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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 95 | GAS SEPARATION: PROCESSES |
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1 | WITH CONTROL RESPONSIVE TO SENSED CONDITION |
2 | Electric or electrostatic field (e.g., electrostatic precipitation, etc.) |
8 | Concentration sensed |
9 | pH sensed |
10 | Humidity sensed |
11 | Flow of fluid mixture to sorber stopped or diverted to other equipment, or sorbent regenerated |
12 | Gas flow rate modified |
13 | Sorbent flow rate modified |
14 | Temperature sensed |
15 | And pressure sensed |
16 | Modification of flow rate of liquid which is added to gas |
17 | Cooling |
18 | Heating |
19 | Pressure sensed |
23 | Gas flow rate sensed |
24 | Liquid level sensed |
25 | WITH RECORDING OR SIGNALING CONDITION |
26 | WITH TIMING OF OPERATION |
27 | MAGNETIZED PARTICLE BED |
28 | MAGNETIC SEPARATION |
29 | SOUND WAVES USED |
31 | DIFFERENCE IN MOLECULAR VELOCITY, DENSITY, OR MOMENTUM OF GASES USED |
36 | LIQUID-SOLID SLURRY USED |
39 | COMPRESSING AND INDIRECT COOLING OF GASEOUS FLUID MIXTURE TO SEPARATE |
40 | And use of heat absorbing agent |
41 | And solid sorption |
42 | And liquid contact (e.g., scrubbing, sorption, etc.) |
43 | SELECTIVE DIFFUSION OF GASES |
44 | Selective diffusion of gases through immobilized liquid |
45 | Selective diffusion of gases through substantially solid barrier (e.g., semipermeable membrane, etc.) |
46 | Degasification of liquid |
47 | Nitrogen or nitrogen containing compound permeates barrier |
48 | Halogen containing compound permeates barrier |
49 | Sulfur containing compound permeates barrier |
50 | Organic compound permeates barrier |
51 | Carbon dioxide or carbon monoxide permeates barrier |
52 | Water vapor permeates barrier |
53 | Helium permeates barrier |
54 | Oxygen permeates barrier |
55 | Hydrogen permeates barrier |
57 | ELECTRIC OR ELECTROSTATIC FIELD (E.G., ELECTROSTATIC PRECIPITATION, ETC.) |
58 | With addition of solid, gas, or vapor |
59 | Electrode treating (e.g., coating, cleaning, etc.) |
60 | Heating or cooling |
61 | Solid is electrically conducting |
62 | Agglomerating gas-borne particles |
63 | And nonelectrical separation of fluid mixture |
64 | Liquid addition to gaseous fluid mixture |
67 | By heating or cooling |
68 | Including cleaning or regeneration of separating means (e.g., particulate bed filter, deflector, etc.) |
69 | Distinct separation step precedes electric or electrostatic treatment |
70 | Distinct separation step follows electric or electrostatic treatment |
71 | With addition of liquid to gaseous fluid mixture |
73 | With heating or cooling |
74 | With cleaning of collector electrode |
77 | Continuously moving electrode |
78 | Including baffling, deflection, or restriction of gas flow |
79 | Plural separate stages or zones (e.g., separate ionization and collection regions, etc.) |
81 | Pulsing or time-varying electric field (e.g., AC, pulsed DC, etc.) |
82 | CHROMATOGRAPHY |
83 | Liquid supported on surface of capillary column |
84 | Liquid supported on particulate packing |
85 | Including use of gas flow distributor in column |
86 | Plural separate columns |
87 | With heating or cooling |
88 | Specific column packing or sorbent material (e.g., particle size, composition, etc.) |
89 | Injection, per se, without separation |
90 | SOLID SORPTION |
91 | Soluble or deliquescent material used |
92 | And liquid contact (e.g., scrubbing, sorption, etc.) |
95 | Including reduction of pressure |
96 | Plural pressure varying steps (e.g., pressure swing adsorption, etc.) |
104 | Sweep gas used |
106 | With heating or cooling |
107 | Moving sorbent |
108 | Fluidized bed |
110 | Gravity flow of sorbent from zone to zone |
113 | Rotating housing containing fixed sorbent or rotating plurality of housings |
114 | With plural indirect heat transfer steps on solid sorbent or gaseous fluid mixture or constituent thereof |
116 | Inorganic gas or liquid particle sorbed (e.g., vapor, mist, etc.) |
117 | Water sorbed |
118 | Plural separating treatments of gas by solid sorbent to remove water |
121 | And regeneration of solid sorbent |
127 | Noble gas sorbed |
128 | Nitrogen containing compound sorbed |
130 | Nitrogen sorbed |
131 | Halogen or halogen containing compound sorbed |
133 | Metal or metal containing compound sorbed |
135 | Sulfur containing compound sorbed |
138 | Oxygen or ozone sorbed |
139 | Carbon dioxide sorbed |
140 | Carbon monoxide sorbed |
141 | Organic gas or liquid particle sorbed (e.g., vapor, mist, etc.) |
148 | And regeneration |
149 | LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.) |
150 | Including foaming of liquid to aid in the separation |
151 | Mechanical agitation of liquid body to contact gaseous fluid mixture |
152 | Coagulating or flocculating agent |
153 | Hydrate inhibitor |
154 | Surfactant or wetting agent |
155 | Defoaming or antifoaming agent |
156 | And degasification of a liquid |
157 | Defoaming |
158 | Degasification step occurs first, with removed gas subsequently contacted by liquid |
159 | By stripping with gas |
160 | And reduction of pressure (e.g., flashing, etc.) |
165 | And heating |
166 | Liquid recycled or reused |
167 | Vaporized component of contact liquid is stripping gas |
168 | Steam is stripping gas |
169 | Liquid recycled or reused |
170 | Air is stripping gas |
171 | Inert stripping gas |
172 | By reduction of pressure (e.g., flashing, etc.) |
178 | By heating |
179 | Liquid recycled or reused |
181 | Sulfur compound removed |
182 | Halogen compound removed |
183 | Carbon dioxide removed |
184 | Organic compound removed |
185 | By liquid flow modifying or mechanical agitating |
186 | Liquid recycled or reused |
187 | And recycle or reuse of contact liquid for further contact |
188 | After separation of liquid from contact liquid |
189 | And separation of solid from contact liquid |
190 | By liquid-liquid extraction or formation of azeotrope |
191 | By stripping with gas |
192 | By reduction of pressure (e.g., flashing, etc.) |
193 | By heating (e.g., fractional distillation, etc.) |
195 | After separation of solid from contact liquid |
198 | And deflection to remove liquid particles from gas |
199 | Liquid contact in plural serial stages |
202 | Removal of solid or liquid particles from gas |
203 | Reduction of pressure |
204 | And recycle of gas for further contact |
205 | And separation of solid from contact liquid |
206 | And separation of liquid from contact liquid |
207 | By stripping with gas |
208 | By reduction of pressure (e.g., flashing, etc.) |
209 | By heating (e.g., fractional distillation, etc.) |
210 | On surface extending mass |
214 | And filtration of gas |
216 | And deflection |
217 | Liquid is in form of curtain |
218 | Including movement of deflector |
219 | Including rotation of liquid, gaseous fluid mixture, or gas-liquid mixture through 360 degrees in stationary apparatus |
221 | Deflection in plural serial stages |
223 | In plural serial stages |
226 | Gaseous fluid mixture discharged against or beneath surface of liquid body |
227 | With heating |
228 | With cooling |
230 | Inorganic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.) |
231 | Water sorbed |
232 | Nitrogen or nitrogen containing compound sorbed |
233 | Halogen or halogen containing compound sorbed |
234 | Metal or metal containing compound sorbed |
235 | Sulfur or sulfur containing compound sorbed |
236 | Carbon dioxide sorbed |
237 | Organic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.) |
241 | DEGASIFICATION OF LIQUID |
242 | Defoaming |
243 | Plural successive degassing treatments |
244 | Boiler feed water degassing |
245 | By stripping with gas |
247 | By reduction of pressure (e.g., flashing, etc.) |
251 | By heating |
253 | Emulsion breaking or multiple liquid separating |
254 | And subsequent handling of evolved gas, stripping gas, or residue liquid |
255 | Evolved gas removed by sweep gas |
256 | For indirect heat exchange |
258 | Gas recycled or further separated |
259 | Liquid further separated |
260 | By liquid flow modifying or mechanical agitating |
263 | By stripping with gas |
266 | By reduction of pressure (e.g., flashing, etc.) |
267 | DEFLECTING |
273 | FILTERING |
274 | Through particulate solids |
277 | Moving filter |
278 | With cleaning of filter |
283 | With heating of filter |
284 | And reduction of pressure |
285 | Coated or chemically treated filter |
286 | Plural separate media |
288 | HEAT EXCHANGING |
291 | MISCELLANEOUS |
CROSS-REFERENCE ART COLLECTIONS | ||
900 | SOLID SORBENT |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
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