PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


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363-131 121-55A 14-.5
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Class Number: 165
 Class Title: HEAT EXCHANGE

Subclass  Subclass
Number    Title

  1       PROCESS
  2       .Heating and cooling
  3       ..Humidity adjusting
  4       REGENERATOR
  5       .Cleaning
  6       .Movable heat storage mass with enclosure
  7       ..With fluid handling system
  8       ..Rotary heat collector
  9       ...Seals
  9.1     .Checker brick structure
  9.2     ..Gradated flow area, heat capacity or heat resistance
  9.3     ..Having gas supply or exhaust manifold structure
  9.4     ..In casing
  10      .Heat collector
  11.1    WITH ALARM, INDICATOR, SIGNAL, REGISTER, RECORDER, TEST OR
           INSPECTION MEANS
  11.2    .Remotely controlled inspection means
  12      TIME OR PROGRAM ACTUATOR
  13      AUTOMATIC CONTROL
  14      .Heating and cooling
  15      ..With cabin pressure control
  16      ..With ventilation control
  17      ..Defrosting
  18      ..With control of heat storage
  19      ..With gas and liquid contact fluid flow control
  20      ...By humidity sensor
  21      ..With humidity sensor controlling humidity
  22      ..Correlation of plural zone controls and central system
             control
  23      ..Responsive to vehicle body motion
  24      ..With manual control
  25      ...Manual selector modifies automatic control
  26      ..Single sensor controls both heating and cooling
  27      ..Selective heating or cooling
  28      ...Room and ambient temperature sensors
  29      ..Heat pump with supplemental heat source controlled
  30      ..Opposed compensating heating and cooling
  31      ..Pressure response or control
  32      .Temperature or pressure
  33      ..With correlated manual actuation
  34      ..Branched flow of exchanging fluid
  35      ...By-pass of heat exchanger
  36      ....Mixture temperature sensing
  37      .....With pressure response
  38      ....Pressure controlled
  39      ..Flow of one heat exchanging material controlled by the
             condition of another
  40      ..Flow of heat exchanging material controlled by its own
             condition
  41      WITH VEHICLE FEATURE
  42      .Heating and cooling
  43      ..Vehicle contained common power and heat supplyy
  44      .Utilizing motion of vehicle
  45      GEOGRAPHICAL
  46      FLEXIBLE ENVELOPE OR COVER TYPE
  47      STRUCTURAL INSTALLATION
  48.1    .Heating and cooling
  48.2    ..Solar
  49      ..Radiant building panel
  50      ..Room heat exchangers with central fluid supply
  51      .Engine
  52      ..Exchange between engine supply and exhaust lines
  53      .Related to wall, floor or ceiling structure of a chamber
  54      ..In a chamber connected passage traversing the structure
  55      ..Projecting shield forms passage with the structure
  56      ..Hollow or recess in the structure connected for exchange fluid
             flow
  57      ...Ported to the chamber
  58      HEATING AND COOLING
  59      .With ventilation
  60      .Gas-liquid contactor
  61      .Heating and cooling of the same material
  62      ..Refrigerating system conversion
  63      ..Refrigeration producer
  64      ..Heat generator
  65      ..Heater and cooler serially arranged
  66      ...Heat exchange between supply and exhaust lines
  67      WITH EXTERNAL SUPPORT
  68      .Legs
  69      RESILIENT VIBRATION DAMPER ISOLATING EXCHANGER ELEMENT
  70      WITH LEAKAGE COLLECTOR
  71      WITH PURGE, OR DRAINAGE, COCK OR PLUG
  72      COVERED ACCESS OPENING
  73      .Cover is, or carries, heat exchanging means
  74      ..Heat exchanging means projects into the covered chamber
  75      .Heating or cooling means within the covered chamber
  76      WITH REPAIR OR ASSEMBLY MEANS
  77      .Hinge
  78      .Guide
  79      .Positioner or retainer for settable material
  80.1    WITH RETAINER FOR REMOVABLE ARTICLE
  80.2    .Electrical component
  80.3    ..Air cooled, including fins
  80.4    ..Liquid cooled
  80.5    .Including liquid heat exchange medium
  81      EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS
  82      .Relieving or absorbing means supports temperature modifier in
            heat exchanger
  83      ..Flexible fluid confining wall
  84      WITH MEANS FLEXING, JARRING OR VIBRATING HEAT EXCHANGE SURFACE
  85      AGITATOR OR IMPELLER MOTOR OPERATED BY EXCHANGE FLUID
  86      MOVABLE HEATING OR COOLING SURFACE
  87      .Hollow screw type impeller
  88      .Rotor carrying separate chambers for two exchanging fluents
  89      .Rotary drum
  90      ..With means applying fluids for exchange through drum wall
  91      ...With drum surface scraper
  92      .Hollow strirrer or scraper
  93      ..Material advancer in shelf to shelf device
  94      WITH SCRAPER REMOVING PRODUCT FROM TEMPERATURE MODIFYINGG
           SURFACE
  95      WITH CLEANING MEANS FOR HEAT EXCHANGER
  96      WITH ADJUSTOR FOR HEAT, OR EXCHANGE MATERIAL, FLOW
  97      .Flow reversed or crossed within temperature modifying zone
  98      .Adjustable radiator face covering means
  99      ..Discharge grille or diffuser
  100     .Branched flow
  101     ..Controls flow through parallel heating or cooling means
  102     ..Tortuous and straight through branches within heating or
             cooling drum
  103     ..By pass of heating or cooling means
  104.11  INTERMEDIATE FLUENT HEAT EXCHANGE MATERIAL RECEIVING AND
           DISCHARGING HEAT
  104.12  .Reversible chemical reaction
  104.13  .Plural intermediate fluent heat exchange materials
  104.14  ..Always out of direct contact with each other
  104.15  .Solid fluent heat exchange material
  104.16  ..Fluidized bed
  104.17  ..Utilizing change of state
  104.18  ..Including means to move heat exchange material
  104.19  .Liquid fluent heat exchange material
  104.21  ..Utilizing change of state
  104.22  ...Including means to move heat exchange material in liquid
              state
  104.23  ....By direct application of electrical energy to heat
               exchange material
  104.24  ....By application of heat other than in heat receiving
               area
  104.25  ....By application of mechanical energy
  104.26  ...Utilizing capillary attraction
  104.27  ...With pressurizing means or degassifying means
  104.28  ..Including means to move heat exchange material
  104.29  ...Utilizing formed bubble
  104.31  ...By application of mechanical energy
  104.32  ..With pressurizing means or degassifying means
  104.33  ..Cooling electrical device
  104.34  .Including means to move gaseous heat exchange material
  108     RECIRCULATION
  109.1   WITH AGITATING OR STIRRING STRUCTURE
  110     WITH FIRST FLUID HOLDER OR COLLECTOR OPEN TO SECOND FLUID
  111     .Separate external discharge port for each fluid
  112     ..With downstream pressure or temperature modifier
  113     ...Surface-type heat exchanger
  114     ..With baffle at inlet to less dense fluid discharge port
  115     .Trickler
  116     ..Shelf to shelf
  117     ..Pipe exterior to pipe exterior
  118     ..Vertical cone or drum
  119     WITH SOLIDS SEPARATOR FOR EXCHANGE FLUID
  120     WITH IMPELLER OR CONVEYOR MOVING EXCHANGE MATERIAL
  121     .Mechanical gas pump
  122     ..Heating or cooling means and gas pump in housing
  123     ...With injector-type gas pump
  124     ...Verging gas flow
  125     ....Radial flow through annular heating or cooling means
  126     ....Single inlet, plural outlets
  127     .....Gas pump for each outlet stream
  128     THERMOSYPHONIC FLUE TYPEE
  129     .Heating or cooling means within distinct flue forming
            enclosure
  130     .Flue formed between facing second fluid containing conduits
  131     .Flues formed by vertical corrugations of heat transmitter
  132     HEATING OR COOLING MEANS IN OPEN COMMUNICATION WITH RESERVOIR
  133     WITH COATED, ROUGHENED OR POLISHED SURFACE
  134.1   WITH PROTECTOR OR PROTECTIVE AGENT
  135     WITH THERMAL OR ACOUSTICAL BLOCKER
  136     .Insulation and temperature modifier within barrier member
  137     CONVERTIBLE
  138     COMBINED
  139     INTERNALLY BRANCHED FLOW, EXTERNALLY PORTED
  140     THREE NON-COMMUNICATING FLUIDS
  141     .Concentric flow chambers
  142     SPUR TUBE PROJECTS INTO ENCLOSURE
  143     PLURAL CASTING-CONDUIT UNITS<< LINE OR COMMON HEADER CONNECTED
  144     LINE CONNECTED CONDUIT ASSEMBLIES
  145     .In common casing
  146     GRADATED HEAT TRANSFER STRUCTURE
  147     .Tapered conduit means
  148     RADIATOR CORE TYPE
  149     .With edge cover or frame means
  150     .Serially connected tube sections
  151     .Side-by-side tubes traversing fin means
  152     .Deformed sheet forms passages between side-by-side tube means
  153     ..With tube manifold
  154     NON-COMMUNICATING COAXIAL ENCLOSURES
  155     .With communicating coaxial enclosure
  156     .Helical conduit means
  157     CASING OR TANK ENCLOSED CONDUIT ASSEMBLY
  158     .Manifold formed by casing section and tube sheet of assembly
  159     .With distinct flow director in casing
  160     ..Longitudinal
  161     ...Additional transverse baffle
  162     .With support in casing
  163     .Conduit coiled within casing
  164     FLOW PASSAGES FOR TWO CONFINED FLUIDS
  165     .Interdigitated plural first and plural second fluid passages
  166     ..Stacked plates or shells form interplate passages
  167     ...With plate traversing passages interconnecting alternate
              spaces
  168     CONDUIT WITHIN, OR CONFORMING TO, PANEL OR WALL STRUCTURE
  169     .Wall forms enclosure
  170     .Opposed plates or shells
  171     .Means spanning side-by-side tube elements
  172     SIDE-BY-SIDE TUBULAR STRUCTURES OR TUBE SECTIONS
  173     .With manifold type header or header plate
  174     ..With internal flow director
  175     ..Inlet and outlet header means
  176     ...Side by side
  177     TUBULAR STRUCTURE
  178     .With support or flow connector
  179     .Projecting internal and external heat transfer means
  180     .Diverse materials
  181     .With discrete heat transfer means
  182     ..With means spacing fins on structure
  183     ..Longitudinal extending
  184     ...Helicall
  185     HEAT TRANSMITTER
  186     MISCELLANEOUS
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     COOLING TOWERS
  901     HEAT SAVERS
  902     HEAT STORAGE
  903     CONVECTION
  904     RADIATION
  905     MATERIALS OF MANUFACTURE
  906     REINFORCEMENT
  907     POROUS
  908     FLUID JETS
  909     REGENERATION
  910     TUBE PATTERN
  911     VAPORIZATION
  912     COMBINED OR CONVERTIBLE HEAT EXCHANGE MODES
  913     CONDENSATION
  914     FILMING
  915     FOAMING
  916     OIL COOLER
  917     PRESSURIZATION AND/OR DEGASSIFICATION
  918     HEATED AND COOLED FOOD CABINETS AND/OR TRAYS
  919     .WHEELED
  920     PARTICULATE HEAT EXCHANGE
  921     DEW POINT