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Classification Resources
 
Class   432HEATING
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[List of Pre Grant Publications for class 432 subclass 1][List of Patents for class 432 subclass 1]1 PROCESSES OF HEATING OR HEATER OPERATION
 [List of Pre Grant Publications for class 432 subclass 2][List of Patents for class 432 subclass 2]2 Subclass 2 indent level is 1 Including apparatus purging, cleaning or accretion preventing
 [List of Pre Grant Publications for class 432 subclass 3][List of Patents for class 432 subclass 3]3 Subclass 3 indent level is 1 Including repairing, converting or assembling apparatus
 [List of Pre Grant Publications for class 432 subclass 4][List of Patents for class 432 subclass 4]4 Subclass 4 indent level is 1 Including apparatus heat-up, cool-down or protection
[List of Pre Grant Publications for class 432 subclass 5][List of Patents for class 432 subclass 5]5 Subclass 5 indent level is 1 Including preparing or arranging work for heating
 [List of Pre Grant Publications for class 432 subclass 8][List of Patents for class 432 subclass 8]8 Subclass 8 indent level is 1 Continous strip, strand or web passed longitudinally through heating zone
[List of Pre Grant Publications for class 432 subclass 9][List of Patents for class 432 subclass 9]9 Subclass 9 indent level is 1 Treating an article, container, batch or body as a unit
 [List of Pre Grant Publications for class 432 subclass 13][List of Patents for class 432 subclass 13]13 Subclass 13 indent level is 1 Including melting, vaporizing, sintering, expanding comminuting, or classifying work material
[List of Pre Grant Publications for class 432 subclass 14][List of Patents for class 432 subclass 14]14 Subclass 14 indent level is 1 Including passing, treating or conveying gas into or through particulate work
 [List of Pre Grant Publications for class 432 subclass 18][List of Patents for class 432 subclass 18]18 Subclass 18 indent level is 1 Subjecting work to diverse treatments or graduated temperatures
[List of Pre Grant Publications for class 432 subclass 19][List of Patents for class 432 subclass 19]19 Subclass 19 indent level is 1 Controlling flame position or work atmosphere
 [List of Pre Grant Publications for class 432 subclass 27][List of Patents for class 432 subclass 27]27 Subclass 27 indent level is 1 Including the flowing or circulating of particulate heat carrier
 [List of Pre Grant Publications for class 432 subclass 28][List of Patents for class 432 subclass 28]28 Subclass 28 indent level is 1 Of operating a furnace utilizing a heat storage mass
[List of Pre Grant Publications for class 432 subclass 29][List of Patents for class 432 subclass 29]29 Subclass 29 indent level is 1 Of heating a fluid
 [List of Pre Grant Publications for class 432 subclass 31][List of Patents for class 432 subclass 31]31 Subclass 31 indent level is 1 Heating of or by wall or radiant surface
 [List of Pre Grant Publications for class 432 subclass 32][List of Patents for class 432 subclass 32]32 WITH INDICATOR, ILLUMINATOR OR INSPECTION MEANS
 [List of Pre Grant Publications for class 432 subclass 33][List of Patents for class 432 subclass 33]33 ARTICLE OR TEMPLATE FOLLOWER POSITIONS HEATING ELEMENT RELATIVE TO ARTICLE
 [List of Pre Grant Publications for class 432 subclass 34][List of Patents for class 432 subclass 34]34 HAVING OPERATING OR CONTROLLING DEVICE RESPONDING TO PRESENCE OF DISCRETE WORK UNIT OR REMOVABLE UNIT HOLDER
 [List of Pre Grant Publications for class 432 subclass 35][List of Patents for class 432 subclass 35]35 FRANGIBLE OR FUSIBLE SAFETY RELIEF OR SHUTDOWN MEANS
[List of Pre Grant Publications for class 432 subclass 36][List of Patents for class 432 subclass 36]36 HAVING CONDITION RESPONSIVE CONTROL
 [List of Pre Grant Publications for class 432 subclass 50][List of Patents for class 432 subclass 50]50 WITH PROTECTOR, CLEANER OR SUPPORT FOR CONDITION SENSOR
[List of Pre Grant Publications for class 432 subclass 51][List of Patents for class 432 subclass 51]51 HAVING TIMING, PROGRAMMING OR CYCLING CONTROL MEANS
 [List of Pre Grant Publications for class 432 subclass 54][List of Patents for class 432 subclass 54]54 WITH INTERLOCKED, INTERCONNECTED OR MULTIWAY CONTROLLER ALTERNATING FLOW OF HEATED AND HEATING FLUID
[List of Pre Grant Publications for class 432 subclass 55][List of Patents for class 432 subclass 55]55 WITH CONCURRENT CONTROL OR INTER-CONTROL OF DIVERSE OPERABLE ELEMENTS
 [List of Pre Grant Publications for class 432 subclass 58][List of Patents for class 432 subclass 58]58 WITH HEATING GAS CONVEYING, AGITATING, SCATTERING OR DISINTEGRATION OF WORK (E.G., FLUIDIZED BED, ETC.)
[List of Pre Grant Publications for class 432 subclass 59][List of Patents for class 432 subclass 59]59 ADVANCING STRUCTURE FLEXING, LOOPING OR COILING SHEET, WEB OR STRAND
 [List of Pre Grant Publications for class 432 subclass 61][List of Patents for class 432 subclass 61]61 WITH LUMP BREAKER OR CLASSIFIER FOR PARTICULATE WORK MATERIAL
[List of Pre Grant Publications for class 432 subclass 62][List of Patents for class 432 subclass 62]62 GEOGRAPHIC OR STRUCTURAL INSTALLATION
 [List of Pre Grant Publications for class 432 subclass 64][List of Patents for class 432 subclass 64]64 HAVING FLUID CURTAIN AT CHAMBER PORT OR WORK PATH
 [List of Pre Grant Publications for class 432 subclass 65][List of Patents for class 432 subclass 65]65 WITH HEAT SHIELD, OR ESCAPING GAS COLLECTOR AT FURNACE CHAMBER ACCESS AREA
 [List of Pre Grant Publications for class 432 subclass 66][List of Patents for class 432 subclass 66]66 WITH CONDENSER OR ABSORBER FOR WORK CHAMBER VAPOR
[List of Pre Grant Publications for class 432 subclass 67][List of Patents for class 432 subclass 67]67 WITH MEANS SEPARATING SOLID PARTICLES OR SLAG FROM WORK CHAMBER GAS
 [List of Pre Grant Publications for class 432 subclass 72][List of Patents for class 432 subclass 72]72 WITH MEANS DILUTING, PURIFYING OR BURNING EXHAUST GASES
 [List of Pre Grant Publications for class 432 subclass 73][List of Patents for class 432 subclass 73]73 COMBUSTION PRODUCTS, FLUE OR GENERATOR AND WORK CHAMBER MOUNTED FOR RELATIVE MOVEMENT FOR ACCESS
 [List of Pre Grant Publications for class 432 subclass 74][List of Patents for class 432 subclass 74]74 WITH DRIP, LEAKAGE, BREAKAGE OR SOIL COLLECTING STRUCTURE
 [List of Pre Grant Publications for class 432 subclass 75][List of Patents for class 432 subclass 75]75 WITH CLEANING MEANS FOR APPARATUS
 [List of Pre Grant Publications for class 432 subclass 76][List of Patents for class 432 subclass 76]76 WITH APPARATUS REPAIR OR ASSEMBLY MEANS
[List of Pre Grant Publications for class 432 subclass 77][List of Patents for class 432 subclass 77]77 WITH WORK COOLING STRUCTURE
 [List of Pre Grant Publications for class 432 subclass 86][List of Patents for class 432 subclass 86]86 WITH MEANS RECEIVING WORK FROM WORK HEATING ZONE DISCHARGE MEANS
 [List of Pre Grant Publications for class 432 subclass 87][List of Patents for class 432 subclass 87]87 WITH MEANS SUPPLYING WORK TO WORK FEEDER
 [List of Pre Grant Publications for class 432 subclass 88][List of Patents for class 432 subclass 88]88 WITH WHEEL, HANDLE, OR SKID-TYPE SUPPORT FOR HEATER ASSEMBLY
 [List of Pre Grant Publications for class 432 subclass 89][List of Patents for class 432 subclass 89]89 CONVERTIBLE
[List of Pre Grant Publications for class 432 subclass 90][List of Patents for class 432 subclass 90]90 BOILER AND WORK HEATING FURNACE, POT OR OVEN
 [List of Pre Grant Publications for class 432 subclass 92][List of Patents for class 432 subclass 92]92 COMBINED
 [List of Pre Grant Publications for class 432 subclass 93][List of Patents for class 432 subclass 93]93 HAVING WORK HEATING CHAMBER AND OPEN ACCESS WORK SUPPORTING AND HEATING AND HEATING STRUCTURE OUTSIDE OF CHAMBER
 [List of Pre Grant Publications for class 432 subclass 94][List of Patents for class 432 subclass 94]94 DISPARATE HEAT SOURCES OR FUELS
[List of Pre Grant Publications for class 432 subclass 95][List of Patents for class 432 subclass 95]95 SHAFT TYPE
[List of Pre Grant Publications for class 432 subclass 103][List of Patents for class 432 subclass 103]103 TUMBLER-TYPE ROTARY - DRUM FURNACE
[List of Pre Grant Publications for class 432 subclass 120][List of Patents for class 432 subclass 120]120 WORK CHAMBER HAVING HEATING MEANS
[List of Pre Grant Publications for class 432 subclass 121][List of Patents for class 432 subclass 121]121 Subclass 121 indent level is 1 Having means by which work is progressed or moved mechanically
[List of Pre Grant Publications for class 432 subclass 122][List of Patents for class 432 subclass 122]122 Subclass 122 indent level is 2 Having manipulating means arranging, orienting, segregating or topically heating individual unit
[List of Pre Grant Publications for class 432 subclass 128][List of Patents for class 432 subclass 128]128 Subclass 128 indent level is 2 Plural distinct chambers
 [List of Pre Grant Publications for class 432 subclass 134][List of Patents for class 432 subclass 134]134 Subclass 134 indent level is 2 Vibrating or jarring-type work advancer
 [List of Pre Grant Publications for class 432 subclass 135][List of Patents for class 432 subclass 135]135 Subclass 135 indent level is 2 Traveling heat emitter carries or stirs work
[List of Pre Grant Publications for class 432 subclass 136][List of Patents for class 432 subclass 136]136 Subclass 136 indent level is 2 Combustion products generated in or fed to chamber
 [List of Pre Grant Publications for class 432 subclass 151][List of Patents for class 432 subclass 151]151 Subclass 151 indent level is 2 Stirrer in externally heated tank
 [List of Pre Grant Publications for class 432 subclass 152][List of Patents for class 432 subclass 152]152 Subclass 152 indent level is 2 Having distinct atmosphere supply, removal or recirculation structure
[List of Pre Grant Publications for class 432 subclass 153][List of Patents for class 432 subclass 153]153 Subclass 153 indent level is 2 Work or work carrier slides on heated chamber wall or floor
 [List of Pre Grant Publications for class 432 subclass 155][List of Patents for class 432 subclass 155]155 Subclass 155 indent level is 2 Chamber heated by multiple combustion products flues
[List of Pre Grant Publications for class 432 subclass 156][List of Patents for class 432 subclass 156]156 Subclass 156 indent level is 1 Crucible or pot heating furnace
[List of Pre Grant Publications for class 432 subclass 159][List of Patents for class 432 subclass 159]159 Subclass 159 indent level is 1 Combustion products heat work by contact
 [List of Pre Grant Publications for class 432 subclass 160][List of Patents for class 432 subclass 160]160 Subclass 160 indent level is 2 Furnace or work holder of furnace mounted for tilting discharge
 [List of Pre Grant Publications for class 432 subclass 161][List of Patents for class 432 subclass 161]161 Subclass 161 indent level is 2 Having separator of flow director for melted work
 [List of Pre Grant Publications for class 432 subclass 162][List of Patents for class 432 subclass 162]162 Subclass 162 indent level is 2 Having shelf, rack, tray or chamber on guide or pivot
[List of Pre Grant Publications for class 432 subclass 163][List of Patents for class 432 subclass 163]163 Subclass 163 indent level is 2 Plural structurally related work chambers
 [List of Pre Grant Publications for class 432 subclass 173][List of Patents for class 432 subclass 173]173 Subclass 173 indent level is 2 Having protective cooling means for combustion material feed structure
 [List of Pre Grant Publications for class 432 subclass 174][List of Patents for class 432 subclass 174]174 Subclass 174 indent level is 2 Including noncommunicating combustion products flue
 [List of Pre Grant Publications for class 432 subclass 175][List of Patents for class 432 subclass 175]175 Subclass 175 indent level is 2 Radiant-type burner in or on wall (e.g., surface combustion, etc.)
 [List of Pre Grant Publications for class 432 subclass 176][List of Patents for class 432 subclass 176]176 Subclass 176 indent level is 2 Having exhaust return passage or recirculating fan or jet
 [List of Pre Grant Publications for class 432 subclass 177][List of Patents for class 432 subclass 177]177 Subclass 177 indent level is 2 Chamber exhaust transfers heat with chamber wall
 [List of Pre Grant Publications for class 432 subclass 178][List of Patents for class 432 subclass 178]178 Subclass 178 indent level is 2 Work chamber or its wall heats chamber feed
[List of Pre Grant Publications for class 432 subclass 179][List of Patents for class 432 subclass 179]179 Subclass 179 indent level is 2 Work chamber exhaust heats chamber feed
 [List of Pre Grant Publications for class 432 subclass 183][List of Patents for class 432 subclass 183]183 Subclass 183 indent level is 2 For annular article (e.g., wheel rim, etc.)
 [List of Pre Grant Publications for class 432 subclass 184][List of Patents for class 432 subclass 184]184 Subclass 184 indent level is 2 Article inserted type
 [List of Pre Grant Publications for class 432 subclass 185][List of Patents for class 432 subclass 185]185 Subclass 185 indent level is 2 Dividing baffle or screen in cabinet forms upper work and lower burner chambers
[List of Pre Grant Publications for class 432 subclass 186][List of Patents for class 432 subclass 186]186 Subclass 186 indent level is 2 Distinct combustion chamber feeds work chamber
 [List of Pre Grant Publications for class 432 subclass 193][List of Patents for class 432 subclass 193]193 Subclass 193 indent level is 2 Spaced exhaust ports from work chamber
 [List of Pre Grant Publications for class 432 subclass 194][List of Patents for class 432 subclass 194]194 Subclass 194 indent level is 2 Baffle, shield, heat absorber, work support or flow directing means in work chamber
 [List of Pre Grant Publications for class 432 subclass 195][List of Patents for class 432 subclass 195]195 Subclass 195 indent level is 2 Hearth-type or tank-type furnace
 [List of Pre Grant Publications for class 432 subclass 196][List of Patents for class 432 subclass 196]196 Subclass 196 indent level is 2 Spaced fuel or air feeds to work chamber
 [List of Pre Grant Publications for class 432 subclass 197][List of Patents for class 432 subclass 197]197 Subclass 197 indent level is 1 Having particulate or liquid heat transfer medium in work chamber
 [List of Pre Grant Publications for class 432 subclass 198][List of Patents for class 432 subclass 198]198 Subclass 198 indent level is 1 Means supplying a protective or treating agent other than or additional to air
 [List of Pre Grant Publications for class 432 subclass 199][List of Patents for class 432 subclass 199]199 Subclass 199 indent level is 1 Having work atmosphere recirculating means
[List of Pre Grant Publications for class 432 subclass 200][List of Patents for class 432 subclass 200]200 Subclass 200 indent level is 1 Work chamber having gaseous material supply or removal structure
 [List of Pre Grant Publications for class 432 subclass 206][List of Patents for class 432 subclass 206]206 Subclass 206 indent level is 1 Interior bell forms muffle
[List of Pre Grant Publications for class 432 subclass 207][List of Patents for class 432 subclass 207]207 Subclass 207 indent level is 1 Plural structurally related work heating chambers
 [List of Pre Grant Publications for class 432 subclass 209][List of Patents for class 432 subclass 209]209 Subclass 209 indent level is 1 Heating tube, element, or flue traverses work space
[List of Pre Grant Publications for class 432 subclass 210][List of Patents for class 432 subclass 210]210 Subclass 210 indent level is 1 Externally heated, liquid holding type of work container
[List of Pre Grant Publications for class 432 subclass 212][List of Patents for class 432 subclass 212]212 Subclass 212 indent level is 1 Tortuous, branched or baffled heating flue means within or along chamber wall
[List of Pre Grant Publications for class 432 subclass 214][List of Patents for class 432 subclass 214]214 HEAT GENERATING MEANS HEATS HEAT STORAGE MASS OF SOLID MATERIAL
[List of Pre Grant Publications for class 432 subclass 219][List of Patents for class 432 subclass 219]219 HEAT GENERATOR HEATS GAS OR LIQUID MATERIAL IN A FLOW STRUCTURE
 [List of Pre Grant Publications for class 432 subclass 224][List of Patents for class 432 subclass 224]224 INSERTED EMITTER TYPE OF HOLLOW ARTICLE INTERIOR HEATER
 [List of Pre Grant Publications for class 432 subclass 225][List of Patents for class 432 subclass 225]225 HEAT APPLICATOR HAVING STRUCTURE FOR MOUNTING IT ON OR AROUND OBJECT TO BE HEATED
 [List of Pre Grant Publications for class 432 subclass 226][List of Patents for class 432 subclass 226]226 HAVING MASK, BAFFLE OR CONDUCTOR CONCENTRATING HEAT ON OR PROTECTING SECTION OF ARTICLE
[List of Pre Grant Publications for class 432 subclass 227][List of Patents for class 432 subclass 227]227 HEAT GENERATOR WITH AN ASSOCIATED WORK SUPPORT OR HEAT DELIVERY STRUCTURE
[List of Pre Grant Publications for class 432 subclass 233][List of Patents for class 432 subclass 233]233 HEATING APPARATUS ELEMENT HAVING PROTECTIVE COOLING STRUCTURE
[List of Pre Grant Publications for class 432 subclass 239][List of Patents for class 432 subclass 239]239 WORK FEEDING, AGITATING, DISCHARGING OR CONVEYING SUBCOMBINATION
[List of Pre Grant Publications for class 432 subclass 247][List of Patents for class 432 subclass 247]247 HEATING OR HEAT RETAINING WORK CHAMBER STRUCTURE
[List of Pre Grant Publications for class 432 subclass 253][List of Patents for class 432 subclass 253]253 ACCESSORY MEANS FOR HOLDING, SHIELDING OR SUPPORTING WORK WITHIN FURNACE
 [List of Pre Grant Publications for class 432 subclass 266][List of Patents for class 432 subclass 266]266 MISCELLANEOUS
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 432 subclass 500][List of Patents for class 432 subclass 500]500 TOBACCO BARNS
 
FOREIGN ART COLLECTIONS
 
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