US PATENT CLASS 169
Class Notes
Current as of: June, 1999
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DEFINITION
Classification: 169/
This class includes patents for apparatus and methods designed specifically for extinguishing fire and elements of such apparatus not classifiable in border existing classes; also apparatus capable of performing this function if designed to prevent fire by operating in anticipation of fire conditions.
LINES WITH OTHER CLASSES
Devices whose sole function is the extinguishing of fire by smothering are included in this class (169); but devices for smothering fire by closing doors, windows, shutters, and the like are excluded. For the latter see Class 49, Movable or Removable Closures, and Class 160, Flexible or Portable Closure, Partition, or Panel, especially subclass 1 and indented subclasses. Where the smothering and extinguishing actions are combined, the patent is classified in the appropriate subclass of this class (169).
Apparatus for the general purpose of distributing fluids is found in Class 137, Fluid Handling.
See Class 239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses for apparatus used for sprinkling and spraying of fluids.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS
102, Ammunition and Explosives,
370, for projectiles carrying fire extinguishing gases. 131, Tobacco,
235.1+, 236, 237, and 256 for cigar and cigarette extinguishers.
252, Compositions, for compositions for use in extinguishing fires.