US PATENT SUBCLASS 454 / 223
.~.~ With means for liquid contact


Current as of: June, 1999
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454 /   HD   VENTILATION

196  DF  MEANS COMBINED WITH WINDOW {12}
214  DF  .~ Having air passage between sill and bottom of sash {5}
223.~.~ With means for liquid contact


DEFINITION

Classification: 454/223

With means for liquid contact:

(under subclass 214) Subject matter comprising means for directly exposing the air to a liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

110, for a railcar, bus, or trailer in which the inlet air is exposed to a liquid.

157, for other vehicles in which the inlet air is exposed to a liquid.

291, for a floor-type register in a building where the inlet air is exposed to a liquid.

328, for other types of registers in a building where the inlet air is exposed to a liquid.

337, for inlet airways for static structures, in general (e.g., buildings), where the inlet air is exposed to a liquid.

SEE OR SEARCH CLASS 126, Stoves and Furnaces,

313, for air moistening attachments for stovepipes and subclass 508 for a fireplace with a room humidifier.

159, Concentrating Evaporators,

5, for concentrating evaporators designed to evaporate a liquid in film or thin layer form.

237, Heating Systems,

78+, for air moistening devices used in heating systems.

239, Fluid Sprinkling, Spraying, and Diffusing, for slow diffusers.

261, Gas and Liquid Contact Apparatus, appropriate subclasses for air moistening devices, per se, and

127+, for heating and cooling devices combined with moisteners for the air. Devices including significant ventilating structure and excluding specific heating or cooling structure will be found in this Class 454.

312, Supports: Cabinet Structure,

31+, for gas or vapor treatment of material contained within a cabinet structure.