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| You are viewing a USPC Schedule. |
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| Class 392 | ELECTRIC RESISTANCE HEATING DEVICES |
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| This Class 392 is considered to be an integral part of Class 219 (see the Class 219 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 219. | ||
| HEATING DEVICES (CLASS 219 SUBCLASS 200) |
![[List of Pre Grant Publications for class 392 subclass 301]](../as.gif) | ![[List of Patents for class 392 subclass 301]](../ps.gif) | 301 |  Borehole type |
| | 302 |  With heat exchange fluid |
| | 303 | With vapor generator |
| | 304 | Heating element surrounding delivery pipe |
| | 305 | Suspended by cable in well |
| | 306 | Plural separate heating devices |
| | 307 | Combined with nonelectric heating means (e.g., gas, etc.) |
| | 311 | Fluid-in-circuit type heater |
| | 312 | Method |
| | 313 | Portable |
| | 314 | Continuous flow of fluid being heated |
| | 315 |  With means to adjust current path between electrodes |
| | 318 | Current control means |
| | 319 | With discharge member for line or tank |
| | 320 | Tube or pipe forms flow path |
| | 322 | With reservoir or tank |
| | 324 | Steam or vapor generator |
| | 325 | Line connected boiler |
| | 326 |  Control of electrode immersion level |
| | 329 | With means to adjust current path between elctrodes |
| | 331 | Electrode arrangement |
| | 333 | Manually filled tank or container |
| | 338 | Electrode details |
| | 339 | With heat storage means |
| | 340 | Method |
| | 341 | For fluid heating (e.g., gas or liquid, etc.) |
| | 342 | For vaporization |
| | 343 | For subsequent heating by radiation |
| | 344 | For subsequent heating by convection |
| | 345 | Means to control heating accumulating medium |
| | 346 | Heat accumulating medium details |
| | 347 | Convection space heater |
| | 348 | Artificial fire |
| | 349 | Central heating type |
| | 351 | Floor furnace type |
| | 352 | Baseboard type |
| | 354 | With intermediate heat absorber |
| | 360 | Forced air type |
| | 361 | Heating attachment for fan |
| | 362 | Fan with heated blades |
| | 363 | Wall mounted |
| | 364 | Ceiling mounted |
| | 365 | Portable |
| | 370 | Wall mounted |
| | 372 | Mounted in or on window or door |
| | 373 | Portable |
| | 375 | Combined with radiation |
| | 379 | Concentrated heated air stream (i.e., blast) |
| | 386 | Vaporizer |
| | 387 | Method |
| | 388 | For metal vapor deposition |
| | 390 | With disposable evaporant cartridge or container |
| | 391 | By radiant heat source |
| | 392 | Wall mounted |
| | 393 | By light bulb heat source |
| | 394 | Liquid evaporant (e.g., water, etc.) |
| | 407 | Radiant heater |
