US Patent Class 432
HEATING



Electronic
File
Wrappers

Electronic
Patent
Documents

Paper
Patent
Documents

Current as of: June, 1999
Click for Main Headings
Click DF for Definitions
Click for All Classes

Internet Version by PATENTEC © 1999       Terms of Use



Products
and
Services

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