US Patent Class 55
GAS SEPARATION
 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| Electronic File Wrappers | Electronic Patent Documents | Paper Patent Documents | Current as of: June, 1999
| and Services |
| DF | CLASS NOTES | |
| 282 | DF | WITH NONLIQUID CLEANING MEANS FOR SEPARATING MEDIA |
| 282.1 | DF | .~ Having insulation |
| 282.2 | DF | .~ With heating or cooling means |
| 282.3 | DF | .~.~ Residue burned |
| 282.4 | DF | .~.~ Two confined fluids in indirect contact |
| 282.5 | DF | .~.~.~ Heat exchanger is part of separator or is contiguous therewith |
| 283 | DF | .~ With automatic control of cleaning means |
| 284 | DF | .~ With sequential cleaning of plural units |
| 285 | DF | .~.~ Ferris wheel type filter unit arrangement |
| 286 | DF | .~.~ With gas flow arresting means |
| 287 | DF | .~.~.~ Interconnected with cleaning means |
| 288 | DF | .~ Interdependent or interoperated gas flow cutoff or apparatus shutdown and media cleaning |
| 289 | DF | .~ Interdigitated comb and separating media |
| 290 | DF | .~ For moving indefinite or continuous length separating media |
| 291 | DF | .~ Plural diverse cleaning means |
| 292 | DF | .~ Sonic type |
| 293 | DF | .~ With separating media pneumatically vibrated or flexed |
| 294 | DF | .~ Relatively movable pneumatic nozzle (e.g., scanning nozzle) |
| 295 | DF | .~ Solid agent cleaning member movingly contacts apparatus |
| 296 | DF | .~.~ Agent has defined traversing motion relative to separating media |
| 297 | DF | .~.~.~ With motion effecting means interrelated with separating operation |
| 298 | DF | .~.~.~.~ Gas flow actuates member |
| 299 | DF | .~.~.~ With resulting flexing or distortion of resilient or collapsible separating media |
| 300 | DF | .~.~ Vibrating, jarring, or rapping means |
| 301 | DF | .~ Cohesive filter media cleaning |
| 302 | DF | .~.~ Pneumatic reverse flushing |
| 303 | DF | .~.~.~ Draft diverted from one side of filter to other |
| 304 | DF | .~.~ Filter manipulation, shaking or flexing for precluding or removing encrustation |
| 305 | DF | .~.~.~ Attendant actuated manipulating means |
| 306 | DF | AIRCRAFT ANTI-INGESTION MEANS (E.G., AIRCRAFT DEBRIS GUARD) |
| 307 | DF | FILTER OR APERTURED DEFLECTOR UNIT DISCONTINUOUS ACROSS GAS FLOW WITHIN FLOW CONDUIT |
| 308 | DF | .~ Multiple members serially spaced in flow conduit |
| 309 | DF | WITH SEPARATING MEDIA BYPASS OR SYSTEM GAS PRESSURE RELIEF (E.G., RUPTURABLE OR DEFORMABLE) |
| 309.1 | DF | .~ With heating or cooling means |
| 310 | DF | .~ Pressure relief means to or from atmosphere |
| 311 | DF | .~.~ Relief means is downstream of media (e.g., ambient air bypasses filter) |
| 312 | DF | .~ Valved bypass means |
| 313 | DF | .~.~ Gas force responsive |
| 314 | DF | .~.~ Shunt means for total flow |
| 315 | DF | PLURAL SERIAL BASICALLY DIVERSE SEPARATING MEDIA |
| 315.1 | DF | .~ With heating or cooling means or having insulation |
| 315.2 | DF | .~.~ Heat exchanger is part of separator or is contiguous therewith |
| 317 | DF | .~ At least one mounted for continuous motion |
| 318 | DF | .~ Plural stages in unitary casing |
| 319 | DF | .~.~ Including expansion chamber |
| 320 | DF | .~.~ Deflector and fibrous, filamentary, particulate solids, or cohesive sheet filter type |
| 321 | DF | .~.~.~ Multiple of one type in series of parallel in flow path |
| 322 | DF | .~.~.~.~ Serially spaced with at least one of other type intermediately positioned |
| 323 | DF | .~.~.~.~ Filters |
| 324 | DF | .~.~.~.~.~ In parallel |
| 325 | DF | .~.~.~.~ Serially spaced deflectors |
| 326 | DF | .~.~.~.~.~ With connected trough or channel |
| 327 | DF | .~.~.~ Filter is most upstream |
| 328 | DF | .~.~.~ Movable or movable mounted for adjustment or nonuse |
| 329 | DF | .~.~.~ Filamentary brush type or fibrous mass |
| 330 | DF | .~.~.~.~ Tubular or annular for radial gas flow |
| 331 | DF | .~.~.~ Conical deflector with curved or parabolic radially extending wide downstream end |
| 332 | DF | .~.~.~ Cohesive sheet-like filter |
| 333 | DF | .~.~.~.~ Multiple contiguous layers or coils with radial gas flow |
| 334 | DF | .~.~.~.~ Bag type |
| 335 | DF | .~.~.~.~.~ Including imperforate upstream bag end deflector |
| 336 | DF | .~.~.~.~ Conical |
| 337 | DF | .~.~.~.~ Cyclone or centrifugal whirl type deflector |
| 338 | DF | WITH RECYCLE MEANS |
| 338.1 | DF | .~ With heating or cooling means |
| 339 | DF | .~ For concentrate entrained in effluent gas outlet means |
| 340 | DF | .~.~ Return conduit is external of apparatus |
| 341.1 | DF | MULTIPLE BAG TYPE FILTERS IN CHAMBER |
| 341.11 | DF | .~ With heating or cooling means or having insulation |
| 341.2 | DF | .~ Gas flow from inside to outside of filter |
| 341.3 | DF | .~.~ Modular compartments |
| 341.4 | DF | .~.~ Horizontally mounted filters |
| 341.5 | DF | .~ Modular compartments |
| 341.6 | DF | .~ Partitioned bag filter chamber |
| 341.7 | DF | .~ Horizontally mounted filters |
| 342 | DF | MULTIPLE SEPARATORS, EACH WITH DISCRETE AND LONGITUDINALLY CONFINED GAS INLET OR OUTLET FLOW PATH |
| 342.1 | DF | .~ With heating or cooling means or having insulation |
| 342.2 | DF | .~.~ Heat exchanger is part of separator or is contiguous therewith |
| 343 | DF | .~ Combined serial and parallel arrangement |
| 344 | DF | .~ With flow equalizing, controlling, or distributing means |
| 345 | DF | .~ Centrifugal |
| 346 | DF | .~.~ Parallel |
| 347 | DF | .~.~.~ Gas inlet and outlet at linearly opposite ends of separating zone |
| 348 | DF | .~.~.~ Plural gas inflow openings, slots, or whirl vanes in each separator |
| 349 | DF | .~.~.~ Tangential inlet to each separator |
| 350.1 | DF | .~ Filters |
| 351 | DF | WITH MEANS FOR ADVANCING CLEAN PORTIONS OF CONTINUOUS OR INDEFINITE LENGTH SEPARATING MEDIA INTO GAS STREAM |
| 352 | DF | .~ Advancing means initiated by flow, pressure, or pressure differential of gas |
| 353 | DF | .~ Multiple distinct units |
| 354 | DF | .~ Indefinite or running length |
| 355 | DF | WITH LIQUID TRAP SEAL OR VALVE |
| 356 | DF | WITH MEANS FACILITATING TRANSPORTABILITY OR HANDLING OF APPARATUS |
| 357 | DF | .~ Handle feature for apparatus or part thereof |
| 358 | DF | WITH GROUND SUPPORT MEANS (NONFLOW CONDUCTING) |
| 359 | DF | WITH PORTION OF COVER REMOVABLE |
| 360 | DF | WITH ELECTRICAL GROUNDING MEANS |
| 361 | DF | FLEXIBLE OR COLLAPSIBLE BAG TYPE |
| 362 | DF | .~ With bag ejecting means |
| 363 | DF | .~ Toroidal or annular bag |
| 364 | DF | .~ Impervious bag with pervious portion |
| 365 | DF | .~ Bag carried strain relief means between bag supports |
| 366 | DF | .~ With separable nonfiltering residue container |
| 367 | DF | .~ Valved, self-closing, or apparatus contained bag closing means |
| 368 | DF | .~ Spaced interior inflow path or with means modifying gas flow in bag |
| 369 | DF | .~ Closure means other than coupler to flow line for filter or cover bag |
| 370 | DF | .~.~ Use position residue removal means |
| 371 | DF | .~.~.~ Inner filter bag removal |
| 372 | DF | .~ With additional nonbag type filter |
| 373 | DF | .~ Housing closure secures bag |
| 374 | DF | .~ With flow line coupling means |
| 375 | DF | .~.~ Flexible conduit joins line to bag |
| 376 | DF | .~.~ Coupling part inseparable from bag |
| 377 | DF | .~.~.~ Resilient or expansible |
| 378 | DF | .~ With securing or supporting means |
| 379 | DF | .~.~ Bag internally supported |
| 380 | DF | .~ Nested bags or folded wall with spaced or unsecured faces |
| 381 | DF | .~ Seaming, reinforcing or bag structure |
| 382 | DF | .~.~ Multi-ply, strata, or laminated |
| 383 | DF | WITH REMOTE FAN OR PUMP AND UNCONFINED FLOW TO SEPARATOR |
| 385.1 | DF | COMBINED OR CONVERTIBLE |
| 385.2 | DF | .~ In environmental air enclosure |
| 385.3 | DF | .~ In motor vehicle |
| 385.4 | DF | .~ In vented container |
| 385.5 | DF | .~ Involving mining or metallurgical apparatus |
| 385.6 | DF | .~ Involving communication receiving or transmitting apparatus |
| 385.7 | DF | .~ Involving shielding apparatus |
| 385.8 | DF | .~ Involving ash tray |
| 391 | DF | RESTRICTED ANNULAR MIXTURE INLET TO COLLECTOR ZONE AROUND GAS OUTLET CONDUIT ATTACHED BAFFLE |
| 392 | DF | WITH GUIDE MEANS EFFECTING REMOVAL OF CONSTITUENT LAYER OUT OF GAS STREAM |
| 392.1 | DF | .~ With heating or cooling means |
| 393 | DF | .~ Movably mounted for adjustment |
| 394 | DF | .~ At escape means for heavier constituent |
| 395 | DF | .~.~ And separable residue receptacle |
| 396 | DF | .~.~ Annular outlet around gas outflow path |
| 397 | DF | .~.~ Spaced, overlapped walls |
| 398 | DF | .~.~ Plural, angularly spaced |
| 399 | DF | .~ Spiral guide |
| 400 | DF | MOUNTED OR SUPPORTED FOR CONTINUOUS MOTION |
| 401 | DF | .~ Plural distinct separating media or stages |
| 402 | DF | .~.~ Overlapping moving separators |
| 403 | DF | .~.~ Plural moving separators serially arranged |
| 404 | DF | .~ Moved by system fluid in confined flow path |
| 405 | DF | .~.~ Fluid flow normal to axis of moving member |
| 406 | DF | .~ Differentially deflected system fluid constituents |
| 407 | DF | .~.~ Concentrate flow groove, guide, or channel on moving member |
| 408 | DF | .~.~ Separated gas conducted axially through rotating member |
| 409 | DF | .~.~.~ Hollow shaft |
| 410 | DF | WITH SEPARATED GAS OUTFLOW CONTROL (E.G., APERTURED CONDUIT) |
| 410.1 | DF | .~ With heating or cooling means |
| 411 | DF | .~ Movable gas outlet conduit |
| 412 | DF | .~.~ Longitudinal |
| 413 | DF | .~ Baffle or flow guide |
| 414 | DF | .~.~ Within or downstream of gas outlet conduit |
| 415 | DF | .~.~.~ Movable baffle of flow guide |
| 416 | DF | .~.~.~ Flow straightener |
| 417 | DF | .~ Valve |
| 418 | DF | WITH INFLOW GAS CONTROL OR DISTRIBUTION |
| 418.1 | DF | .~ With heating or cooling means or having insulation |
| 419 | DF | .~ Multiple inlets |
| 420 | DF | .~ Check valve |
| 421 | DF | WITH MEANS FOR LIQUID SEPARATION |
| 422 | DF | SEPARATING MEDIA ADJUSTABLE TO VARIOUS POSITIONS OF USE OR TO NONUSE |
| 423 | DF | MEANS WITHIN GAS STREAM FOR CONDUCTING CONCENTRATE TO COLLECTOR |
| 424 | DF | WITH CONCENTRATE BACKFLOW OR RE-ENTRAINMENT PREVENTING MEANS |
| 425 | DF | .~ Closure between separating and collecting zones |
| 426 | DF | .~ Baffle intermediate concentrate collector zone and gas outlet conduit |
| 427 | DF | .~.~ Adjustably mounted |
| 428 | DF | RESIDUE ACCESS, HANDLING OR REMOVING MEANS |
| 428.1 | DF | .~ With heating or cooling means |
| 429 | DF | .~ Separable collection container |
| 430 | DF | .~ With means effecting or assisting discharge of residue (e.g., endless belt) |
| 431 | DF | .~.~ Gaseous or liquid |
| 432 | DF | .~ With movable or manipulable means controlling escape of residue |
| 433 | DF | .~.~ Manually actuated |
| 434 | DF | DEFLECTOR |
| 434.1 | DF | .~ Having insulation |
| 434.2 | DF | .~ With heating or cooling means |
| 434.3 | DF | .~.~ Two confined fluids in indirect contact |
| 434.4 | DF | .~.~.~ Heat exchanger is part of separator or is contiguous therewith |
| 435 | DF | .~ Wear liners or surface characteristics (e.g., anti-erosion) |
| 436 | DF | .~ Removably supported deflector surface |
| 437 | DF | .~ With gas pump or fan |
| 438 | DF | .~.~ Within separator |
| 439 | DF | .~.~ Downstream of separator |
| 440 | DF | .~ Parallel and continuous nonplanar members (e.g., crimped, corrugated, curved) |
| 441 | DF | .~ Concentric, nested conduits with closed and open ends for flow reversal |
| 442 | DF | .~ Plural deflectors overlapped and spaced serially in gas flow |
| 443 | DF | .~.~ Plural deflectors in row across gas flow |
| 444 | DF | .~.~.~ Deflectors in alternate rows aligned (i.e., staggered) |
| 445 | DF | .~.~ Deflectors apertured or closely spaced from flow path wall |
| 446 | DF | .~.~.~ Space or aperture opposed by solid deflector surface |
| 447 | DF | .~ Fixed gas whirler or rotator means |
| 448 | DF | .~.~ With outlet gas conduit wall common to surrounding gas inlet or concentrate outlet or collector |
| 449 | DF | .~.~.~ Gas inlet and outlet have common wall |
| 450 | DF | .~.~.~ With outlet from collector |
| 451 | DF | .~.~.~.~ Tangential outlet pipe |
| 452 | DF | .~.~ With plural concentrate outlets in arcuate, axially extending whirl chamber wall |
| 453 | DF | .~.~ With concentrate outlet means in one of parallel plates mounting spaced whirler vanes |
| 454 | DF | .~.~ With tangential concentrate outlet pipe |
| 455 | DF | .~.~ Plural nonradial gas passages in peripheral wall (e.g., tuyere) |
| 456 | DF | .~.~ Helical vane or baffle within flow conduit |
| 457 | DF | .~.~.~ Between gas flow path wall and central core |
| 458 | DF | .~.~ Inflow pipe projects within casing |
| 459.1 | DF | .~.~ Tangential gas inlet opening in casing |
| 459.2 | DF | .~.~.~ Inclined inflow |
| 459.3 | DF | .~.~.~ Scroll |
| 459.4 | DF | .~.~.~ Inflow nozzle or vane |
| 459.5 | DF | .~.~.~ Varying inlet area |
| 460 | DF | .~.~.~ With tangential gas outlet |
| 461 | DF | .~.~ Continuous confined flow path |
| 462 | DF | .~ Impingement baffle |
| 463 | DF | .~.~ Conical with apex facing upstream |
| 464 | DF | .~.~ Corrugated, ribbed, crimped, or with projections |
| 465 | DF | .~.~ Planar |
| 466 | DF | WITH SEPARATED NONGASEOUS MATERIAL CONDUCTING OR TREATING MEANS |
| 467 | DF | WITH GAS FLOW EFFECTING MEANS |
| 467.1 | DF | .~ With heating or cooling means |
| 468 | DF | .~ Injector or jet pump type |
| 469 | DF | .~ Manual, weight, or traction operated gas pump |
| 470 | DF | .~ Plurality of impellers arranged in parallel or performing diverse functions |
| 471 | DF | .~ Impeller within or proximate to space encompassed by separating media |
| 472 | DF | .~ Upright or multichambered casing |
| 473 | DF | .~ Impeller upstream of separating media |
| 474 | DF | WITH PARTICULATE SOLIDS MOVEMENT DURING USE OR AGITATING MEANS THEREFOR |
| 475 | DF | WITH MEANS ADJUSTABLE TO CONTROL COMPACTNESS OF SEPARATING MEDIA |
| 476 | DF | WITH MEANS INTRODUCING GAS INTO MIDST OF SEPARATING MEDIA |
| 477 | DF | STRANDS OR BRISTLES WITH UNSUPPORTED OR FREE EXTREMITIES (E.G., BRUSH TYPE) |
| 478 | DF | WITH SEPARATE FLOW LINE ACCESS MEANS OR FILTER MEDIA PASSAGE MEANS OFFSET TO FLOW PATH |
| 479 | DF | .~ For discrete filter particles |
| 480 | DF | .~ Access means is clamping or coupling means for unit filter media |
| 481 | DF | .~ Unit transversely slidable through flow path |
| 482 | DF | TWO OR MORE SEPARATORS (E.G., SPACED FILTERS IN FLOW LINE OR CASING) |
| 482.1 | DF | .~ With heating or cooling means |
| 483 | DF | .~ With framework for edge to edge relation |
| 484 | DF | .~ Spaced for parallel flow of gas |
| 485 | DF | .~ Three or more serially spaced |
| 486 | DF | .~ Plies or layers of different characteristics or orientation |
| 487 | DF | .~.~ Differing mesh sizes |
| 488 | DF | .~.~ Variation in shape or size |
| 489 | DF | .~.~ Orientation of elements |
| 490 | DF | WITH MEANS SECURING OR RETAINING SEPARATING MEDIA |
| 490.1 | DF | .~ With heating or cooling means |
| 490.2 | DF | .~.~ Two confined fluids in indirect contact |
| 491 | DF | .~ Fastening means pierces or penetrates media |
| 492 | DF | .~ Internal frame or support means |
| 493 | DF | .~ Hinged or pivoted retainer or clamp on backing frame or in flow line |
| 494 | DF | .~ Grid or tray type for bottom support only |
| 495 | DF | .~ Unit or cohesive sheet-like media in flow line or frame |
| 496 | DF | .~.~ With adjustable connector or size adjusting means |
| 497 | DF | .~.~ Edge supporting or securing means for nonplanar sheet form filter (e.g., zigzag) |
| 498 | DF | .~.~.~ Spiral or cylindrical |
| 499 | DF | .~.~.~ With additional transversely arranged members |
| 500 | DF | .~.~ Flexible sheet type maintained in nonplanar configuration |
| 501 | DF | .~.~ With additional support means not positively engaged or joined to media (e.g., across face of filter) |
| 502 | DF | .~.~ Gasket or sealing means |
| 503 | DF | .~.~ Media within joinable or separable flow line sections |
| 504 | DF | .~.~ Aligned stop, media and removable retainer |
| 505 | DF | .~.~ Flow line end coupling (e.g., pipe end) |
| 506 | DF | .~.~.~ Flange or track on flow line for slidably retaining media |
| 507 | DF | .~.~.~ Resilient attaching means |
| 508 | DF | .~.~ Suspended or supported by bracket or from top of frame |
| 509 | DF | .~.~ Distorted media in flow line or resilient retaining means |
| 510 | DF | .~.~ Annular unit held between dished or plate-like end members for top and bottom support |
| 511 | DF | .~.~ Edge supported or secured only |
| 512 | DF | .~ Discrete fibrous or particulate solids |
| 513 | DF | .~.~ Resilient securing means |
| 514 | DF | .~.~ Fused or bonded to a supporting or backing member |
| 515 | DF | .~.~ Foraminous container |
| 516 | DF | .~.~ Held between openwork |
| 517 | DF | .~.~.~ Between telescoped or nonplanar retainers |
| 518 | DF | .~.~.~ Between perforated plates |
| 519 | DF | .~.~.~ Between reticulated end closures |
| 520 | DF | SPIRAL FILTER MEDIA |
| 521 | DF | ZIGZAG, CORRUGATED, OR CONICAL |
| 522 | DF | SPECIFIC MEDIA MATERIAL |
| 523 | DF | .~ Ceramic or sintered |
| 524 | DF | .~ With coating, impregnant, or bonding agent |
| 525 | DF | .~ Metal mesh or expanded material |
| 526 | DF | .~.~ Wadded or compressed |
| 527 | DF | .~ Fibrous or strand form |
| 528 | DF | .~.~ Organic (e.g., vegetable) |
| 529 | DF | MISCELLANEOUS (E.G., SHAPES) |
| ****************************** | ||
| DIGESTS | ||
| ****************************** | ||
| DIG 1 | DD | Graduated electrostatic field |
| DIG 2 | DD | Vacuum cleaner bags |
| DIG 3 | DD | Vacuum cleaner |
| DIG 5 | DD | Methods of making filter |
| DIG 6 | DD | Magnetic couplings |
| DIG 7 | DD | Black liquor treatment |
| DIG 8 | DD | Built-in vacuum cleaners |
| DIG 9 | DD | Radioactive filters |
| DIG 10 | DD | Residue burned |
| DIG 12 | DD | Pocket type filter |
| DIG 13 | DD | Polyurethane filters |
| DIG 14 | DD | Inertia separator |
| DIG 15 | DD | Cold traps |
| DIG 17 | DD | Compressed air water removal |
| DIG 18 | DD | Work bench |
| DIG 19 | DD | Crankcase ventilation |
| DIG 20 | DD | Spark arrester |
| DIG 21 | DD | Silencer cleaner |
| DIG 23 | DD | Steam separators |
| DIG 24 | DD | Viscous coated filter |
| DIG 25 | DD | Agglomerators |
| DIG 26 | DD | Bag coupling |
| DIG 27 | DD | Cleaners, liquid |
| DIG 28 | DD | Carburetor attached |
| DIG 29 | DD | Air curtains |
| DIG 30 | DD | Exhaust treatment |
| DIG 31 | DD | Filter frame |
| DIG 32 | DD | Gaseous fluid conveying |
| DIG 33 | DD | Gas mask canister |
| DIG 34 | DD | Indicator and controllers |
| DIG 35 | DD | Respirators and register filters |
| DIG 36 | DD | Kitchen hoods |
| DIG 37 | DD | Louvers |
| DIG 38 | DD | Tubular collector electrode |
| DIG 39 | DD | Electrets separator |
| DIG 42 | DD | Foam filter materials |
| DIG 43 | DD | Knitted filter mediums |
| DIG 44 | DD | Pile and pile-type filter mediums |
| DIG 45 | DD | Woven filter mediums |
| DIG 46 | DD | Spray booths |