| Class 454 | VENTILATION |
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![[List of Pre Grant Publications for class 454 subclass 1]](../as.gif) | ![[List of Patents for class 454 subclass 1]](../ps.gif) | 1 | CHIMNEY OR STACK |
| | 2 |  Vehicle |
| | 3 | Chimneytop or stacktop structure (e.g., cowl) |
| | 4 |  Cap closure |
| | 8 | Inlet and outlet |
| | 10 | Inlet |
| | 12 | With means for mounting on brick-type chimney |
| | 15 | With rotary means in air current (e.g., fan, etc.) |
| | 16 |  Driven by external power source |
| | 17 | Having air current responsive adjustment means (e.g., wind vane, etc.) |
| | 18 | Cage-type blade set |
| | 20 | Having air current responsive adjustment means |
| | 21 | Wind vane |
| | 26 | Current regulator |
| | 27 | Having readily movable air current regulating means |
| | 32 | T-top |
| | 33 | Spiral or plural stacked rings |
| | 34 | Four-side outlets with shield |
| | 35 | Spaced cap |
| | 39 | Having air current inducing jet |
| | 41 | Having liquid drain |
| | 42 | Having internal air current guide |
| | 43 | Having flue heater |
| | 44 | Having lining or sleeve |
| | 48 | EXTERIOR VAULT OR MANHOLE COVER |
| | 49 | WORKSTATION VENTILATOR (E.G., HOOD, OFFTAKE, ETC.) |
| | 50 | Spray booth |
| | 56 | Covered workbench chamber (e.g., fume hood, etc.) |
| | 57 | Having air inlet separate from access opening |
| | 61 | Having outlet airway flow adjustment means |
| | 63 | Movable |
| | 66 | Having inlet airway |
| | 67 | Having canopy exhaust hood |
| | 68 | ELEVATOR |
| | 69 | VEHICLE (E.G., AUTOMOBILE, ETC.) |
| | 70 | Pressure regulation |
| | 75 | Having automatic control means |
| | 76 | Aircraft |
| | 78 | Waterborne |
| | 83 | Railcar, bus, or trailer |
| | 84 | Locomotive cab |
| | 87 | Sleeping car |
| | 88 | Freight |
| | 93 | Condensation preventer (e.g., defroster, etc.) |
| | 94 | Having exterior cap closure for vent |
| | 95 | Having window or entry-door ventilation structure |
| | 99 | Having forced recirculation |
| | 103 | Having both inlet and outlet airways |
| | 107 | Having inlet airway |
| | 108 | Including specific air distributor |
| | 110 | Liquid contact |
| | 111 | With deflecting separator-type filter |
| | 112 | With air pump |
| | 115 | Having outlet airway |
| | 118 | Freight |
| | 119 | Having external connection |
| | 120 | Seat structure |
| | 121 | Condensation preventer (e.g., defroster, etc.) |
| | 122 | Air directed between double paned window |
| | 123 | Air directed at window exterior |
| | 124 | Side or rear window |
| | 125 | Having sweeping air distributor |
| | 126 | Having means for combining heated and unheated air |
| | 127 | Having dashboard air distributor (e.g., for windshield, etc.) |
| | 128 | Means for open window (e.g., deflector, etc.) |
| | 129 | Sunroof |
| | 130 | Windshield or rear window |
| | 131 | At upper edge of sliding window |
| | 134 | Pivoted window |
| | 135 | Adjacent front edge of window |
| | 136 | Roof structure |
| | 139 | Having forced recirculation |
| | 141 | Having both inlet and outlet airways |
| | 143 | Having inlet airway |
| | 144 | Including duct extending along floor |
| | 145 | Selective inlet, outlet, and closure |
| | 146 | Including exterior cowl inlet |
| | 150 | Including exterior windshield inlet |
| | 151 | Including exterior rear or rear-side inlet |
| | 152 | Including specific air distributor |
| | 156 | With air treatment means |
| | 162 | Having outlet airway |
| | 166 | VEHICULAR TUNNEL |
| | 168 | MINE |
| | 169 | With partition means (e.g., brattice, etc.) |
| | 171 | Having inlet and outlet ductwork |
| | 172 | Having inlet ductwork |
| | 173 | STORAGE AREA FOR PERISHABLES |
| | 174 | Harvested crop ventilation |
| | 175 | Having perforated or slotted duct contacting crop |
| | 176 | Including insertion means |
| | 177 | Horizontal and vertical perforated or slotted ducts |
| | 179 | Horizontal duct |
| | 181 | With air pump |
| | 182 | Granular crop or corn ears |
| | 183 | Provision safe |
| | 184 | ELECTRONIC CABINET |
| | 185 | HOLLOW PARTITION |
| | 187 | CLEAN ROOM |
| | 188 | HAVING PROTECTING AIR CURRENT |
| | 189 | Surrounding protected area |
| | 190 | Including plural, layered currents |
| | 191 | Including suction outlet |
| | 192 | Including current adjusting mean |
| | 193 | Cabinet enclosure (e.g., display case, etc.) |
| | 194 | BLAST OR SHOCK WAVE PREVENTION |
| | 195 | MEANS COMBINED WITH DOOR |
| | 196 | MEANS COMBINED WITH WINDOW |
| | 197 | For bed or couch |
| | 198 | Condensation preventer |
| | 199 | Skylight |
| | 200 | With air pump |
| | 201 | Cooling air conditioner |
| | 202 | Having readily moveable flow control means |
| | 203 | With extensible side panel |
| | 204 | With mounting or support means |
| | 205 | Recirculation means |
| | 206 | With specific noise inhibiting structure |
| | 207 | With specific filtering means |
| | 208 | Propeller fan having rotary axis perpendicular to window |
| | 211 | Having air passage in sash |
| | 212 | Having air passage means within, attaching to, or replacing pane |
| | 213 | Having air passage at window top |
| | 214 | Having air passage between sill and bottom of sash |
| | 215 | Including wall sloping downward from window |
| | 216 | Including wall for upwardly deflecting inlet air |
| | 217 | Having adjustable angle or swingable mounting |
| | 219 | Having readily moveable air regulating means |
| | 220 | Having slidably interconnected sections |
| | 221 | Including louvers |
| | 222 | Including readily moveable air regulating means |
| | 223 | With means for liquid contact |
| | 224 | Having louvers |
| | 225 | Tilting pane window |
| | 226 | Having wind deflector |
| | 227 | Including backdraft preventer |
| | 228 | HAVING FORCED RECIRCULATION |
| | 229 | Including automatic control means |
| | 230 | Forced recirculation alone |
| | 231 | Having recirculating duct connecting upper and lower room air strata |
| | 232 | Having plural or branched recirculation ducts |
| | 233 | For use with heating or cooling means |
| | 234 | Including unitary housing having both inlet and outlet airways |
| | 236 | For use with heating and cooling means |
| | 237 | HAVING BOTH INLET AND OUTLET AIRWAYS |
| | 238 | Pressure regulation |
| | 239 | Including automatic control means |
| | 240 | With wind-operated air pump |
| | 241 | Including unitary inlet and outlet housing |
| | 242 | Rooftop |
| | 243 | Sleeved vent for ceiling, wall, or floor (e.g., thimble) |
| | 245 | Air distributor with return vent (e.g., register, etc.) |
| | 249 | With air pump |
| | 250 | Natural ventilation including air passage through rooftop (i.e., no air pump) |
| | 251 | With air pump means |
| | 254 | HAVING INLET AIRWAY |
| | 255 | Pressure regulation |
| | 256 | Including automatic control means |
| | 259 | Including backdraft preventer |
| | 260 | Through roof eaves or rafters |
| | 261 | Including structure for mixing plural air streams together |
| | 262 | And having specific noise inhibiting structure |
| | 263 | With shaped nozzle |
| | 265 | With readily movable air regulating louver, damper, or cover |
| | 269 | With air pump |
| | 270 | Sleeved vent for ceiling, wall, or floor (e.g., thimble) |
| | 275 | Including specific cover or shield for exterior vent opening |
| | 284 | Including specific air distributor (e.g., register, etc.) |
| | 285 | Sweeping type |
| | 286 | Having airway joint with ball or cylinder rotatable in a socket |
| | 287 | Baseboard type |
| | 289 | Floor type |
| | 292 | Ceiling type |
| | 293 | With light fixture |
| | 296 | Including perforated or porous element |
| | 299 | Including plural vanes |
| | 301 | Including elongated output slot |
| | 305 | Air nozzle |
| | 306 | Having air duct extending into room |
| | 307 | Having air deflecting wall extending into room |
| | 308 | Having vanes or elongated output slots extending radially |
| | 309 | Louvered air distributor |
| | 310 | Concentric |
| | 313 | Moveable |
| | 314 |  Aligned mutiple, movable sets of vanes |
| | 316 | Repositionable set |
| | 317 | Rotating disks |
| | 318 | Louver vanes form valve |
| | 319 | Plural vanes pivoting about individual axes |
| | 321 | In housing within room |
| | 322 | With adjustable valve |
| | 323 | Axially movable |
| | 324 | Sliding |
| | 325 | Plural blades pivoting along parrallel axes |
| | 327 | Valve opens by pivoting in upstream direction |
| | 328 | With means for liquid contact |
| | 329 | With air pump |
| | 330 | Having register box, frame, or grating |
| | 333 | With adjustable valve (e.g., damper, etc.) |
| | 337 | With means for liquid contact |
| | 338 | With air pump |
| | 339 | HAVING OUTLET AIRWAY |
| | 340 | Pressure regulation |
| | 341 | With air pump |
| | 342 | And having specific emergency smoke handling structure |
| | 343 | Having specific air pump actuator |
| | 344 | Pump induces draft in exit duct |
| | 345 | Having plural suction intakes |
| | 346 | Having vibration absorbing or preventing structure |
| | 347 | Having readily movable air regulating louver,damper, or cover |
| | 348 | Continuously horizontal damper panel |
| | 349 | Ceiling mounted air pump |
| | 350 | Wall mounted air pump |
| | 352 | Plural damper panel |
| | 353 | Including backdraft preventer |
| | 354 | Ceiling or wall mounted |
| | 355 | With movable access cover |
| | 356 | Having exterior neck with enlarged, weather resistant cover |
| | 357 | Having emergency smoke handling feature |
| | 358 | Having readliy movable air regulating louver, damper, or cover |
| | 365 | Along roof ridge |
| | 366 | Slant roof ventilator |
| | 367 | Having specific cover or shield for exterior vent opening |
| | 369 | FIRE DAMPER |
| | 370 | MISCELLANEOUS |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | VENTILATOR USING SOLAR POWER |
| | 901 | FOG DISPELLER |
| | 902 | AIR RAID SHELTER VENTILATION |
| | 903 | FLEXIBLE DUCTS USED FOR CARRYING AIR |
| | 904 | MAGNETIC MEANS TO HOLD A DAMPER CLOSED |
| | 905 | BLACK OUT MEANS |
| | 906 | NOISE INHIBITING MEANS |
| | 907 | SEAT |
| | 908 | HAVING ROTARY RETARDER |
| | 909 | RADON PREVENTION |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |