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


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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.