressurized gas may be stored with the agent, or it may be stored separately.

SEE OR SEARCH CLASS

222, Dispensing,

394+, for dispensers using fluid pressure to cause discharge. 239, Fluid Sprinkling, Spraying, and Diffusing,

307, 308 and 337+ for sprayers having supply holders and in which the materials are discharged therefrom by the pressure of a gas.