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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 432 | HEATING |
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1 | PROCESSES OF HEATING OR HEATER OPERATION |
2 | Including apparatus purging, cleaning or accretion preventing |
3 | Including repairing, converting or assembling apparatus |
4 | Including apparatus heat-up, cool-down or protection |
5 | Including preparing or arranging work for heating |
8 | Continous strip, strand or web passed longitudinally through heating zone |
9 | Treating an article, container, batch or body as a unit |
10 | Localized treating or shielding of work area |
11 | Moving unit through or within treating zone during treating |
12 | Modulating, varying or augmenting heat supply during heat-up period |
13 | Including melting, vaporizing, sintering, expanding comminuting, or classifying work material |
14 | Including passing, treating or conveying gas into or through particulate work |
15 | Including maintenance of fluidized bed |
16 | Including a dust control or particle separation step |
17 | Including modulation of flow rate of gas or treated material |
18 | Subjecting work to diverse treatments or graduated temperatures |
19 | Controlling flame position or work atmosphere |
20 | Providing flame or high luminosity |
21 | Including recycling work atmosphere |
22 | Establishing strata, layer or curtain |
23 | Establishing or maintaining composition of atmosphere bathing work |
24 | Modulating or stabilizing pressure or temperature |
25 | Providing pulsed or periodically reversed atmosphere |
26 | By mode of admission of treating or protecting fluid |
27 | Including the flowing or circulating of particulate heat carrier |
28 | Of operating a furnace utilizing a heat storage mass |
29 | Of heating a fluid |
31 | Heating of or by wall or radiant surface |
32 | WITH INDICATOR, ILLUMINATOR OR INSPECTION MEANS |
33 | ARTICLE OR TEMPLATE FOLLOWER POSITIONS HEATING ELEMENT RELATIVE TO ARTICLE |
34 | HAVING OPERATING OR CONTROLLING DEVICE RESPONDING TO PRESENCE OF DISCRETE WORK UNIT OR REMOVABLE UNIT HOLDER |
35 | FRANGIBLE OR FUSIBLE SAFETY RELIEF OR SHUTDOWN MEANS |
36 | HAVING CONDITION RESPONSIVE CONTROL |
37 | Analyzer or composition sensor of work, work atmosphere or exhaust gas |
38 | Control of or response to apparatus protecting fluid or means |
39 | Of selection or load balancing of furnace exhaust heated regenerators |
40 | Of hot blast stove (i.e., of Cowper stove) |
41 | Of purger, purge period, scavenger or cleaner |
42 | Of protective work shield, cooler or atmosphere; or of heat applicator position |
43 | Of discharging, or stopping the heating of a unit or batch on sensed completion of heating |
45 | Of or by means sensing or controlling work movement, quantity or position |
46 | Condition responsive shutdown requiring reset |
47 | Of or by pressure of fluid work or work chamber atmosphere |
48 | Of cooling, dilution, withdrawal, bypass or circulation of work chamber atmosphere |
49 | Of or by heat generation or transmission |
50 | WITH PROTECTOR, CLEANER OR SUPPORT FOR CONDITION SENSOR |
51 | HAVING TIMING, PROGRAMMING OR CYCLING CONTROL MEANS |
54 | WITH INTERLOCKED, INTERCONNECTED OR MULTIWAY CONTROLLER ALTERNATING FLOW OF HEATED AND HEATING FLUID |
55 | WITH CONCURRENT CONTROL OR INTER-CONTROL OF DIVERSE OPERABLE ELEMENTS |
56 | Door or baffle movement correlated with work movement or placement |
57 | Heating gas supply, removal or recirculation correlated with work or door movement or placement |
58 | WITH HEATING GAS CONVEYING, AGITATING, SCATTERING OR DISINTEGRATION OF WORK (E.G., FLUIDIZED BED, ETC.) |
59 | ADVANCING STRUCTURE FLEXING, LOOPING OR COILING SHEET, WEB OR STRAND |
61 | WITH LUMP BREAKER OR CLASSIFIER FOR PARTICULATE WORK MATERIAL |
62 | GEOGRAPHIC OR STRUCTURAL INSTALLATION |
64 | HAVING FLUID CURTAIN AT CHAMBER PORT OR WORK PATH |
65 | WITH HEAT SHIELD, OR ESCAPING GAS COLLECTOR AT FURNACE CHAMBER ACCESS AREA |
66 | WITH CONDENSER OR ABSORBER FOR WORK CHAMBER VAPOR |
67 | WITH MEANS SEPARATING SOLID PARTICLES OR SLAG FROM WORK CHAMBER GAS |
68 | Separator discharges gas to work zone |
69 | With means passing separated solid to heating zone |
70 | At regenerator or recuperator (e.g., slag pocket, etc.) |
72 | WITH MEANS DILUTING, PURIFYING OR BURNING EXHAUST GASES |
73 | COMBUSTION PRODUCTS, FLUE OR GENERATOR AND WORK CHAMBER MOUNTED FOR RELATIVE MOVEMENT FOR ACCESS |
74 | WITH DRIP, LEAKAGE, BREAKAGE OR SOIL COLLECTING STRUCTURE |
75 | WITH CLEANING MEANS FOR APPARATUS |
76 | WITH APPARATUS REPAIR OR ASSEMBLY MEANS |
77 | WITH WORK COOLING STRUCTURE |
78 | Combustion feed air cools exiting work by contact |
81 | Work holder having selectively usable heating and cooling structure |
82 | Entering and leaving work exchange heat |
83 | Work heat removed through heat transmitting wall |
85 | Cooling liquid contacts work |
86 | WITH MEANS RECEIVING WORK FROM WORK HEATING ZONE DISCHARGE MEANS |
87 | WITH MEANS SUPPLYING WORK TO WORK FEEDER |
88 | WITH WHEEL, HANDLE, OR SKID-TYPE SUPPORT FOR HEATER ASSEMBLY |
89 | CONVERTIBLE |
90 | BOILER AND WORK HEATING FURNACE, POT OR OVEN |
92 | COMBINED |
93 | HAVING WORK HEATING CHAMBER AND OPEN ACCESS WORK SUPPORTING AND HEATING AND HEATING STRUCTURE OUTSIDE OF CHAMBER |
94 | DISPARATE HEAT SOURCES OR FUELS |
95 | SHAFT TYPE |
96 | Having combustion products generated in or fed to shaft |
97 | Having flow controller restraining solid and passing melt |
98 | Having agitator or movably mounted baffle for shaft or shaft outlet |
99 | Having vertically spaced gas supply ports |
100 | Having distinct fume outlet and work inlet |
101 | Having distinct combustion products generator chamber |
102 | Having heat emitting tube or flue within or traversing shaft chamber |
103 | TUMBLER-TYPE ROTARY - DRUM FURNACE |
104 | Having support for engaging heated surface of domestic stove |
105 | Having combustion products generated in or fed to drum |
106 | Including plural, distinct serially connected work chambers |
107 | And having externally heated drum surface or indirect heating flue |
108 | Work advancing type (e.g., steady flow of work) |
112 | Externally heated drum or associated heating element heats work by conduction or radiation |
113 | And having distinct atmosphere supply or removal structure |
114 | Heat emitter is tube within the drum chamber or the drum wall |
115 | Having flexible, cooled, or air curtain seal between rotary and stationary parts |
116 | Having protective cooling structure |
117 | Having work or work atmosphere feed or discharge structure |
118 | Having structure agitating or controlling the motion of the charge |
119 | Having brick-type lining |
120 | WORK CHAMBER HAVING HEATING MEANS |
121 | Having means by which work is progressed or moved mechanically |
122 | Having manipulating means arranging, orienting, segregating or topically heating individual unit |
123 | Handler outside of chamber supports unit partially within and partially outside of furnace chamber |
124 | Having structure rotating, reorienting, or inverting unit during heating |
125 | Vertical stack or mutually supporting units having thrust means |
126 | Thrust means advances row or stack of units |
128 | Plural distinct chambers |
129 | Work moved to drop between shelf or trough-type chambers |
133 | Having combustion products generated in or fed to work chamber |
134 | Vibrating or jarring-type work advancer |
135 | Traveling heat emitter carries or stirs work |
136 | Combustion products generated in or fed to chamber |
137 | Movable chamber floor section carried by external guide or axle |
139 | Plough, rake, screw, or stirrer means |
141 | Rotatably mounted work carrier (e.g., Ferris wheel type, etc.) |
143 | Having means forming work path from inlet to outlet |
151 | Stirrer in externally heated tank |
152 | Having distinct atmosphere supply, removal or recirculation structure |
153 | Work or work carrier slides on heated chamber wall or floor |
155 | Chamber heated by multiple combustion products flues |
156 | Crucible or pot heating furnace |
159 | Combustion products heat work by contact |
160 | Furnace or work holder of furnace mounted for tilting discharge |
161 | Having separator of flow director for melted work |
162 | Having shelf, rack, tray or chamber on guide or pivot |
163 | Plural structurally related work chambers |
164 | Connected for serial flow of combustion products |
165 | Having serially connected regenerator |
166 | Chambers spatially separated |
167 | Having temporary partition |
168 | Through perforated floor |
169 | Through perforated partition |
170 | Having branch connection to common flue |
171 | Diverse atmospheres (e.g., directly and indirectly heated, etc.) |
172 | Fed with combustion products from a common generator |
173 | Having protective cooling means for combustion material feed structure |
174 | Including noncommunicating combustion products flue |
175 | Radiant-type burner in or on wall (e.g., surface combustion, etc.) |
176 | Having exhaust return passage or recirculating fan or jet |
177 | Chamber exhaust transfers heat with chamber wall |
178 | Work chamber or its wall heats chamber feed |
179 | Work chamber exhaust heats chamber feed |
183 | For annular article (e.g., wheel rim, etc.) |
184 | Article inserted type |
185 | Dividing baffle or screen in cabinet forms upper work and lower burner chambers |
186 | Distinct combustion chamber feeds work chamber |
187 | Having additional feed means diluting combustion products |
188 | Work chamber indirectly heating by common wall or connecting flue |
189 | Having pump or jet means forcing air into combustion chamber |
190 | Distinct vertically spaced combustion products feed openings to work chamber |
191 | Plural distinct combustion chambers feed single work chamber |
192 | Multiple perforate wall, floor or roof for combustion feed or exit |
193 | Spaced exhaust ports from work chamber |
194 | Baffle, shield, heat absorber, work support or flow directing means in work chamber |
195 | Hearth-type or tank-type furnace |
196 | Spaced fuel or air feeds to work chamber |
197 | Having particulate or liquid heat transfer medium in work chamber |
198 | Means supplying a protective or treating agent other than or additional to air |
199 | Having work atmosphere recirculating means |
200 | Work chamber having gaseous material supply or removal structure |
201 | Air flow-through type |
202 | Having means heating work by radiation or conduction |
203 | Pump for atmosphere |
204 | Having a movable drawer or separable tray |
205 | Having pump, jet or valve means establishing chamber pressure distinct from ambient |
206 | Interior bell forms muffle |
207 | Plural structurally related work heating chambers |
209 | Heating tube, element, or flue traverses work space |
210 | Externally heated, liquid holding type of work container |
212 | Tortuous, branched or baffled heating flue means within or along chamber wall |
214 | HEAT GENERATING MEANS HEATS HEAT STORAGE MASS OF SOLID MATERIAL |
215 | Mass is solid fluent heat carrier (e.g., pebbles, etc.) |
216 | Interconnected separately encased masses |
217 | Dividing wall in casing forms combustion and heat storage chambers |
219 | HEAT GENERATOR HEATS GAS OR LIQUID MATERIAL IN A FLOW STRUCTURE |
220 | With pump for the material driven by energy from the heat generator |
221 | With means utilizing the heated material for heating work |
222 | Material heated by mixing with combustion products of generator |
224 | INSERTED EMITTER TYPE OF HOLLOW ARTICLE INTERIOR HEATER |
225 | HEAT APPLICATOR HAVING STRUCTURE FOR MOUNTING IT ON OR AROUND OBJECT TO BE HEATED |
226 | HAVING MASK, BAFFLE OR CONDUCTOR CONCENTRATING HEAT ON OR PROTECTING SECTION OF ARTICLE |
227 | HEAT GENERATOR WITH AN ASSOCIATED WORK SUPPORT OR HEAT DELIVERY STRUCTURE |
228 | Internally heated roll |
229 | Movably mounted heat emitter traverses work during heating |
230 | Means moving or guiding work relative to heat emitter during heating |
231 | Article engaging and retaining support fixes position of article relative to heat emitter |
232 | Horizontal, planar, openwork, work support above burner |
233 | HEATING APPARATUS ELEMENT HAVING PROTECTIVE COOLING STRUCTURE |
234 | Work skid or rail structure |
235 | Conveyor, chute or work agitator element |
237 | Door, cover, door frame or rim of cover |
238 | Wall, floor or roof element |
239 | WORK FEEDING, AGITATING, DISCHARGING OR CONVEYING SUBCOMBINATION |
240 | Having support for engaging surface of domestic stove |
241 | Removable furnace bottom section or kiln cart |
242 | Having closure or seal for work feeder's entrance passage |
243 | Outside conveyor track paralleled by chamber wall slot for conveyor arm |
244 | Seal at chamber wall for conveyor arm or shaft |
245 | Having distinct heat shield, conductor, director or expansion relief structure |
246 | Roll-type conveyor element |
247 | HEATING OR HEAT RETAINING WORK CHAMBER STRUCTURE |
248 | Protected, lined or reinforced melt holding section |
249 | Including baffle wall, work shield, or work support element |
250 | Door, cover or port |
251 | Having expansion relieving or absorbing means |
252 | Masonry with metallic casing or support |
253 | ACCESSORY MEANS FOR HOLDING, SHIELDING OR SUPPORTING WORK WITHIN FURNACE |
254.1 | Fluid tight metallic heat transferring box, shield or hood |
258 | Support structure for heat treating ceramics (e.g., saggars, etc.) |
260 | For annular work (e.g., coil separator, etc.) |
261 | Openwork tray, basket, or grid structure for heat treating metal |
262 | Crucible |
266 | MISCELLANEOUS |
CROSS-REFERENCE ART COLLECTIONS | ||
500 | TOBACCO BARNS |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
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