US PATENT SUBCLASS 392 / 471
.~.~ Combined liquid flow heater and pump unit

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

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
465  DF  .~ Continuous flow type fluid heater {12}
471.~.~ Combined liquid flow heater and pump unit

DEFINITION

Classification: 392/471

Combined liquid flow heater and pump unit:

(under subclass 465) Subject matter wherein the fluid flow heater includes a hydraulic machine for creating a continuous flow of liquid combined with the fluid heating means in a common enclosure.

(1) Note. The pump may be a mechanical pump, vapor pump, ejector pump, etc.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus,

279+, for infusers.

165, Heating Exchange,

108, for recirculation and subclasses 120+ for impeller or conveyor moving exchange material. 166, Wells,

62, for eduction pump or plunger in well.

222, Dispensing,

146.1+, for heating or cooling means.

239, Fluid Sprinkling, Spraying, and Diffusing,

128+, for heating or cooling means for these systems or system fluid.

417, Pumps,

208, for pumps by heating of pumped fluid.