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: 219
 Class Title: ELECTRIC HEATING

Subclass  Subclass
Number    Title

  6.5     INDUCTION HEATING, ELECTRO-STATIC OR ELECTRO-MAGNETIC
  7.5     .Metal working (e.g., levigation, machining, stretching)
  8.5     ..Tubes and pipes
  9.5     ..Bonding to metal (e.g., welding)
  10.41   .Methods
  10.43   ..Selective area
  10.47   .With diverse-type electrical heater
  10.491  .With heat exchange
  10.492  ..Roller (e.g., godet)
  10.493  ..Cooking means
  10.51   ..Fluent material conduit
  10.53   .Bonding (e.g., seam welding)
  10.55 R .Electromagnetic wave irradiation (e.g., resonant cavity
            type)
  10.55 A ..Pass thru waveguides
  10.55 B ..Power supply circuitry
  10.55 C ..Interlock circuitry and structure
  10.55 D ..Radiation protection
  10.55 E ..Cookware
  10.55 F ..Field modification and energy distribution
  10.55 M ..Methods
  10.57   .Special application (e.g., heated specific device or
            material)
  10.59   ..Gears
  10.61 R ..Webs, strands or sheets
  10.61 A ...Godets
  10.63   ..Shoes
  10.65   .Fluent material
  10.67   .With article or material support
  10.69   ..Conveyer
  10.71   ...Plural heating zones
  10.73   ..Article or material manipulator (e.g., pressure
             applicator)
  10.75   .Inductive heating systems
  10.77   ..With automatic control
  10.79   .Inductors
  10.81   .Electrodes
  50      METAL HEATING (E.G., RESISTANCE HEATING)
  51      .Chain
  52      ..Methods
  53      .Rail bond
  54      ..Arc weld
  55      ..Resistance weld methods
  56      .Wire, rod or bar bonding
  56.1    ..Of wire leads
  56.21   ...By microbonding
  56.22   ...Methods
  57      ..Butt bonding (e.g., welding)
  58      ..Methods
  59.1    .Of cylinders (e.g., pipes and tubes)
  60 R    ..Electric arc
  60.2    ...Tube sheet weldingg
  61      ...Methods
  60 A    ...Rotatable tube welders
  61.1    ..Having internal support means
  61.11   ...With forming means
  61.12   ...With cleaning means
  61.13   ...With edge guidance means
  61.2    ..Utilizing high frequency resistance heating
  61.3    ..With edge guidance means
  61.4    ..With adjustable electrode means
  61.5    ..With condition responsive control of the welding process
  61.6    ..Using three or more electrodes
  61.7    ..With cooling means
  62      ..Helical seam
  63      ..Rotary transformer part
  64      ..Container (e.g., cans)
  65      ..Nonrotary electrode (e.g., oscillating)
  66      ..Inside electrode
  67      ..Resistance heating methods
  68      .Cutting or disintegrating (e.g., machining engraving)
  69.1    ..Electric arc
  69.11   ..Electric spark machining
  69.12   ...Wire cutting
  69.13   ...Circuits
  69.14   ...Dielectric composition and purification
  69.15   ...Electrodes
  69.16   ...Gap spacing control
  69.17   ...Methods
  69.18   ...Pulse
  69.19   ...Safety circuits
  69.2    ...Vibrating electrodes or workpiece
  70      ...Hand-type tools
  71      .Liquid electrode
  72      .Nonatmospheric environment at hot spot (e.g., resistance weld
            under oil, vacuum)
  73      ..Slag (e.g. submerged arc)
  73.1    ...Including electroslag welding
  73.11   ....For coating
  73.2    ...With granular flux supply
  73.21   ....For deposition welding
  74      ..Gas supply (e.g., by ingredient of electrode, by external
             source)
  75      ...Nonconsumable electrode (e.g., atomic hydrogen)
  76.1    .For deposition welding (e.g., coating or building up)
  76.11   ..With cooling means
  76.12   ..Of multiple distinct layers
  76.13   ..By spark discharge
  76.14   ..By electric arc
  76.15   ...With nonconsumable electrode
  76.16   ...Plasma
  76.17   ..By resistance heating
  77      ..Cutting edges of tools
  78.01   .For bonding with pressure (e.g., resistance welding)
  85.1    ..Brazing or soldering
  85.11   ...Utilizing induction heating
  85.12   ...Utilizing radiant energy
  85.13   ....Methods
  85.14   ...With filler metal in circuit
  85.15   ....Methodss
  85.16   ...Electrically heated tool (e.g., electrodes, heaters,
              etc.)
  85.17   ...Furnaces or enclosures
  85.18   ...Wire lead bonders
  85.19   ...Machine for predetermined operation
  85.2    ...Fluxes or solders
  85.21   ...Solder preforms
  85.22   ...Methods
  78.02   ..By solid-state bonding (e.g., diffusion)
  78.11   ..Honeycomb
  78.12   ...Methods
  78.13   ..With additional heating device
  78.14   ..With work cleaning means
  78.15   ..With work cutting means
  78.16   ..With work deforming means (e.g., tube sealing)
  79      ..With conveyer for workpiece
  80      ...Spot bond
  81      ..Roller electrode
  82      ...Roller moves over work
  83      ...Methods
  84      ...Electrode structure
  86.1    ..By spot bonding
  86.21   ...With hand-manipulative portable devices
  86.22   ...With separately applied pressure and heat
  86.23   ...With welding pressure controlled by the work support
  86.24   ...With work orientation means
  86.25   ...With significant electrode support
  86.31   ....Having cooling means
  86.32   ....Having magnetic force actuated electrode
  86.33   ....Having adjustment means
  86.41   .....With condition responsive control means
  86.51   ......Responsive to pressure
  86.61   .......By force balancing
  86.7    .....For predetermined welding operation
  86.8    ....Having interchangeable welding electrodes
  86.9    ...For one-face welding
  87      ...Multiple spot type
  88      ...Electrode positionable along fixed bus bar (e.g., reaction
              bar type)
  89      ...Fluid pressure actuated electrode
  90      ...Plier or tong type
  91.1    ...With condition responsive control of the welding
              process
  91.2    ...Methods
  91.21   ....Of welding through insulation
  91.22   ....With additional heating to same spot
  91.23   ....With work deforming
  92      ....Current limitation (e.g., by interposed insulation)
  93      .....By localized projection
  94      .....By interposed button
  95      ..Percussive
  96      ...Methods
  97      ..Flash
  98      ...Stud
  99      ....Methods
  100     ...Methods
  101     ..Butt
  102     ...Extended seamm
  103     ...One part fed
  104     ...Methods
  105     ....Preparation of edges
  106     ....By use of a bridging member (e.g., splice plate)
  107     ....End or edge to surface
  108     ..Systems of current supply
  109     ...With indicator (e.g., recorder)
  110     ...Controlled in response to current, voltage or temperature
  111     ...Repeat or interrupted current systems (e.g., multiple welds,
              multiple heated weld)
  112     ...Stored energy discharge (e.g., inductive)
  113     ....Condenser discharge
  114     ...With space-discharge tube control (e.g., thyratron,
              ignitron)
  115     ...Synchronous switching on and off
  116     ...With transformer
  117.1   ..Methods
  118     ...Particular material (e.g., dissimilar, aluminum)
  119     ..Electrodes (e.g., structure)
  120     ...With cooling
  121.11  .By Arc
  121.12  ..Using electron beam
  121.13  ...Welding
  121.14  ....Methods
  121.15  ...Deposition (e.g., Sputtering)
  121.16  ...Melting
  121.17  ....Methods
  121.18  ...Cutting
  121.19  ....Etching or Trimming
  121.2   .....Methods
  121.21  ...Chamber
  121.22  ....Sealing
  121.23  ....Monitoring
  121.24  ...Nonvacuum environment
  121.25  ...Shaping
  121.26  ....With focusing
  121.27  ....With electrode or gun structure
  121.28  ...Position control
  121.29  ....Swept or scanned
  121.3   ....Condition responsive
  121.31  ...Workpiece position control
  121.32  ....Condition responsive
  121.33  ...With fluid supply (e.g., shielding gas or coolant)
  121.34  ...Power Supply
  121.35  ...Methods
  121.36  ..Using plasma
  121.37  ...Melting
  121.38  ....Methods
  121.39  ...Cutting
  121.4   ....Etching
  121.41  .....Methods
  121.42  .....Rate control
  121.43  .....With chamber
  121.44  ....Methods
  121.45  ...Welding
  121.46  ....Methods
  121.47  ...Spray coating
  121.48  ...Plasma torch structuree
  121.49  ....Cooling system
  121.5   ....Nozzle system
  121.51  ....Gas supply system
  121.52  ....Electrode structure
  121.53  ....Consumable electrode
  121.54  ...Control systems
  121.55  ....Gas supply
  121.56  ....Arc positioning
  121.57  ....Arc ignition
  121.58  ...With work holder
  121.59  ...Methods
  121.6   ..Using laser
  121.61  ...Beam energy control
  121.62  ....Condition responsive
  121.63  ...Welding
  121.64  ....Methods
  121.65  ...Melting
  121.66  ....Methods
  121.67  ...Cutting
  121.68  ....Etching or trimming
  121.69  .....Methods
  121.7   ....Hole punching
  121.71  .....Methods
  121.72  ....Methods
  121.73  ...Shaping
  121.74  ....With mirror
  121.75  ....With lens
  121.76  ...Multiple beams
  121.77  ....With sing source
  121.78  ...Beam position control
  121.79  ....Path adjustment
  121.8   ....Swept or scanned
  121.81  ....Condition responsive
  121.82  ...Workpiece position control
  121.83  ...With monitoring
  121.84  ...With fluid supply
  121.85  ...Method
  121.86  ...Chamber
  122     ..Control of arc direction
  123     ...Magnetic
  124.01  ..With ignition by retraction
  124.02  ..With gap control
  124.03  ...By arc voltage
  124.1   ..With automatic positioning of arc
  124.21  ...Including work cutting
  124.22  ...In response to work shape
  124.31  ....Having carriage supported by work
  124.32  ....Having variable welding head travel rate (e.g., gravity
               feed)
  124.33  ....Having electrode angle control
  124.34  ....By using probe means
  124.4   ...In response to work position
  124.5   ...In response to the transfer rate of the weld metal
  125.1   ..With predetermined welding operation
  125.11  ...For closed path welding (e.g., circumferential welding)
  125.12  ...For oscillating electrode welding
  126     ...Vertical work (e.g., horizontal seam in vertical wall)
  127     ..Spot arc bonding (e.g., arc riveting))
  128     ..With working of bonding metal (e.g., by peening)
  129     ..Brazzing or soldering
  130.01  ..Including circuits for monitoring arc parameters
  130.1   ..Including arc-power supplies
  130.21  ...With automatic output control (e.g., shortcircuit,
              infrared)
  130.31  ....Responsive to arc voltage only
  130.32  ....Responsive to arc current only
  130.33  ....Responsive to both arc voltage and arc current
  130.4   ...With arc ignition and stabilization arrangements
  130.5   ...With predetermined time variation of arc voltage or
              current (e.g., programmed)
  130.51  ....Pulsating or periodic output
  132     ...Remote control
  133     ...With generator (e.g., gas engine driven)
  134     ....Electric motor driven
  136     ..Welding
  137 R   ...Process
  137 PS  ....Power supply
  137 WM  ....Weld metal composition
  137.2   ..With consumable electrode device
  137.31  ...Gun
  137.41  ....Having fume extractor
  137.42  ....Having gas flow limiting shape (e.g., gas diffuser)
  137.43  ....Having spatter shield
  137.44  ....Having integral electrode guide
  137.51  .....With flexibility
  137.52  .....With wear resistant liner
  137.61  ....Having filler electrical contact structure
  137.62  ....Having cooling means
  137.63  ....Having supply connection means (e.g., quick
               disconnect)
  137.7   ...Rate control
  137.71  ....Circuits
  137.8   ...Including filler wire deforming
  137.9   ...Supply cables (e.g., for current, shielding gas,
              coolant)
  138     ..Electrode holder (e.g., spring biased tong)
  139     ...Plural adjustable electrodes (e.g., hand torch)
  140     ...Spring jaw (e.g., sprung by electrode)
  141     ....With separate actuator
  142     ...Plunger jaw (e.g., screw actuated)
  143     ....Spring biased
  144     ...Positive grip
  145.1   .Weld rod structure
  145.21  ..Nonconsumable
  145.22  ..Flux cored
  145.23  ..Flux coated
  145.31  ...Partially
  145.32  ...With wire wrap
  145.41  ..Nonmetal cover
  146.1   .Weld rod composition
  146.21  ..Nonconsumable
  146.22  ..Nonferrous
  146.23  ..Containing nickel, chromium, and iron
  146.24  ..Metal deoxidizer or denitrogenizer
  146.3   ...Particulate
  146.31  ..Particulatee
  146.32  ...Alloying
  146.41  ....Nickel or chromium
  146.51  ...Containing carbide
  146.52  ...Shielding
  147     ..With eye shield
  148     .Bonding
  149     .With forging or shaping (e.g., of powder)
  150 R   ..Upsetting
  151     ...Anvil electrode
  152     ...Simultaneous with heating
  150 V   ...Riveting
  153     ..Bending or twisting
  154     ..Subsequent to heating
  155     .Endless strip
  156     .Rods and bars
  157     .Rivets
  158     .Work holders
  159     ..Rotating supports
  160     ..Mandrels (e.g., anvil)
  161     ..Clamp
  162     .Methods
  200     HEATING DEVICES
  201     .Combined with diverse-type art device
  202     ..Vehicle or vehicle component
  203     ...Windshield or window
  204     ...Steering device
  205     ...Motor or engine
  206     ....Manifold
  207     ....Carburetor
  208     ....Radiator or cooling system
  209     ..Electrical devices
  210     ...Crystal or other vibratory device
  211     ..Apparel
  212     ..Bed covering (e.g., blanket)
  213     ..Static structure (e.g., building pavement, etc.)
  214     ..Vending, dispensing or display device
  215     ..Shoe machinery
  216     ..Printing or reproduction device
  217     ..Chair, bed or other body-supporting means
  218     ..Table or cabinet
  219     ..Mirror
  220     ..Light means
  221     .Tool or instrument
  222     ..Hair heaters
  223     ...Singeing apparatus
  224     ...Electrolytic
  225     ...With heated clamp means (e.g., hand-held)
  226     ...With heated casing
  227     ..Hand-manipulative
  228     ...With heat distribution means (i.e., heat applied to extended
              area)
  229     ...With heated tip or other heat concentration means (i.e., heat
              applied to localized area)
  230     ....With tip cooling, clamping or lighting means
  231     ....Convertible
  232     ....Internal arc-type heating unit
  233     ....Tip in electrical circuit
  234     .....Work in circuitt
  235     .....With transformer secondary
  236     ....Coil or loop-type heating element
  237     .....Integral with tip
  238     .....Detachable tip
  239     ......Threaded
  240     ...With power supply, voltage or current control, or connection
              and/or disconnection means
  241     ....With thermal control means
  242     ...Supports
  243     .Combined with pressure application means
  244     ..Rotatable
  245     ..Sole plate type pressure application means (e.g., flatiron)
  246     ...Combined with stand
  247     ....With complementary electrical connector means to external
               circuit terminating in stand
  248     ...With condition-responsive indicator
  249     ...Convertible
  250     ...With power supply, voltage or current-control means
  251     ....Thermally responsive
  252     .....Adjustable
  253     .....Comprising fusible metal, expansible liquid or bar means
  254     ...With heating unit structure
  255     ....Plural heating units
  256     ...With electrical circuit completion or terminal structure
  257     ....Automatically operated
  258     ...With heat storage, exchange or reflector means
  259     ...Supporting devices
  260     .Resistive element igniter type
  261     ..With blower, suction or other ignition facilitating means
  262     ..With current control or external circuit connection or
             disconnection means
  263     ...Automatic
  264     ....Thermally responsive
  265     .....Bimetallic or other flexible means
  266     ...Resilient means
  267     ..With housing casing or support means for igniter unit
  268     ..With source of power or current
  269     ..With indicating means
  270     ..With igniter unit structure
  383     .Electric arc type devices
  384     ..With perforating or disintegrating means
  385     .Combined with container, enclosure or support for material to
            be heated
  386     ..Portable or mobile
  387     ...Food conveying type (e.g., lunch box)
  388     ..With means whereby material to be heated may be passed
             continuously through heated area (e.g., conveyor)
  389     ..Revolving enclosure
  390     ..Muffle-type enclosure
  391     ..Oven type
  392     ...Combined with additional material support
  393     ...Oven performs plural diverse functions
  394     ...With plural ovens
  395     ...With plurality of separate heating units
  396     ....Of diverse construction or functioning in diverse manners
  397     ....Of different resistive values
  398     ....Selectively energized
  399     ...With heat energy transfer, distribution or accumulator meanss
  400     ....By convection
  401     ...With steam generating means
  402     ...With casing or support for heating unit or units
  403     ....Retractable or detachable (from heated enclosure)
  404     ....Hinged or adjustable (within the heated enclosure)
  405     ....Including heat energy reflecting or directing means
  406     ...With resistance heating means surrounding heating area
  407     ....Embedded within or between walls of container
  408     ...With resistance heating unit or units fixed enclosed by or
              located within heating area
  409     ...With heating unit structure or composition
  410     ....With plural section heating element
  411     ....With infrared generating means
  412     ...With current or voltage control or regulating means
  413     ....Automatically responsive to condition of heating area
  414     ...With switch or other external circuit completing means
  415     ..Deep well
  416     ...Convertible
  417     ...With plurality of separate heating units
  418     ...With adjustable position heating unit or units
  419     ...With current control or external circuit opening or closing
              means
  420     ..Crucible or furnace type (i.e., adapted to hold meltable
             material)
  421     ...Melting pot
  422     ...With plural separate heating units
  423     ...With protection means for heating unit or switch
  424     ...With resistance heating element surrounding or embedded
              within walls of container
  425     ...With current or voltage control means
  426     ...With significant heating unit structure or composition
  427     ....Container comprises resistance heating element
  428     ..Plural containers
  429     ..With vessel and stand
  430     ...With heat storage or transfer means
  431     ...With pressure generating or maintaining means
  432     ...Vessel separable from stand
  433     ...With heating unit unitary with or attached to the stand
  434     ....Adjustable relative to vessel or stand
  435     ...With external electrical circuit connection or disconnection
              means
  436     ...With heating unit attaching or support means
  437     ....Immersible
  438     ..With vessel
  439     ...With heat storage or transfer means
  440     ...With pressure generating or maintaining means (e.g., pressure
              cooker)
  441     ...With temperature or current control means
  442     ....Adjustable
  443     ..Exposed horizontal planar heating surface (e.g., hot plate
             type)
  444     ...With stowaway or concealing means
  445     ...With plural individual heating units or elements
  446     ....Selectively activated
  447     ....Detachable or interchangeable
  448     ...With electrical voltage or current regulation or control
              means
  449     ....Thermally responsivee
  450     .....In direct contact with material to be heated
  451     ...With external circuit connection or disconnection means
  452     ....Automatically operated
  453     ....With circuit condition indicating means
  454     ...Convertible (e.g., acts as heating unit for oven)
  455     ...Self-supported heating unit adapted to furnish material
              support
  456     ....Adjustable to shape of material to be heated
  457     ...Heating unit embedded within or unitary with material
              support
  458     ...With housing, casing or support means for heating unit
  459     ....Combined with material support surface
  460     ....With thermal insulation or ventilating means
  461     ....With heat energy reflecting or deflecting means
  462     ....With heat energy storage, transfer or exchange means
  463     ....With heating unit attachment or securing means
  464     ...Planar heating surface or particular material or structure
  465     ...With heating unit structure
  466     ....Comprising plural resistive elements
  467     ....With element-attaching or supporting means
  468     ....With resistance element structure or material
  469     ..Cylindrical or roller-type support for material to be heated
  470     ...With plural heating units
  471     ...With external electrical circuit completion means
  472     .Plural functions simultaneously or convertible
  473     ..To nonheating device
  474     ..To diverse-type electric heating device
  475     .With plural heat utilization means (single heater)
  476     .Plural separate heating devices
  477     ..With common power supply or current control means
  478     ..With unitary housing, support or casing means
  479     ..Diverse type (each electric)
  480     ..Selectively activated
  481     .With protective means for heater
  482     .With power supply and voltage or current regulation or current
            control means
  483     ..Controlling or regulating plural separate distinct heating
             resistance elements(i.e., one control system for all
             elements)
  484     ...Of diverse resistance characteristics or value
  485     ...With total current or power limiting means
  486     ...Selectively, sequentially or alternately
  487     ....With indicator means
  488     ..With voltage limitation, conversion or adapting means
  489     ..Combined manual and automatic regulating or control means
  490     ..Automatic regulating or control means
  491     ...Combined (e.g., electro-mechanical and thermal)
  492     ...Comprising timing or cycling means
  493     ....Electro-mechanical
  494     ...Thermally responsive
  495     ....Thermomagnetic
  496     ...Pressure responsive
  497     ...Comprising voltage and/or current measuring and comparing or
              combining means
  498     ....Including follow-up servo means
  499     ....Including bridge means
  500     ...Including electron or glow-discharge tube means
  501     ...Including semiconductor means (e.g., transistor))
  502     ...Utilizing light-sensitive and/or responsive means
  503     ...Inductive reactor means (e.g., auto transformer)
  504     ...Comprising variable resistance means
  505     ....Comprising nonlinear or negative temperature coefficient
               resistance means
  506     ...With signal or indicating means
  507     .With current connection and/or disconnection means (e.g.,
            switch)
  508     ..Plural means intermittently or selectively operated
  509     ..Automatically operated
  510     ...Thermally responsive
  511     ....With auxiliary heating means for thermal switch means
  512     ....Comprising linearly expansible metal
  513     ....Comprising expansible fluid (e.g., alcohol or mercury)
  514     ....With solenoid means
  515     ....Adjustable means
  516     ....Insertable into or in direct contact with heated material
  517     ....Fusible link
  518     ...Responsive to weight, position or presence of body to be
              heated
  519     ...Including electromagnetic relay means
  520     .With heater-unit housing, casing or support means (e.g., frame
            and single sheet)
  521     ..Including or comprising holding or support means for material
             to be heated
  522     ..Housing, casing or support performs plural diverse functions
             (e.g., window)
  523     ..Housing, casing or support insertable into material or space
             to be heated (e.g., immersion type)
  524     ..Comprising hinged or separable compartment (e.g., waffle iron
             type)
  525     ...With plurality of or sectional heating means
  526     ..With means for attaching housing or casing to an external
             device (e.g., magnetic or vacuum)
  527     ...Body-supported (e.g., human body)
  528     ..Flexible or resilient (e.g., warming pad)
  529     ...Cloth or other fabric
  530     ..With heat storage or transfer means (vanes)
  531     ..With thermal insulation or cooling means
  532     ..With open frame or grid-type support
  533     ..Portable (e.g., with handle)
  534     ..Rigid tubular housing, casing or support (e.g., flattened
             tube)
  535     ..Specially formed or adapted to fit material to be heated
             (e.g., a pipe)
  536     ..With heating unit mounting or attaching means
  537     ...Plural units combined with single casing housing or support
  538     .With heating unit structure
  539     ..Comprising plural separate and distinct resistive elements
  540     ..With heat storage or transfer means (e.g., fins or plate)
  541     ..With terminal or connector means (e.g., to external circuit
             means)
  542     ..With resistive-element attaching, securing or electrical
             insulation means
  543     ...Comprising coating printed or deposited on core sheath or
              support means
  544     ...Element embedded within or completely surrounded by core,
              sheath or support meanss
  545     ...Resistive element interwoven with fabric support
  546     ..Core, sheath or support means for heating element
  547     ...Comprising material to be heated
  548     ...Of particular construction or material
  549     ....Flexible
  550     ....Sectional or interconnectable insulator means
  551     ....Gasket or wafer-type insulator means
  552     ..Heating element structure
  553     ...Of particular construction and/or material (e.g., infrared
              generator)