US PATENT SUBCLASS 392 / 400
.~.~.~ In-line connected closed tank (i.e., pressurized)

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
386  DF  .~ Vaporizer {7}
394  DF  .~.~ Liquid evaporant (e.g., water, etc.) {6}
400.~.~.~ In-line connected closed tank (i.e., pressurized) {1}
401  DF  .~.~.~.~> With internal heating element

DEFINITION

Classification: 392/400

In-line connected closed tank (i.e., pressurized):

(under subclass 394) Subject matter wherein the liquid is contained in a vessel connected to a source of liquid supply, and from which the the vapor may be drawn off from an outlet or draw off pipe, and in which pressures above atmosphere may be maintained.

SEE OR SEARCH THIS CLASS, SUBCLASS:

325+, for line connected boiler.

449+, for fluid heating container or tank.

SEE OR SEARCH CLASS

159, Concentrating Evaporators,

22, for closed evaporating chambers.