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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 202 | DISTILLATION: APPARATUS |
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81 | APPARATUS |
82 | Systems |
83 | Portably mounted |
84 | Separatory and thermolytic |
85 | Thermolytic and autothermic |
91 | Autothermic |
96 | Thermolytic |
97 | Stalls |
99 | Directly heated chamber |
101 | Dome ovens |
102 | Hearths |
105 | Retort |
106 | With steam generation |
107 | With digester |
108 | With direct heating |
109 | With cyclic volatile circulation |
110 | With distilland pressure |
111 | With recuperators and regenerators |
112 | With distillate fixing chamber |
113 | Plural |
117 | Conveying |
120 | Vertical |
128 | Inclined |
133 | Horizontal |
134 | With fluid injection to retort |
135 | Plural gas and/or air admission |
136 | Rotary |
137 | With heating chamber |
138 | With flues |
147 | Gas bench |
150 | Preheating |
151 | Combustion control devices |
152 | Separatory |
153 | Still and column |
158 | Column |
159 | With preheater |
160 | Automatic temperature and/or pressure control |
161 | Partial reflux condenser |
162 | Vapor-element by-pass |
163 | Still |
164 | Recovery from containers |
165 | Still and stove |
166 | Still and stand boiler |
167 | Still and feed-water heater |
168 | Still and extractor |
170 | Still extractor |
172 | Plural |
175 | With agitator |
176 | With distilland treating devices |
182 | With vapor-treating devices |
183 | Still and absorber |
185.1 | Condenser |
185.2 | Direct contact |
185.3 | Air condensers |
185.4 | Circulating coolant in cap or top closure |
185.5 | Helical coil for vapor stream |
185.6 | Helical coil for coolant |
186 | Plural |
187 | Concentric with still |
188 | Still supporting |
189 | Still supported |
195 | Still feeding |
197 | With separator |
198 | Dephlegmator |
199 | Doubler |
200 | Filter |
201 | Aerator |
202 | With condensate-treating devices |
205 | Vacuum |
206 | Automatic heat control |
Types |
Separatory and thermolytic |
Autothermic |
210 | Heap |
211 | Kiln |
215 | Directly heated chamber |
217 | Retort |
218 | Rotary and/or tilting |
219 | Molten bath |
220 | Flued |
221 | Vertical |
222 | Structural features |
226 | Residue treatment |
227 | Quencher |
Separatory |
239 | Elements |
241 | Cleaning and decarbonizing |
242 | Closures |
254 | Offtakes |
262 | Feeding and discharging |
264 | Foam control |
265 | Agitating |
266 | Distilland supports and containers |
267.1 | Materials of construction |
268 | Expansion provisions |
269 | Air and gas seals |
270 | Accessories and details |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
DIGESTS | ||
DIG1 | SCALE PROBLEMS DIGEST |
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