US Patent Class 110
FURNACES



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Current as of: June, 1999
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Products
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  DF  CLASS NOTES
185  DF  WITH CONTROL MEANS RESPONSIVE TO A SENSED CONDITION
186  DF  .~ Feed control
187  DF  .~.~ Supplemental burner
188  DF  .~.~ Of noncombustible fluid; e.g., air, etc.
189  DF  .~.~.~ Pressure sensor
190  DF  .~.~.~ Temperature sensor
191  DF  WITH PROGRAMMED OR CYCLIC CONTROL MEANS
192  DF  .~ Timer
193  DF  WITH SAFETY MEANS
194  DF  CREMATORY
195  DF  FORGE
196  DF  STRAW BURNER AND FEEDER
197  DF  .~ External structure detachable from firebox
198  DF  LOCOMOTIVE
199  DF  .~ Having noncombustible fluid feed means
200  DF  .~.~ And noncombustible fluid treatment means
201  DF  .~.~.~ Preheater
202  DF  .~.~ Undergrate feed
203  DF  WITH EXHAUST GAS TREATMENT MEANS
204  DF  .~ Recirculation means
205  DF  .~.~ Air supply means
206  DF  .~.~.~ Including pump
207  DF  .~.~.~.~ Eductor
208  DF  .~ Furnace having multiple firebox
209  DF  .~.~ By undergrate means
210  DF  .~ Afterburning means
211  DF  .~.~ Means directing main flame or combustion products for afterburning
212  DF  .~.~ Liquid or gaseous fueled
213  DF  .~.~.~ Swirl inducing
214  DF  .~.~ Including means to add air
215  DF  .~ Means contacting exhaust gas with liquid
216  DF  .~ Means separating particles from exhaust gas
217  DF  .~.~ Outlet screen
218  DF  WITH FUEL TREATMENT MEANS
219  DF  .~ Preliminary refuse treatment means
220  DF  .~.~ Sorter
221  DF  .~.~.~ Dewatering
222  DF  .~.~ Comminutor
223  DF  .~.~ Compactor
224  DF  .~.~ Dryer
225  DF  .~.~.~ Furnace with multiple hearth
226  DF  .~.~.~ Rotary drum type
227  DF  .~.~.~ Having means to effect or facilitate refuse movement
228  DF  .~.~.~.~ Mechanical conveying means
229  DF  .~ Means for liberating gas from solid fuel
230  DF  .~.~ Coking means
231  DF  .~.~.~ Undergrate
232  DF  .~ Means for pulverizing solid fuel
233  DF  COMBINED
234  DF  .~ With boiler
235  DF  REFUSE INCINERATOR
236  DF  .~ Means for cleaning by combustion
237  DF  .~ For explosive or radioactive material
238  DF  .~ For liquid refuse
239  DF  .~ For stump in situ
240  DF  .~ Vehicle mounted
241  DF  .~ Portable
242  DF  .~ Closed vessel
243  DF  .~ Refuse suspended in or supported by a fluid medium
244  DF  .~.~ Suspended in a gaseous medium
245  DF  .~.~.~ Fluidized bed of noncombustible particles
246  DF  .~ Rotary drum
247  DF  .~ Rotary grate movable about a vertical axis
248  DF  .~ Refuse supported above grate
249  DF  .~ Reverberatory type
250  DF  .~ With electric heater
251  DF  .~ Including air supply means extending vertically within refuse
252  DF  .~.~ With supplementary burner
253  DF  .~ With means shielding burner for refuse
254  DF  .~ With air preheater
255  DF  .~ With means for advancing or handling refuse or residue
256  DF  .~.~ Means for feeding through chimney
257  DF  .~.~ Continuous advance
258  DF  .~.~ Refuse agitating
259  DF  .~.~ Residue handling; e.g., ash, etc.
260  DF  INCLUDING FLUID FUEL BURNER
261  DF  .~ Powdered solid fuel
262  DF  .~.~ Alternate fuel
263  DF  UTILIZING POWDERED FUEL
264  DF  .~ Having rotary flow means
265  DF  .~ Having secondary air mixing means
266  DF  .~ With residue handling means (e.g., ash, etc.)
267  DF  INCLUDING MEANS TO FEED SOLID FUEL
268  DF  .~ Movable grate
269  DF  .~.~ Endless chain
270  DF  .~.~.~ Including air supply means
271  DF  .~.~.~.~ And chain seal
272  DF  .~.~.~.~.~ Between runs
273  DF  .~.~.~ Inclined run
274  DF  .~.~.~ Mobile support
275  DF  .~.~ Rotary
276  DF  .~.~.~ About horizontal axis
277  DF  .~.~.~ Conical type
278  DF  .~.~ Oscillatory
279  DF  .~.~.~ Manual actuation means
280  DF  .~.~.~ Multiple retort
281  DF  .~.~ Reciprocatory
282  DF  .~.~.~ Including power feed
283  DF  .~.~.~.~ Underfeed
284  DF  .~.~.~.~.~ Power feed perpendicular to grate
285  DF  .~.~ Raking bar type
286  DF  .~ Power driven
287  DF  .~.~ Having circular grate
288  DF  .~.~.~ And forced air supply
289  DF  .~.~ Pusher ram
290  DF  .~.~.~ Parallel to grate
291  DF  .~.~.~.~ Inclined step grate
292  DF  .~ Separate feed
293  DF  .~ Supply hopper; e.g., magazine, etc.
294  DF  .~.~ Cage grate
295  DF  HAVING MULTIPLE FIREBOX
296  DF  .~ Including fluid supply means
297  DF  INCLUDING NONCOMBUSTIBLE FLUID SUPPLY MEANS
298  DF  .~ Hollow grate
299  DF  .~.~ Having flow controller
300  DF  .~.~.~ For forced air supply
301  DF  .~ Having treatment means
302  DF  .~.~ Preheater
303  DF  .~.~.~ And furnace gas mixer
304  DF  .~.~.~ Remote from combustion chamber
305  DF  .~.~.~ Bridgewall
306  DF  .~.~.~ Water or steam
307  DF  .~.~.~.~ Below grate
308  DF  .~.~.~ Internal to or attachable to wall
309  DF  .~.~ And flow modifying means
310  DF  .~.~.~ Deflector
311  DF  .~.~.~.~ Grate mounted
312  DF  .~.~.~.~.~ Below grate
313  DF  .~.~.~ Feed nozzle
314  DF  .~ Supplying through hollow bridgewall
315  DF  DOWNDRAFT
316  DF  .~ Grateless
317  DF  INCLUDING FIREBOX
318  DF  .~ Having arch
319  DF  .~.~ And flame shaper
320  DF  .~.~ Adjustable dimension firebox
321  DF  .~.~ Door arch
322  DF  BAFFLE OR HEAT RETAINER STRUCTURE
323  DF  .~ Refractory type
324  DF  .~.~ Having concavity for engaging pipe exterior
325  DF  .~.~.~ And structure to bridge pipes
326  DF  .~ Metallic type
327  DF  SOLID FUEL FEED STRUCTURE
328  DF  .~ Movable grate
329  DF  .~.~ Endless chain
330  DF  .~.~.~ Having sprocket drive
331  DF  ARCH OR ROOF STRUCTURE
332  DF  .~ Planar surface area
333  DF  .~.~ Inclined
334  DF  .~.~.~ And convex surface area
335  DF  .~ Concave surface area
336  DF  WALL STRUCTURE
337  DF  .~ Bridgewall
338  DF  BRICK ELEMENT
339  DF  .~ Having hanger
340  DF  .~.~ And metal casing
341  DF  PROCESS
342  DF  .~ Treating fuel constituent or combustion product
343  DF  .~.~ To prevent corrosion of furnace
344  DF  .~.~ Combustion product
345  DF  .~.~.~ Exhaust gas; e.g., pollution control, etc.
346  DF  .~ Incinerating refuse
347  DF  .~ Burning pulverized fuel
348  DF  .~ Supplying fluid
101 R  DF  FUEL FEEDERS
102  DF  .~ Shavings and sawdust
103  DF  .~ Boiler controlled
104 R  DF  .~ Blower
105  DF  .~.~ Hopper
105.5  DF  .~.~ Locomotive stroker type
105.6  DF  .~.~.~ Underfeed to jet only
106  DF  .~.~ Pulverizer
104 A  DF  .~.~ Locomotive distributor plates
104 B  DF  .~.~ Burners, per se
107  DF  .~ Bridgewall
108  DF  .~ Hopper
*  DD  .~.~ Pusher
109  DF  .~.~.~ Reciprocating
110  DF  .~.~.~ Screw
*  DD  .~ Spreader
111  DF  .~.~ Carrier
112  DF  .~.~.~ Door
113  DF  .~.~ Oscillating
114  DF  .~.~ Reciprocating plunger
115  DF  .~.~ Rotary
*  DD  .~ Chute
116  DF  .~.~ Door
117  DF  .~.~.~ Multiple charge
118  DF  .~ Vertical drop
101 A  DF  .~ Shiftable stoker
101 C  DF  .~ Automatic control
101 CF  DF  .~ Fuel control
101 CA  DF  .~ Feeder responsive to fuel bed temperature
101 CB  DF  .~ Feeder responsive to fuel bed pressure
101 CC  DF  .~ Feeder responsive to fuel bed weight
101 CD  DF  .~ Feeder responsive to fuel bed height
119  DF  SPARK ARRESTERS
120  DF  .~ Furnace conductor
121  DF  .~ Combined stack and smokebox
122  DF  .~ Smokebox
123  DF  .~.~ Draft regulator
124  DF  .~.~ Divided
125  DF  .~.~ Hood
126  DF  .~.~ Vertical drum
127  DF  .~.~ Ejector
128  DF  .~.~ Water receptacle
129  DF  .~.~ Discharge valve
145  DF  SPARK AND SMOKE CONDUCTORS
146  DF  .~ Train
147  DF  DRAFT REGULATORS
148  DF  .~ Separation of gases
150  DF  .~ Steam injector
157  DF  .~.~ Feeding air
158  DF  .~.~.~ Door operated
*  DD  .~ Stack
159  DF  .~.~ Portable
160  DF  .~.~ Air jet
161  DF  .~.~.~ Steam injected
162  DF  .~ Fan exhaust
163  DF  .~ Damper
165 R  DF  ASH RECEIVING AND HANDLING DEVICES
166  DF  .~ Ashpans
167  DF  .~.~ Dumping
168  DF  .~.~.~ Conjoined floor sections
169  DF  .~.~.~ Reciprocating discharge valve
170  DF  .~.~.~ Scraper
171  DF  .~.~ Steam and water attachments
165 A  DF  .~ Fly ash disposers
172  DF  FRONTS
173 R  DF  DOORS
174  DF  .~ Feeding air and steam
175 R  DF  .~ Feeding air
175 A  DF  .~.~ Automatic door dampers
176  DF  .~ Operators
177  DF  .~.~ Motor
178  DF  .~.~ Pedal
179  DF  .~ Fluid screens
173 A  DF  .~ Soaking pit covers
173 B  DF  .~ Explosion relief doors
173 C  DF  .~ Compound doors
*  DD  DOORS AND CASINGS
180  DF  .~ Cooling
181  DF  DOOR CASINGS AND ARCHES
182  DF  .~ Feeding air
182.5  DF  TUYERES
182.6  DF  .~ Forge
184  DF  SMOKESTACKS
349  DF  MISCELLANEOUS