US PATENT SUBCLASS 60 / 728
.~.~.~ Having oxidizer cooling means

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

39.01  DF  COMBUSTION PRODUCTS USED AS MOTIVE FLUID {31}
722  DF  .~ Combustion products generator {14}
726  DF  .~.~ With means to pressurize oxidizer for combustion or other purposes {3}
728.~.~.~ Having oxidizer cooling means

DEFINITION

Classification: 60/728

Having oxidizer cooling means:

(under subclass 726) Device having a means to cool at least a portion of the oxidizer prior to its use in the combustion zone or prior to its use for some other purpose in the combustion device.

(1) Note. This subclass includes means to inject a vaporized coolant, such as water or fuel, into a combustion supporting air flow to effect cooling thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

257+, for reaction motors employing means to cool or liquefy air for subsequent use in the formation of a propellant for said motor.