US PATENT SUBCLASS 204 / 164
.~ Electrostatic field or electrical discharge

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
164.~ Electrostatic field or electrical discharge {6}
165  DF  .~.~> Organic {3}
173  DF  .~.~> Carbon
174  DF  .~.~> Sulfur-oxygen compounds
175  DF  .~.~> Hydrogen peroxide
176  DF  .~.~> Ozone
177  DF  .~.~> Nitrogen compounds {1}

DEFINITION

Classification: 204/164

Chemical processes which have for their purpose the preparation of compounds or elements through chemical reactions brought about by the agency of electrical energy within an electrostatic field or a field within which electrical discharging takes place. For example, the conversion of the surface of a polymeric material to produce a film thereon. This group includes both the synthetic production of compounds or elements and, likewise the chemical modification or chemical purification of compounds or elements, making use of electrical energy to effect the chemical changes in such processes. The processes falling within this group of subclasses are those whose purpose is for the production of compounds or elements by chemical reaction, but not those wherein a material or composition is treated, such as a metal, tobacco, foods, beverages, leather and the like, and in which a chemical change may be brought about. This group of subclasses likewise includes processes wherein one or both of the reactants are subjected to an

electrostatic field or electrical discharge for the purpose of activation and the desired reaction is effected by mere mixing while such reactant or reactants are in the activated condition. This usually consists of a step of ionization followed immediately by mixture with another ionized or unionized substance, the reaction following as a matter of course due to the condition of the mixed reactants.

(1) Note. For chemical processes brought about in a zone wherein both a magnetic field and discharging occurs, see this class, subclass 156.

(2) Note. For electric charge generating or conducting apparatus (ionizing devices) see Class 361, Electricity: Electrical Systems and Devices, subclasses 230+.

SEE OR SEARCH CLASS

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

186.04+, for corresponding apparatus.

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the use of electrostatic field or electrical discharges in the destruction of hazardous or toxic waste.