US Patent Class 60
POWER PLANTS-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
200.1  DF  REACTION MOTOR (E.G., MOTIVE FLUID GENERATOR AND REACTION NOZZLE, ETC.) {28}
595  DF  INTERNAL COMBUSTION TYPE FREE PISTON DEVICE SUPPLIES MOTIVE FLUID TO MOTOR
596  DF  INTERNAL COMBUSTION TYPE FREE PISTON DEVICE WITH PRESSURE FLUID STARTING MEANS
597  DF  FLUID MOTOR MEANS DRIVEN BY WASTE HEAT OR BY EXHAUST ENERGY FROM INTERNAL COMBUSTION ENGINE {5}
272  DF  INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
625  DF  INTERNAL COMBUSTION ENGINE WITH STRUCTURE ROTATING OR STARTING IT BY PRESSURE FLUID {2}
632  DF  ONE SHOT EXPLOSION ACTUATED EXPANSIBLE CHAMBER TYPE MOTOR {6}
39.01  DF  COMBUSTION PRODUCTS USED AS MOTIVE FLUID {31}
639  DF  MOTOR ACTUATED BY ACCUMULATING AND DUMPING LIQUID OR FLUENT MATERIAL {1}
641.1  DF  UTILIZING NATURAL HEAT {3}
516  DF  MOTOR OPERATED BY EXPANSION AND/OR CONTRACTION OF A UNIT OF MASS OF MOTIVATING MEDIUM {3}
508  DF  FLUID WITHIN EXPANSIBLE CHAMBER HEATED OR COOLED {6}
642  DF  MOTIVE STEAM GENERATED FROM HOT WATER CHARGE BY REDUCING PRESSURE ABOVE CHARGE
643  DF  MOTIVE FLUID ENERGIZED BY EXTERNALLY APPLIED HEAT {11}
325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
495  DF  MOTOR HAVING A BUOYANT WORKING MEMBER {2}
685  DF  MOTOR HAVING EXHAUST FLUID TREATING OR HANDLING MEANS {6}
698  DF  SYSTEM HAVING PLURAL MOTORS OR HAVING DIVERSE TYPES OF ENERGY INPUT {13}
721  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  EXCESS AIR TO INTERNAL COMBUSTION ENGINE TO ASSIST EXHAUST TREATMENT
901  DF  EXHAUST TREATMENT SPECIAL TO ROTARY INTERNAL COMBUSTION ENGINES
902  DF  ROTARY REACTOR, SEPARATOR OR TREATER OF EXHAUST OF AN INTERNAL COMBUSTION ENGINE
903  DF  CLOSURES OPERATORS
904  DF  PROPELLER OR AIR PLANE SYSTEM
905  DF  WINDING AND REELING
906  DF  ENGINE SPEED RESPONSIVE THROTTLE CONTROL SYSTEM
907  DF  WORKING MEMBER POSITIONED AGAINST COUNTERFORCE BY CONSTANTLY APPLIED MOTIVE FLUID
908  DF  WASHING MACHINE SYSTEM
909  DF  REACTION MOTOR OR COMPONENT COMPOSED OF SPECIFIC MATERIAL
910  DF  FREE PISTON
911  DF  FLUID MOTOR SYSTEM INCORPORATING ELECTRICAL SYSTEM
912  DF  COOLING MEANS
913  DF  COLLECTION OF REGGIO PATENTS
914  DF  EXPLOSIVE
915  DF  COLLECTION OF GODDARD PATENTS
916  DF  UNITARY CONSTRUCTION
917  DF  SOLID FUEL RAMJET USING PULVERIZED FUEL