US PATENT SUBCLASS 122 / 438
.~ Spray to steam space

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

412  DF  FEED HEATERS {17}
438.~ Spray to steam space

DEFINITION

Classification: 122/438

(under subclass 412) Subject matter comprising means for spraying water into the steam space of a boiler.

SEE OR SEARCH THIS CLASS, SUBCLASS:

417, and 436, for structure of spraying devices in other types of feed water heaters.

SEE OR SEARCH CLASS

239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses for related spray structures which may be used to inject water into a boiler.