US PATENT SUBCLASS 219 / 764
CAPACITIVE DIELECTRIC HEATING

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

764CAPACITIVE DIELECTRIC HEATING {5}
765  DF  .~> Bonding {4}
770  DF  .~> Specific heating application {3}
774  DF  .~> With workpiece support {2}
778  DF  .~> With power supply system {1}
780  DF  .~> Specific electrode configuration

DEFINITION

Classification: 219/764

CAPACITIVE DIELECTRIC HEATING:

(under the class definition) Subject matter for electric heating whereby a normally insulating (nonconducting) material or object interacts between conducting surfaces having an alternating electric field thereby causing internal energy losses in the material or object and a rise in temperature.

(1) Note. Typical dielectric materials are air, wood, plastic, ceramic, mica, and wax-impregnated paper. The internal losses are from the molecular friction of the dielectric material.

(2) Note. A conductive dielectric heater with means to heat the electrodes to prevent condensation thereon is classified herein.

(3) Note. A conductive dielectric heating apparatus with means to prevent dissipation of heat from the work by simultaneously heating the work holder or support is classified herein.

(4) Note. For claims reciting both food (edible) and nonfood (nonedible) heating by an electric heating device or method, classification is proper for Class 219. If the claims recited are limited to food (edible) heating methods, composition, product, or processes, classification is proper for Class 426.

(5) Note. A capacitive dielectric heater with a diverse

heater included is classified herein. If the diverse heater is an inductive or microwave type, classification is above.

SEE OR SEARCH CLASS 34, Drying and Gas or Vapor Contact With Solids,

1+, for material subjected to electromagnetic energy.

99, Foods and Beverages: Apparatus,

358, for cooking with an electrode-type heater; subclass 451 for treating food by electric, radiant, or vibrational energy; and digest 14 for induction heating food materials.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

272.2+, for methods of and subclasses 379.6+ for means of surface bonding and/or assembly thereof with direct application of electrical, magnetic, or radiant energy to work.

204, Chemistry: Electrical and Wave Energy,

193+, for apparatus for treating substances with electrical or radiant energy to effect a chemical change.

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

402+, for processes of heating a mold utilizing direct application of electrical or wave energy, digest 46 for molding processes utilizing electrical heat, and subclasses 405+ for processes utilizing direct application of electrical or wave energy to the work.

361, Electricity: Electrical Systems and Devices,

271+, for electrostatic capacitors. 425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

174+, for a device with means for applying electrical or wave energy directly to work.

426, Food and Edible Material: Processes, Compositions, and Products,

237+, for the direct application of electrical or wave energy to food material.

600, Surgery,

9+, for a magnetic field applied to the body for therapeutic purposes.

606, Surgery,

27+, and 32+ for devices for heat or electrical applications.

607, Surgery: Light, Thermal, and Electrical Application,

1+, for light and thermal application to the body and subclasses 114 through 156 for an electrical energy applicator.