US Patent Class 266
METALLURGICAL APPARATUS



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Current as of: June, 1999
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  DF  CLASS NOTES
44  DF  PROCESS
45  DF  .~ Plugging or tapping
46  DF  .~ Cooling
47  DF  .~ Tuyere operation
48  DF  MEANS FOR CUTTING SOLID METAL WITH HEAT, E.G., BLOWPIPES
49  DF  .~ With waste entrapping fluid
50  DF  .~ Means for cutting continuously cast workpieces
51  DF  .~ Means for removing surface material, e.g., scarfing
52  DF  .~.~ Having means to simultaneously scarf multiple sides of a workpiece
53  DF  .~.~ Having workpiece-contacting cutting means spacer
54  DF  .~ With means for cutting tubular workpiece
55  DF  .~.~ Having torch mount secured within workpiece
56  DF  .~.~ Having means to circumrotate torch about workpiece
57  DF  .~.~ With means to rotate workpiece
58  DF  .~ With pattern control means
59  DF  .~.~ With tape-control means
60  DF  .~.~ With automatic line-follower means
61  DF  .~.~ With means to rotate workpiece
62  DF  .~.~ Having articulated arm supporting torch
63  DF  .~.~.~ With pantograph arm means
64  DF  .~.~ Having spaced, superposed templet
65  DF  .~ With work supporting grate means
66  DF  .~ Hand held, work riding torch
67  DF  .~ With wheeled carriage torch mount
68  DF  .~.~ Having work contacting torch spacing means
69  DF  .~.~ With work-spanning torch mount
70  DF  .~ Circle cutter
71  DF  .~ Having torch solely supported by workpiece
72  DF  .~ With cantilevered arm torch support
73  DF  .~.~ Having carriage-supported cantilevered arm
74  DF  .~ Having adjuvant material feed
75  DF  .~.~ Solid material
76  DF  .~ Having torch spacing means
77  DF  .~ With torch mounting means
78  DF  WITH CONTROL MEANS RESPONSIVE TO SENSED CONDITION
79  DF  .~ By treated material sampling means
80  DF  .~ With analyzer or computation means
81  DF  .~ With means supplying a treating agent
82  DF  .~.~ Correlated flow of diverse fluents
83  DF  .~.~.~ With flow rate sensor
84  DF  .~.~.~ With means sensing moisture content
85  DF  .~.~ Individual control of diverse inputs
86  DF  .~.~ By means positioning dispenser
87  DF  .~ With temperature sensor
88  DF  .~.~ In a fluid
89  DF  .~ With pressure sensor
90  DF  .~ With means responsive to condition of treated material
91  DF  .~.~ By means sensing weight or density of work
92  DF  .~.~ By means sensing position of work
93  DF  .~.~.~ By means sensing presence or absence of work
94  DF  .~.~.~ By means sensing level of molten liquid
95  DF  .~.~.~.~ By float means
96  DF  WITH PROGRAMMED, CYCLIC, OR TIME RESPONSIVE CONTROL MEANS
97  DF  .~ By timer
98  DF  .~.~ Having driven disk or drum
99  DF  WITH RECORDING, INDICATING, INSPECTION OR MEASURING MEANS
100  DF  .~ Having observation means
101  DF  HAVING MEANS FOR LEACHING AND SUBSEQUENTLY PRECIPITATING A METAL
102  DF  MEANS TREATING A CONTINUUM OF WORK
103  DF  .~ With heating means
104  DF  .~.~ By joule effect
105  DF  .~.~ Discrete article continuum
106  DF  .~.~ Overlapped planar coil
107  DF  .~.~ In a molten material bath
108  DF  .~.~ In a muffle furnace
109  DF  .~.~ With cooling by contact with solid heat sink
110  DF  .~.~ In specific environment, e.g., vacuum
111  DF  .~.~ With fluid contact means
112  DF  .~.~.~ In liquid bath
113  DF  .~.~.~ In liquid spray
114  DF  HAVING MEANS FOR CONTACTING A SOLID METALLIFEROUS MATERIAL OR METAL OBJECT WITH A LIQUID
115  DF  .~ With means changing the shape of a treated object, e.g., roller means
116  DF  .~.~ Spring shaping means
117  DF  .~ With means to prevent warping of treated object
118  DF  .~.~ Of a gear wheel
119  DF  .~.~ With heating of object
120  DF  .~ By immersing an article to be treated in bath of molten material, e.g., salt bath
121  DF  .~ With heating means, e.g., flame contact
122  DF  .~.~ By means treating metalliferous materials, e.g., ores
123  DF  .~.~ By heating means adapted to be inserted into a hollow object
124  DF  .~.~ By means heating selected areas of an object
125  DF  .~.~.~ By means specialized to heat an article having an irregular contour (e.g., cams, gears)
126  DF  .~.~.~.~ By heating means configured to fit between adjacent gear teeth
127  DF  .~.~ Unitized heating and fluid contact means
128  DF  .~.~ By electric heating means
129  DF  .~.~.~ Inductance type
130  DF  .~.~ Having bath for contacting the work with liquid
131  DF  .~.~.~ With means to agitate or control temperature of bath
132  DF  .~.~.~ Having work introducing elevator
133  DF  .~.~.~ Having means to move work through bath
134  DF  .~ By means contacting only selected areas of treated article with liquid
135  DF  WITH CLEANING OR LUBRICATING MEANS
136  DF  .~ Fluid injector cleaner
137  DF  WITH MEANS TO COMMINUTE OR DISINTEGRATE SOLIDS
138  DF  WITH MEANS TO PREHEAT GAS
139  DF  .~ Having heat storage means, e.g., checkers, stroves
140  DF  .~ By heat generating means
141  DF  .~ By remote heat exchanger
142  DF  GEOGRAPHIC OR STRUCTURAL INSTALLATION
143  DF  .~ Having refining vessel with travelling support
144  DF  WITH MEANS TREATING OR HANDLING GASES EXHAUSTED BY TREATING MEANS
145  DF  .~ Having means to treat or handle gases evolving from rotary furnace
146  DF  .~ By contacting gas with nonmetallic liquid
147  DF  .~.~ By liquid spraying
148  DF  .~ By condensing and collecting a volatile constituent
149  DF  .~.~ Within evacuated chamber
150  DF  .~.~ Having molten metal splashing means
151  DF  .~.~ By cascading material evolving the gas
152  DF  .~.~ By indirect liquid heat exchange means
153  DF  .~.~ Having retort condenser
154  DF  .~.~ Vertical shaft furnace
155  DF  .~ With heat exchanger, e.g., waste heat boiler
156  DF  .~ By means recycling exhaust gas
157  DF  .~ By separating particles from evolved gas
158  DF  .~ Hood
159  DF  .~ Offtake
160  DF  COMBINED OR CONVERTIBLE
161  DF  MEANS FOR EXTRACTING AND REFINING METAL
162  DF  .~ With separate refining zone
163  DF  .~.~ With rotating heating vessel
164  DF  .~.~ With heated vertical extracting means
165  DF  AMBULANT VESSEL
166  DF  TREATING VESSEL WITH DISTINCT MOLTEN MATERIAL HOLDING MEANS, E.G., FOREHEARTH
167  DF  THERMIT REACTION VESSEL
168  DF  MEANS FOR TREATING ORES OR FOR EXTRACTING METALS
169  DF  .~ Amalgam-type extraction means
170  DF  .~ By means precipitating metal from solution
171  DF  .~ By means applying heat to work, e.g., furnace
172  DF  .~.~ Fluidized zone
173  DF  .~.~ Rotary drum-type furnace
174  DF  .~.~ With safety device
175  DF  .~.~ With separate preheat chamber
176  DF  .~.~ With means for moving solid material to or through heating zone
177  DF  .~.~.~ By means for moving charge through zone
178  DF  .~.~.~.~ Traveling grate
179  DF  .~.~.~.~.~ With seal means
180  DF  .~.~.~.~.~ Train of grate elements
181  DF  .~.~.~.~ Means forming cascading array
182  DF  .~.~.~ By fluid current
183  DF  .~.~.~ By power-driven means conveying solid charge into zone
184  DF  .~.~.~ Bell and hopper type
185  DF  .~.~ With work supporting grate
186  DF  .~.~ With means for feeding fluids
187  DF  .~.~.~ With flow regulating means
188  DF  .~.~.~ With common outlet means to feed diverse fluids
189  DF  .~.~.~ With means to cool fluid feeding means
190  DF  .~.~ With cooling of heating means
191  DF  .~.~.~ By means cooling material discharge means
192  DF  .~.~.~ By direct fluid contact
193  DF  .~.~.~ By means embedded in heating means
194  DF  .~.~.~.~ Having means to facilitate removal of cooling means
195  DF  .~.~ With discharge means
196  DF  .~.~.~ With trough-shaped outlet, e.g., runner
197  DF  .~.~ Shaft-type furnace, e.g., blast furnace
198  DF  .~.~.~ Having external support
199  DF  .~.~.~ Having specific top structure
200  DF  MEANS FOR MELTING OR VAPORIZING METAL OR TREATING LIQUEFIED METAL
201  DF  .~ Slag refining means
202  DF  .~ Spray refining means
203  DF  .~ By means specialized to puddle metal
204  DF  .~ Means applying centrifugal force
205  DF  .~ Means to melt and separate metal from mass of diverse constituents
206  DF  .~ Means for melting-type material, e.g., Linotype
207  DF  .~ By providing, treating or protecting environment, e.g., vacuum
208  DF  .~.~ By application of vacuum
209  DF  .~.~.~ By upward flow of metal within treating zone
210  DF  .~.~.~.~ Recirculating material to its source
211  DF  .~.~.~ Enclosed within casing
212  DF  .~ Refining means with separate metal-melting zone
213  DF  .~ Revolving drum-type furnace
214  DF  .~ Reverberatory refining vessel, e.g., open hearth
215  DF  .~ Continuous refining
216  DF  .~ By means introducing treating material
217  DF  .~.~ Gaseous treating material
218  DF  .~.~.~ Having fluid inlet formed in vessel wall, e.g., tuyere
219  DF  .~.~.~.~ Having intersecting streams converging on central axis of vertical furnace
220  DF  .~.~.~.~ Having porous outlet
221  DF  .~.~.~.~ By means to introduce diverse material
222  DF  .~.~.~.~.~ Concentric flow paths
223  DF  .~.~.~.~ Having control means
224  DF  .~.~.~.~ Having tuyere formed in plug bottom
225  DF  .~.~.~ Lance
226  DF  .~.~.~.~ With manipulating means
227  DF  .~ By separating metal in a molten mass from undesired material, e.g., slag
228  DF  .~.~ By skimming a material
229  DF  .~.~ By baffle means
230  DF  .~.~.~ At discharge outlet
231  DF  .~.~.~ In discharge trough, e.g., runner
232  DF  .~.~ Settling receptacle, e.g., slag pot
233  DF  .~ By stirring or mixing molten metal
234  DF  .~.~ Induction stirring
235  DF  .~.~ Having impeller means
236  DF  .~ With means to discharge molten material
237  DF  .~.~ Including electromagnetic means
238  DF  .~.~ Means for removing residual material
239  DF  .~.~ By changing ambient pressure on material surface, e.g., suction
240  DF  .~.~ With means to tilt heating means
241  DF  .~ With means to cool treating means
242  DF  .~ Heated melting pot
243  DF  .~ Bessemer-type treating vessel
244  DF  .~.~ By mounting vessel to revolve about its longitudinal axis
245  DF  .~.~ With means pivotally mounting vessel
246  DF  .~.~.~ Means mounting vessel to trunnion ring
247  DF  .~.~.~ Means mounting vessel to U-shaped trunnion support means
248  DF  .~ Horizontal, rotatable, cylindrical type
249  DF  MEANS TREATING SOLID METAL
250  DF  .~ Having evacuated chamber
251  DF  .~ By contact with gas
252  DF  .~.~ With heating means
253  DF  .~.~.~ Bottom feeding furnace
254  DF  .~.~.~ With indirect heat-exchange means for gas
255  DF  .~.~.~ Having work contained in separate, noncommunicating chamber, e.g., muffle
256  DF  .~.~.~.~ Bell furnace
257  DF  .~.~.~ Having atmosphere generating means within treating zone
258  DF  .~.~ By contacting only selected areas of object
259  DF  .~ By cooling of the solid
260  DF  .~.~ By contact with solid heat sink
261  DF  .~ By flame contact heating
262  DF  .~ Fluid tight heat transferring box shield or hood (e.g., annealing box)
263  DF  .~.~ Bell-type hood, or support for such hood
264  DF  .~.~.~ Having packing at hood lip
265  DF  MEANS FOR INTRODUCING FLUENT INTO VESSEL, E.G., TUYERE
266  DF  .~ With flow control means or internal flow guide
267  DF  .~ Having means for simultaneously feeding diverse materials
268  DF  .~.~ Having plural outlets
269  DF  .~ Having drain means or cleaner insertion means, e.g., punch hole
270  DF  .~ Having means preventing damage to introducing means, e.g., wear linings, cooling
271  DF  MEANS SEALING OR OPENING APERTURE IN VESSEL
272  DF  .~ By means plugging aperture
273  DF  .~.~ By means injecting plugging compound, e.g., mud gun
274  DF  MEANS FOR HOLDING OR SUPPORTING WORK
275  DF  .~ Receptacle
276  DF  .~.~ With means movably supporting receptacle
277  DF  .~.~.~ By bed of rollers
278  DF  .~.~ Having corrugated wall
279  DF  .~ Grate
280  DF  LININGS
281  DF  .~ With making or repairing means
282  DF  .~ With metallic means to prevent lining abrasion
283  DF  .~ Having particular lining element shape
284  DF  .~ Having specific grain size
285  DF  .~ With means allowing for expansion
286  DF  .~ With specific lining enclosing structure
287  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  METAL MELTING FURNACES, E.G., CUPOLA TYPE
901  DF  SCRAP METAL PREHEATING OR MELTING
902  DF  BLOWPIPES SPECIALIZED TO TRANSVERSELY CUT OR NOTCH BLOOMS, BILLETS OR BARS
903  DF  SAFETY SHIELDS
904  DF  BLOWPIPE CUTTING HEADS
905  DF  REFRACTORY METAL-EXTRACTING MEANS
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DIGEST
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DIG 1  DD  REPAIR OR RESTORATION OF APPARATUS