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: 126
 Class Title: STOVES AND FURNACES

Subclass  Subclass
Number    Title

  561     SOLAR HEAT COLLECTOR FOR POND OR POOL
  562     .Including auxiliary source for adding heat to pool
  563     .Remotely located from pool
  564     .Within pool water
  565     .On pool water surface
  566     ..Pool cover is collector
  567     .With means to extract heat from pond liquid
  568     .In contact with pond liquid
  569     SOLAR HEAT COLLECTOR
  570     .Having external damage preventer
  571     ..Comprising movable support
  572     .With control means energized in response to actuator stimulated
            by condition sensor
  573     ..Including sun position tracking sensor
  574     ...With computer
  575     ...With timer
  576     ...With motor
  577     ....With gear
  578     ...Electronic sensor
  579     ...Fluid expansion sensor
  580     ....Gas
  581     ...Solid expansion sensor
  582     ...Phase change sensor
  583     ..Of fluent medium
  584     ...Pressure responsive
  585     ...Temperature responsive
  586     ....Set point control
  587     ....Differential temperature control
  588     ....Freezing prevention
  589     ....Overheating prevention
  590     ...Fluid level responsive
  591     ...Of fluid flow
  592     ....Liquid
  593     ..Of collector
  594     ...Pressure responsive
  595     ...Temperature responsive
  596     ....Set point control
  597     ....Differential temperature control
  598     ....Freezing prevention
  599     ....Overheating prevention
  600     .With means to reposition solar collector for optimum radiation
            exposure
  601     ..Computer
  602     ..Timer
  603     ...Electric
  604     ..Having fluid power
  605     ..Motor
  606     ...Gearing
  607     ..Gearing
  608     ..Manual
  609     .With auxiliary heat source for fluent medium
  610     ..In a tankk
  611     ..In a heat exchanger
  612     ..In the collector
  613     ..Heat pump
  614     ..Fireplace
  615     ..Water heater
  616     ..Hot air furnace
  617     .With heat storage mass
  618     ..Phase change
  619     ..Specific chemical
  620     ..Rocks or soil
  621     .Solar collector forms part of building roof
  622     ..Solar collector includes roof shingles or tiles
  623     .Solar collector supported on existing roof structure
  624     .Rollable or foldable collector unit of nonrigid material
  625     ..Fluent medium is gas
  626     ..Fluent medium is water
  627     .Foldable collector unit of rigid material
  628     .Including means to utilize fluent medium from collector to heat
            interior of building
  629     ..With device to circulate air from room of building through
             collector
  630     ...Plural circulators
  631     ...Circulator located in collector
  632     ...Circulator located in building
  633     ..With fluent medium passage in floor or wall of room
  634     .With means to convey fluent medium through collector
  635     ..Having evaporator and condenser sections (e.g., heat pipe)
  636     ...Particular fluid
  637     ....Gas
  638     ..Thermosyphonic fluid circulation
  639     ...Liquid
  640     ..With storage tank for fluent medium
  641     ...Having heat exchanger within storage tank
  642     ...Tank is heat exchanger
  643     ..With heat exchanger
  644     ...With solid phase change
  645     ...With liquid phase change
  646     ..Pump
  647     ...Blower
  648     ..With radiation trap
  649     ...Plural traps
  650     ...Particular material
  651     ..Conduit absorber structure
  652     ...Surrounded by transparent enclosure
  653     ....Sealed chamber between enclosure and absorber contains
               vacuum promoter (e.g., getter)
  654     ....Sealed chamber between enclosure and absorber contains gas
               for promoting heat transfer
  655     ....Plurality of conduit absorbers
  656     ....Axis of conduit is curved (e.g., helical or serpentine)
  657     ....With reflector
  658     ...Having heat-absorbing fin or plate
  659     ....With fastener to secure fin to conduit
  660     ....Plate integral with conduit
  661     ....Plate surface with conduit secured thereto
  662     ....Conduit positioned in a groove in the plate
  663     ...Plural conduits
  664     ....Noncircular conduitt
  665     ....Flexible conduit
  666     ...Rectangular metallic conduit
  667     ....Having internal partition
  668     ...Rectangular nonmetallic conduit
  669     ....Having internal partition
  670     ...Circular metallic conduit
  671     ....Having internal partition
  672     ...Circular nonmetallic conduit
  673     ....Having internal partition
  674     ...Absorber having extended surface
  675     ....Corrugated surface
  676     ...Particular absorber material
  677     ....Metal
  678     .Particular fluent medium including radiation absorbing
            material
  679     ..Specific chemical
  680     .Energy concentrator with support for material heated
  681     ..Solar oven
  682     ...Having foldable energy concentrator
  683     .With concentrating reflector and concentrating lens
  684     .With concentrating reflector
  685     ..Plural reflectors in optical series
  686     ...Flat and curved
  687     ...Flat
  688     ..Spot focus
  689     ...Spherical
  690     ...Parabolic
  691     ...Elliptical
  692     ..Line focus
  693     ...Circular
  694     ...Parabolic
  695     ...Elliptical
  696     ..Reflector support
  697     ..Inflatable reflector
  698     .With concentrating lens
  699     ..Circular lens
  700     ..Lens support
  701     .Controlling solar radiation
  702     ..Interconnected slats (e.g., blinds, shutters)
  703     ..Manual
  704     .Collector housing
  705     ..Cover
  706     ...Insulation
  707     ...Plastic
  708     ...Glass
  709     ..Insulation
  710     ..Particular material
  711     ...Plastic
  712     ...Glass
  713     ...Metal
  714     PROCESS OF HEATING BY USING SOLAR HEAT
  204     BODY WARMERS
  205     .Bed heaters
  207     .Heated block
  206     .Composition fuel
  208     .Liquid or gaseous fuel
  209     ..Combined heater and lantern
  210     ..Water heaterr
  401     TOOL HAVING FLUID FUEL BURNER
  402     .Branding iron
  403     ..Gas
  404     ..Hydrocarbon reservoir
  405     .Burning tool
  406     ..Gas
  407     ..Hydrocarbon reservoir
  408     .Curling iron
  409     ..Hydrocarbon reservoir
  410     .Roll heating type
  411     .Sadiron
  412     ..Hydrocarbon reservoir
  413     .Soldering iron
  414     ..Hydrocarbon reservoir
  226     TOOL HEATERS
  236     .Soldering iron
  237     ..Gas heaters
  238     ...Tool-controlled valve
  239     ..Liquid fuel
  240     ...Combined heater and solder pot
  241     ...Lamp
  229     .Liquid or gaseous fuel
  231     ..Gas burner attachments
  232     ...Combined lighting and heating
  233     ...Jet mixer
  234     ...Tool-controlled valve
  235     ..Lamp attachments
  230     ..Flatiron
  227     .Flatiron
  228     ..Attachments
  284     GLUE POTS
  281     DOUGH RAISERS
  282     .Lamp type
  343.5 R MELTING FURNACES
  343.5 A .Other than snow (asphalt, etc.)
  19.5    COMBUSTION ENGINE-HEATED COOKING STOVES, OVEN OR HEATING
           VESSELS
  500     FIREPLACES OR ACCESSORIES
  501     .Hopper feed of solid fuel
  502     .Condition responsive control
  503     ..Of fluid fuel feed
  504     ..Of flue damper
  505     .With article warming shelf on grate
  506     .With food cooker
  507     .With filter
  508     .With room humidifier
  509     .For heating plural rooms
  510     ..Fireplace in dividing wall
  511     ...Rotatable fire chamber
  512     .Fluid fuel
  513     .With liquid heater
  514     ..And means conducting liquid to room heater
  515     .Inlet air supply from outside fireplace room
  516     ..With air pump
  517     ...And air flow regulator
  518     ..With air flow regulator
  519     .Circular viewability of flame
  520     .Insertable into existing windoww
  521     .With air pump
  522     ..Tubular heat exchanger
  523     .With heat exchanger for room heating air
  524     ..Tubular
  525     ...Secondary outlet leads air to flame
  526     ...With air flow regulator
  527     ..Secondary outlet leads air to flame
  528     ..Air flow path between exterior surface of heat exchanger and
             facing building surface
  529     ...And additional flow path through hollow walled heat
              exchanger
  530     ...With air flow regulator
  531     ..Hollow side walls in heat exchanger
  532     ..With means facilitating ash removal
  533     ..With air flow regulator
  534     ...And adjustable flue damper
  535     ..And adjustable flue damper
  536     .Adjustable flue damper
  537     ..Screw operator
  538     ..Variable predetermined positions
  539     ..From exterior of front face of fireplace
  540     .Grate structure
  541     ..Relatively movable parts
  542     ...Including means facilitating ash removal
  543     ....With removable ash pan
  544     .Front barrier or guard
  545     ..With particular seal
  546     ..Vertically adjustable
  547     ..Solid front cover
  548     ...And perforated screen
  549     ...And auxiliary air flow adjuster
  550     ..Smoke collecting hood
  551     ..Screen slidable on track
  552     .Heat reflecting structure
  553     ..Adjustable
  554     .With means facilitating ash removal
  555     ..Removable ash pan
  344     WATER HEATERS
  345     .Kettle furnace
  346     ..Canning
  348     ..Steam generators and cookers
  349     ..Tilting
  347     ..Horizontal combustion chamber
  369     .Steaming apparatus
  369.1   ..With additional heating fluid
  369.2   ..Plural steam chambers
  369.3   ...Selective supply
  361     .Stand boilers
  362     ..Circulation
  363     ..Supports
  364     .Stovepipe
  365     ..Circulation
         .Submerged
  367     ..Portable
  366     ..Closed systems pipes
  368     ..Stationary
  373     .Vessels
  374     ..With automatic controll
  375     ..With heat accumulator
  376     ..Fluid-heated
  377     ...Steam- or water-heated
  378     ....Closed chamber or coil
  379     ....Jet
  380     ..With liquid supply
  381     ..With condenser
  382     ...Condensing liquid
  383     ..Overflow directors or receptors
  384     ...In vessel closure
  385     ...Annular receptor
  386     ....With return
  387     ..With heat-type agitator or circulator
  388     ..With signal or indicator
  389     ..With vent passage
  390     ..Heating-surface construction and arrangement
  391     ...Fire tube type
  392     ...Water tube type
  350 R   .Liquid and gaseous fuel
  351     ..Automatic
  355     ..Drip plate
  357     ..Hinged or separable
  358     ..Lamp type
  359     ..Overflow
  360 R   ..Submerged
  360 A   ...Submerged flame
  350 A   ..Automobile radiator heater
  350 B   ..Vaporizers and humidifiers
  350 C   ..Washing machines
  350 D   ..Shower bath
  *       HEATERS
  263 R   .Chemical
  263 A   ..Oxidation with air
  263 B   ..Crystallization of supercooled liquid
  263 C   ...Having triggering device located within container
  263 D   ..Solid in contact with liquid (e.g., lime and water)
  263 DA  ...Including separate solid and liquid compartments
  263 DB  ....Flexible wall container
  263 DC  .....Including mechanical means to rupture or open solid or
                liquid compartment
  263 DD  ....Including mechanical means to rupture or open solid or
               liquid compartment
  263 E   ....Including time release substance
  246     .Dish
  269     .Powder
  261     .Lunch
  268     ..Wagon
  265     ..Liquid or gaseous fuel
  266     ...Dinner buckets
  267     ....Combined bucket and lantern
  262     ..Combined can and heater
  271.1   .Surface
  271.2 R ..Fluid fuel
  271.2 A ...Pavement heaters
  271.2 B ...Switch heaters
  271.2 C ...Machine open burners
  271.3   ..Solid fuel
  247     .Frictionall
         .Liquid or gaseous fuel
         ..Attachments
  248     ...Drum
  249     ...Gas jet
  254     ....Combined
  252     ....Article support
  253     .....Jet mixer
  250     ....Air
  251     .....Jet mixer
  255     ...Lamp
         ....Chimney heaters
  258     .....Article support
  257     .....Air
         ....Stands
  260     .....Article support
  259 R   .....Air heaters
  259 M   ......Drums, mufflers and heat exchangers
  256     ....Article support
  *       TRASH BURNERS
  222     .Cooking stoves
  223     ..Feeding attachments
  225     .Heating stoves
  224     .Domestic-refuse burners
  99 R    HOT-AIR FURNACES
  100     .Combined with cooking stove
  101     .Combined with boiler
  110 R   .Compressed air
  110 A   ..Blower and air damper
  110 AA  ..Downflow of air being heated
  110 B   ..Unit heaters
  110 C   ..Gas and air mixing
  110 D   ..Unitary fan and heater
  110 E   ..Thermally actuated air-propelling means
  111     .Double fire pot
  116 R   .Liquid or gaseous fuel
  116 A   ..Automatic control
  116 B   ..Floor and wall furnaces
  116 C   ..Electric auxiliary
  117     .Preliminary air heater
  106     .Internal air chamber
  108     .Secondary heating chamber horizontally arranged
  109     .Tubular air heater
  107     .Magazine
  104 R   .Horizontal combustion chamber
  104 A   ..Blowers
  102     .Circular radiating drum
  103     .Downdraft
  112     .Feeding air
  113     .Air moisteners
  114     .Casings
  115     .Dust flue
  105 R   .Hot-air equalizers
  105 A   ..Fan in casing top
  118     .Radiating flanges
  119     .Joints
  99 P    .Pipeless
  99 A    .Tubular heater
  99 C    .Helical passagess
  99 D    .Air baffles
  *       STOVES
  1 R     .Cooking
  24      ..Ship's galley
  25 R    ..Summer
  29      ...Field
  30      ....Supporting frame
  27      ...Stove top-supported
  28      ....Stove flue-connected
  26      ...Detachable fire pot
  25 A    ...Variable distance from heat source
  25 AA   ...Rotating and elevating
  25 B    ...Igniting
  25 C    ...Extinguishing
  9 R     ..Knockdown or separable
  9 A     ...Disposable units
  9 B     ...Knockdown elements
  4       ..Combined cooking and heating stove
  5       ...Steam or water generators
  6       ...Air-heating
  7       ...Magazine
  8       ..Brick set
  23      ..Reversible
  2       ..Double fire pot
  3       ...Cooking and heating
  10      ..Magazine
  11      ...Portable
  33      ..Tables, steam-heated
  55      ..Combined base and hot closet
         ..Liquid or gaseous fuel
  38      ...Folding or nesting kit
  37 R    ...Cabinet
  37 A    ....Top cover plate
  37 B    ....Slidable, fold, or swingable
  36      ...Combined coal and gas
  52      ...Valve mechanism, article-controlled
  53      ...Water backs
  54      ....Combined burner and water back
  39 R    ...Gas
  41 R    ....Broilers
  41 A    .....Rotary-vertical axis
  41 B    .....Rotary-horizontal axis
  41 C    .....Endless chain
  41 D    .....Drawer
  41 E    .....Drawer-elevating
  40      ....Burner stands
  42      ....Safety attachments
  39 A    ....Heating kitchen
  39 B    ....Frame structure
  39 BA   ....Electric features
  39 C    ....Miscellaneous ovens
  39 D    ....Indirectly heated
  39 E    ....Burners and lighters
  39 F    ....Fireless cookers
  39 G    ....Thermostatic control
  39 H    ....Hot plates
  39 N    ....Hot plates, front plates, valve and manifold
  39 J    ....Hot plates with radiantss
  39 K    ....Hot plates, air feed, and flame shields
  39 L    ....Rotating stove
  39 M    ....Removable liner
         ...Liquid
  43      ....Alcohol
  44      ....Vapor
  45      ....Wick
  46      .....Extension top
  47      .....Lamp type
  48      ......Combined top, chimney and burner
  49      .....Reservoir supporting top and burner
  51      ....Drip pan or receptacle
  50      ...Supporting frame
  15 R    ..Feeding air
  15 A    ...Forced air
  16      ..Flue cleaners
         ..Elevated ovens
  17      ...Smoke pipe-heated
  18      ...Top plate-supported
  19 R    ..Ovens
  20      ...Steam or hot water
  20.1    ....Plural
  20.2    .....Selective supply
  21 R    ...Ventilated
  21 A    ....Forced circulation
  22      ...Protector plate
  19 M    ...Movable ovens
  34      ..Water backs
  35      ...Safety devices
         ..Water-heating
  31      ...Flue extension
  12      ..Hearths
  13      ...Fire pot
  14      ..Broiling attachments
  32      ..Spittoon attachments
  1 A     ..Side oven
  1 AA    ..Wall in common
  1 AB    ..Wall separate
  1 AC    ..Wall laterally spaced
  1 AD    ..Wall lateral air feed
  1 AE    ..Wall lateral gas passage
  1 B     ..Side and superimposed oven
  1 C     ..Side and underlying oven
  1 D     ..Superimposed oven
  1 E     ..Underlying oven
  1 F     ..Insulation
  56      .Car
  57      ..Protective casings
  58      .Heating
  59      ..Camp
  59.5    ..Orchard
  60      ..Horizontal body
  61      ...Hot air
  64      ..Panel
  65      ..Sheet metal
  66      ...Hot air
  79      ..Smoke and gas returning
         ..Liquid or gaseous fuell
  84      ...Combined heating and ventilating
  85 R    ...Gas
  91 R    ....Radiator type
  91 A    .....Elongated radiant tube
  86      ....Open front
  87      .....Asbestos fireback
  88      ......Hot air
  89      .....Hot air
  90 R    ....Hot air
  90 A    .....Electric heater
  92 R    ....Incandescent fire grate
  92 AC   .....Radiant
  92 A    .....Electric radiant
  92 B    .....Radiant with reflector
  92 C    .....Radiant enclosed by furnace shell
  85 A    ....Brooder stoves
  85 B    ....Connected to outside
  93      ...Liquid
  94      ....Flue-connected
  95      ....Vapor
  96      ....Wick
  97      .....Heating and illuminating
  67      ..Hot air
  68      ...Magazine
  69      ...Revertible draft, base-heating
  72      ...Tubular air heaters
  70      ...Internal air chamber
  71      ...Central air tube
  73      ..Magazine
  74      ...Revertible draft, base-heating
  75      ..Revertible draft, base-heating
  76      ..Downdraft
  77      ..Feeding air
  78      ..Feeding steam
  80      ..Ventilating attachments
  81      ..Stove plates
  82      ..Adjustable pipe collar
  83      ..Deflector plate
  98      ..Joints
  *       OVENS
  273 R   .Domestic
  273.5   ..With heat accumulator, e.g., fireless
  274     ..Dutch
  275 R   ..Portable
  275 E   ...Electric
  273 A   ..Wall-mounted
  276     .Wagon
  144     FIRE POTS AND LININGS
         .Rotary
  149     ..Horizontal axis
  150     ..Vertical axis
  145     .Adjustable
  146     .Feeding air
  147     .Divided
  151     .Sectional
  148     .Fire plate
  242     ASH DISCHARGE AND COLLECTING
  245     .Combined stove and ash pann
  243     .Ash pans
  244     ..Sifting
  211     STOVE LIDS AND TOPS
  217     .Heating stove
  218     ..Cooking attachments
  219     ..Ornaments and urns
  213     .Illuminating
  214 R   .Liquid or gaseous fuel
  215     ..Elevating support
  216     ..Extension top
  214 A   ..Units mounted in counter top
  214 B   ..Buck panel structure
  214 C   ..Top grid
  214 D   ..Shields and deflectors
  212     .Centers or cross pieces
  220     .Lids
  221     .Stove mats
  400     HEAT ACCUMULATOR STRUCTURES
  190     STOVE DOORS AND WINDOWS
  198     .Oven doors, ventilating
  193     .Feeding air
  191     .Balanced
         .Latches
  197     ..Combined latch and operator
  192     .Door-operator
  194     .Hinges
  200     .Transparent panel
  332     STOVE SHELVES
  337 R   .Oven shelf or rack
  338     ..Rotary
  339     ..Sliding
  340     ...Door-operated
  337 A   ..Shelf-adjusting
  334     .Drop
  335     ..Door-operated
  333     .Brackets or stands
  285 R   DAMPERS
  285.5   .Timer-controlled
  286     .Distance operating devices
  287     ..Door-operated
  287.5   .Fusible release
  289     .Stove
  290     ..Draft
  291     ..Repair
  292     .Stovepipe
  293     ..Combined damper and ventilator
  295     ..Lock and indicator
  296     ..Multiple
  297     ..Sinuous passage
  294     ..Cone
  285 A   .Slide
  285 B   .Electric
  152 R   GRATES
  163 R   .Feeding air
  163 A   ..Auxiliary grate
  153     .Adjustable
  154     ..Vertically
  160     .Closuress
  166     .Fuel cut-off
  161     .Cut-off
         .Rotary
  181     ..Horizontal axis
  182     ..Vertical axis
         .OSCILLATORY
  170     ..Vertical axis
  171     ...Dumping section
  172     ...Sliding section
  176 R   .Rocking bar
  177     ..Dumping
  178     ..Duplex
  179     ..Grate bar
  180     ...Removing fuel support
  176 A   ..Detachable shaker arms
  174     .Reciprocating
  175     ..Alternate bar
  155     .Agitating
  159     ..Pocket
  158     ..Dumping
  156     ..Alternate ends
  157     ..Alternate bar
  162     .Dumping
  167     .Grate bar
  168     ..Removable fuel support
  169     .Operating mechanism
  173     .Raking attachments
  152 A   .Reinforcements
  152 B   .Special features
  299 R   STOVE HOODS
  300     .Stove discharge
  301     .Stovepipe discharge
  302     ..Stove casing
  303     ..Top plate casing
  299 C   .Splatter shields
  299 D   .Stove surface ventilation only
  299 E   ..Including liquid contact
  299 F   .Smoke eliminators and flue deflectors
  307 R   STOVEPIPES
  312     .Ventilation
  313     .Air-moistening attachments
  307 A   .Back draft diverter
  314     STOVEPIPE THIMBLES
  316     .Combined thimble and ventilator
  315     .Adjustable flue collar
  318     .Stovepipe anchor or lock
  319     .Flue stoppers
  317     .Floor or ceiling plates
  280     SOOT CATCHERS
  201     FENDERS
  298     FIRE DOGS
  277     PLATFORMS
  278     .Stove boards
  279     .Ventilating
  304 R   STOVE LEGS
  305     .Base supports
  306     .Sheet metal
  304 A   .Adjustable legss
  283     FUEL BOXES
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  903     SOLAR COLLECTOR CLEANING DEVICE
  904     ARRANGEMENTS FOR SEALING SOLAR COLLECTOR
  905     PREVENTING CONDENSING OF MOISTURE IN SOLAR COLLECTOR
  906     CONNECTING PLURAL SOLAR COLLECTORS AS A UNIT
  907     ABSORBER COATING
  908     .Particular chemical
  909     LINEAR CONCENTRATING LENS
  910     HEAT STORAGE LIQUID