US PATENT SUBCLASS 312 / 31.01
.~ By wetted surface exposed to material chamber and continuously contacted by unconfined gas

Current as of: June, 1999
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312 /   HD   SUPPORTS: CABINET STRUCTURE

31  DF  WITH GAS OR VAPOR TREATMENT OF MATERIAL {3}
31.01.~ By wetted surface exposed to material chamber and continuously contacted by unconfined gas {2}
31.02  DF  .~.~> Knockdown
31.03  DF  .~.~> Moistened chamber wall {2}

DEFINITION

Classification: 312/31.01

(under subclass 31) Devices having liquid wetted means exposed to, or forming, a material holding chamber, so that the liquid is continuously in contact with either an unconfined gas that contacts the material in the chamber or with an unconfined gas exterior to the chamber and a gas that contacts the material in the chamber. The liquid supply receptacle may also contain ice, and the liquid wetted means may be a pan of water.

SEE OR SEARCH THIS CLASS, SUBCLASS:

31.1+, for liquid wetted means continuously exposed to the atmosphere because a small area has been left exposed for the purpose of readily renewing the liquid charge.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

72, for forced air circulators or heaters or both included in devices having a wetted surface exposed to material chamber and continuously contacted by an unconfined gas.

62, Refrigeration, 287, for wetted wall type refrigerators and subclasses 304+ for cooling apparatus utilizing gas-liquid contact means wherein the treating and contacting fluid does not contact the material within a cooled space.

454, Ventilation,

110, 157, 223, 291, 328, and 337 for ventilation devices which humidify the air.