US PATENT SUBCLASS 219 / 772
.~.~ Fluent material


Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

764  DF  CAPACITIVE DIELECTRIC HEATING {5}
770  DF  .~ Specific heating application {3}
772.~.~ Fluent material


DEFINITION

Classification: 219/772

Fluent material:

(under subclass 770) Subject matter wherein the heating application is to a fluid or liquid substance.

(1) Note. A fluent material is one that flows easily from container to container and may be a fine granular material, liquid, or air.

(2) Note. The dielectric heating must act directly on the fluent material. If the heating is inductive with an intermediate member such as a conduit or container which in turn heats the fluent material, see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

628, for inductively heating a fluent material through an intermediate member (heat exchange).

687, for a microwave fluid heater.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus, 451, for apparatus for sterilizing foods by electrical energy.

204, Chemistry: Electrical and Wave Energy,

155+, and 157.15+ for methods involving chemical reactions induced by radiant energy, and subclasses 193+ for the

corresponding apparatus.

250, Radiant Energy,

432, for methods and apparatus for subjecting fluent material to a radiant energy source.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

405+, for processes utilizing direct application of electical or wave energy to the work, especially subclasses 413+ for treating or producing a porous product, subclasses 437 for conveying or aligning particulate material, subclasses 454+ for direct application of fluid pressure, subclasses 464+ for extrusion molding, subclass 478 for injection molding.

392, Electric Resistance Heating Devices, appropriate subclasses for fluid heating by resistance heaters.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

21, and 22+ for processes of the class using microwave or other electrical or electromagnetic radiation and subclasses 186+ for apparatus for the chemical treatment of material using radiant electrical energy.