US PATENT SUBCLASS 60 / 684
.~.~ Including interstage reheat means


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

643  DF  MOTIVE FLUID ENERGIZED BY EXTERNALLY APPLIED HEAT {11}
682  DF  .~ Single state motive fluid energized by indirect heat transfer {2}
684.~.~ Including interstage reheat means


DEFINITION

Classification: 60/684

(under subclass 682) Apparatus, including serially connected motors or motor stages and in which motive fluid passing between the motors or stages is indirectly heated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39.17, for a system using combustion products as motive fluid having an interstage cooler or heater.

653, for the condition responsive control of an interstage heater or mixer.

679, for a heat operated power system involving a change of state having a motive fluid reheater between serially connected motors or motor stages.

SEE OR SEARCH CLASS

415, Rotary Kinetic Fluid Motors or Pumps, 179, for a rotary kinetic fluid motor or pump having a heat exchanger intermediate two sets of blades serving to transfer heat to or from the working fluid as it passes from one set to the next succeeding set. See paragraph (1) of the Search Class reference to Class 60 in the class definition of Class 415, for the line as to this subject matter.