| Class D23 | ENVIRONMENTAL HEATING AND COOLING; FLUID HANDLING AND SANITARY EQUIPMENT |
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![[List of Pre Grant Publications for class D23 subclass 200]](../as.gif) | ![[List of Patents for class D23 subclass 200]](../ps.gif) | 200 | FLUID HANDLING OR TREATMENT EQUIPMENT |
| | 201 |  Fountain |
| | 202 | Storage tank |
| | 203 |  Underground type (e.g., septic tank, etc.) |
| | 204 | Substantially spherical |
| | 205 | Cylindrical |
| | 206 | Element or attachment (1) |
| | 207 | Treatment |
| | 208 | Sanitary fixture type (e.g., deodorant holder, chemical dispenser, etc.) |
| | 209 | Filter or strainer (2) |
| | 211 | Lubricating can |
| | 211.1 | Gasoline or fuel type can |
| | 212 | Watering can (3) |
| | 213 | Dispersal (i.e., sprayer, fogger, nozzle, aerator, etc.) (4) |
| | 214 | Sprinkler for lawn, agricultural irrigation or fire extinguishing (5) |
| | 215 |  Simulative |
| | 216 | Oscillating |
| | 217 | With surface penetration means |
| | 218 | Recessed type |
| | 219 | Tracking type (i.e., sprinkler follows hose, etc.) |
| | 220 | Plural rotating arms |
| | 221 | Base |
| | 222 | Simulative |
| | 223 | Hand held or controlled type |
| | 224 | Direct piston or plunger actuation (i.e., without trigger or lever) |
| | 225 | With material container (6) |
| | 226 | Trigger, lever or button actuation |
| | 228 | Combined |
| | 229 | Provision for adjustment of spray pattern or flow |
| | 230 | Ball and socket joint for adjustment |
| | 231 | Hand or foot operated pump or well curb |
| | 233 | Valve or body therefor |
| | 234 | Hydrant |
| | 235 | Pressure regulating or relieving |
| | 236 | Ballcock or float type |
| | 237 | Check |
| | 238 | Faucet fixture (7) |
| | 239 | Combined (e.g., with dishwashing brush, support therefor, etc.) |
| | 241 | Plural flow controls or provision therefor |
| | 244 | Gate or butterfly type |
| | 245 | Manual or visible mechanical control or with provision therefor (e.g., handle, lever, etc.) |
| | 247 | Symmetrical on two or more axes |
| | 248 | Symmetrical on one axis |
| | 249 | Element or attachment |
| | 259 | Fitting (10) |
| | 270 | SANITARY FIXTURE OR HOUSING THEREFOR |
| | 271 | Combined (13) |
| | 272 | Sink and stove or refrigerator |
| | 273 | Sink, water closet and bathing unit |
| | 274 | Sink and water closet or urinal |
| | 275 | Bathtub and shower enclosure |
| | 276 | Sitz bath (14) |
| | 277 | Bathtub (15) |
| | 283 | Shower or shower receptor (17) |
| | 284 | Sink |
| | 285 | Simulative, or with radiating striations |
| | 286 | With cabinet or with provision for storage |
| | 287 | With drainboard (i.e., adjacent recessed inclined surface) |
| | 288 | Corner type |
| | 289 | Shampoo type (e.g., with depression on rim for neck, etc.) |
| | 290 | Plural |
| | 291 | With integral spout or hooded overflow |
| | 292 | Unitary singular support column |
| | 293.1 | Symmetrical (16) |
| | 295 | Water closet, bidet or bowl therefor |
| | 296 | Infant training type |
| | 298 | Simulative |
| | 299 | Self-contained (i.e., chemical or portable type) |
| | 300 | Wall mounted |
| | 301 | With water tank (18) |
| | 302 | Urinal (19) |
| | 303 | Element or attachment (20) |
| | 314 | HEATING OR COOLING |
| | 315 | Sauna or steam bath type |
| | 316 | Liquid immersion type, e.g., aquarium, swimming pool, etc. (24) |
| | 317 | Mobile space heater, e.g., wheeled blower type, etc. |
| | 318 | Domestic water heater or boiler |
| | 324 | Vehicle heating or cooling |
| | 328 | Combined heating and cooling or with diverse element |
| | 329 | Furnace |
| | 330 | Radiator, e.g., spaced enclosed heat exchangers |
| | 332 | Portable |
| | 333 | Air conditioner |
| | 334 | Animal or agricultural heater |
| | 335 | Heating element protected by grille, grid, etc. |
| | 336 | Circular or cylindrical housing |
| | 337 | Pedestal or pivoting head mount |
| | 338 | Liquid fuel type, e.g., kerosene, etc. |
| | 339 | Gas fired type |
| | 340 | Quartz type |
| | 341 | Element |
| | 342 | Stabile space heater |
| | 351 | Air conditioner (27) |
| | 355 | Air treatment |
| | 356 | Humidifier |
| | 359 | Dehumidifier |
| | 360 | Vaporizer |
| | 364 | Air cleaner |
| | 366 | Deodorizer or ozonizer (28) |
| | 367 | Simulative |
| | 368 | With distinct hanger or suction cup |
| | 369 | Activated by moveable cover or by piercing |
| | 370 | Fan or ventilator |
| | 371 | Exhaust type |
| | 377 | Blade unit rotates on vertical axis |
| | 378 | Floor type on vertically elongated stand |
| | 379 | With exposed blade |
| | 380 | Plural impeller units, e.g., side by side, etc. |
| | 381 | Wire protective grille |
| | 383 | Blower |
| | 384 | Bellows |
| | 385 | Wall or ceiling mount (24) |
| | 386 | Element or attachment, not elsewhere specified |
| | 387 | Flow director (29) |
| | 395 | Radiator cover or cabinet |
| | 396 | Stoker |
| | 397 | Grate |
| | 398 | Fireplace type (30) |
| | 399 |  Hollow tube circulator with blower unit |
| | 400 | Perforated or expanded metal |
| | 401 | Enclosed four sides |
| | 402 | Stove or furnace type |
| | 403 | Fireplace element not elsewhere specified |
| | 404 | Mantle or frame for opening |
| | 405 | Lining or enclosure for opening (31) |
| | 407 | Andiron or fire dog |
| | 409 | Artificial log burner element |
| | 410 | Coal scuttle or wood holder |
| | 411 | Fan element |
| | 415 | Burner or heater coil |
| | 420 | Ash pan or sifter |
| | 421 | Valve or control |
| | 422 | Fire brick |
| | 499 | MISCELLANEOUS |
| SEARCH NOTES FOR CLASS D23 | ||
| (1) For cap or plug, see subclass 260. For underwater breathing apparatus, valves, or regulators, see D24-110.5+. |
| (2) For filter disclosed as part of a faucet, see subclasses 238+ For aerator, see subclass 213. | ||
| (3) For battery water dispenser, see subclass 200. |
| (4) For aerator disclosed as part of a faucet, see subclasses 238+. For shower head disclosed with shower unit structure, see subclass 283. | ||
| (5) For hose nozzle or hand held sprayer, see subclasses 223+. For time or control, see subclass 245. |
| (6) Container must be shown in full or in broken lines. | ||
| (7) If disclosed with sink, classified in subclasses 284+. |
| (8) For gauge or dial, per se, see Class D10. | ||
| (9) Includes spout with provision for diverter control. If provision is made for flow control handle, patent is classified as faucet in subclasses 238+. |
| (10) Includes overflow fitting. | ||
| (11) Includes sink stopper. |
| (12) Includes urinal screen. | ||
| (13) For faucet combined with sink and/or cabinet, see subclasses 284+. |
| (14) For bidet, see subclass 295. | ||
| (15) For front panel or sub-assembly, see subclasses 304+. |
| (16) Exclusive of drain or overflow opening. | ||
| (17) For bathtub surround, see subclass 305. For shower head, per se, or with associated plumbing only (such as valve), see subclass 213. |
| (18) For tank, per se, see subclass 313. | ||
| (19) For water closet attachment type, see subclass 310. |
| (20) Includes leg or support For overflow fitting, see subclass 261 For drain stopper or screen see, respectively, subclasses 260 and 261. | ||
| (21) For drain stopper or screen see, respectively, subclasses 260 and 261. |
| (22) For drain screen, see subclass 261. | ||
| (23) For infant training seat, see subclass 296. For seat lifter handle, see D8-307. |
| (24) Includes element. | ||
| (25) Stoves with upper and lower doors, e.g., for fuel supply and ash removal are included in this subclass. |
| (26) Highly surface ornamented parlor or Franklin-type stoves of the late 19th and early 20th century variety. Ornamentation usually formed as part of the casting. | ||
| (27) Includes cooling tower. |
| (28) Includes all air freshener articles. | ||
| (29) See air conditioner element, subclass 354 for additional flow director panels. |
| (30) Search subclass 405 for grate combined with interior lining. | ||
| (31) Decorative panel for season use. |