US PATENT SUBCLASS 60 / 220
.~.~.~.~ Including injecting modifying fluid

Current as of: June, 1999
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60 /   HD   POWER PLANTS

200.1  DF  REACTION MOTOR (E.G., MOTIVE FLUID GENERATOR AND REACTION NOZZLE, ETC.) {28}
204  DF  .~ Method of operation {1}
205  DF  .~.~ By chemical reaction {7}
219  DF  .~.~.~ Using solid material in reaction zone {1}
220.~.~.~.~ Including injecting modifying fluid

DEFINITION

Classification: 60/220

(under subclass 219) Process directed to injecting a modifying fluid into the reaction zone.

(3) Note. Injecting a modifying fluid into the reaction zone (1) to change the fluid pressure therein to control the reaction rate of the solid propellant material and (2) to react with the solid propellant therein are nonlimiting examples of the scope of this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

208+, for a process in which air is injected into the reaction zone and subclasses 211+, for a process in which solid material and a fluid are injected into the reaction zone in separate streams.