US PATENT SUBCLASS 96 / 15
ELECTRIC FIELD SEPARATION APPARATUS (E.G., ELECTRICAL PRECIPITATOR, ELECTROSTATIC TYPE, ETC.)

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

15ELECTRIC FIELD SEPARATION APPARATUS (E.G., ELECTRICAL PRECIPITATOR, ELECTROSTATIC TYPE, ETC.) {17}
16  DF  .~> And radioactive or ultraviolet light ionizer
17  DF  .~> Electric charge produced by friction (e.g., by gas flow, etc.)
18  DF  .~> With control means responsive to sensed condition {4}
25  DF  .~> With programmed, cyclic, or time responsive control means
26  DF  .~> With indicating, signal, or alarm means
27  DF  .~> With means to add charged solid or liquid particles to gaseous fluid mixture
28  DF  .~> Electrode cleaner, apparatus part flusher, discharger, or wet collector (e.g., wet film electrode, etc.) {6}
52  DF  .~> With means for vapor or liquid contact (e.g., for gas separation, cooling, conditioning, etc.) {1}
54  DF  .~> Having alternating electrostatic field
55  DF  .~> And serially arranged nonelectrical separator {3}
60  DF  .~> Including gas flow distribution means {4}
74  DF  .~> With nonelectrical gas treating or conditioning means
75  DF  .~> Plural diverse electric fields {2}
80  DF  .~> With details of voltage supply means or circuitry {2}
83  DF  .~> Electrode retaining or supporting means {6}
95  DF  .~> Ionizing electrode details (e.g., coil, mat, corona suppression, etc.) {2}
98  DF  .~> Collecting electrode details (e.g., sheet type, running length web, etc.) {2}

DEFINITION

Classification: 96/15

ELECTRIC FIELD SEPARATION APPARATUS (E.G., ELECTRICAL PRECIPITATOR, ELECTROSTATIC TYPE, ETC.):

(under the class definition) Apparatus in which a constituent of the fluid mixture is separated or precipitated by an electric field or discharge means and includes an electrode arranged to emit, collect, or control movement of charged particles (e.g., electrical or Cottrell precipitators, electrostatic type, etc.); and subcombinations thereof (e.g., electrodes for such apparatus, etc.).

(1) Note. Treatment by an electric field to agglomerate or coalesce constituents of the fluid mixture, where no provision for separation or precipitation, as such, is described, is classified in this subclass if the disclosure relates to gas separation and the ultimate use of the apparatus is for gas separation.

(2) Note. This subclass is the collecting home for means for insuring nonconducting properties of the apparatus, other than mere conductor sheath. Thus, patents claiming such means with only nominal recitation of other features are classified in this subclass rather than the indented subclasses, and other patents with significant disclosures of such means are cross-referenced to this subclass. However, patents concerning insulation and having a disclosure or claims pertaining to electrode retaining or supporting means are not placed in this subclass but are found in subclass 88.

(3) Note. The line between Class 96 and the applicable electrical classes is based on the amount of disclosure. If there is a general utility or multiple purpose disclosure and the claims are not limited to electric field separation apparatus for this class (such as by including precipitator electrodes), then classification is in the appropriate other class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, for electric field separation apparatus combined with magnetic separating means.

88, for insulation features combined with electrode retaining or supporting means.

223+, for gas separation apparatus combined with sterilizing means.

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

57+, for processes involving an electric field for separating fluid mixtures.

174, Electricity: Conductors and Insulators,

137+, for insulators.

204, Chemistry: Electrical and Wave Energy, appropriate subclasses; particularly 660+ for similar apparatus dealing with the electrical separation of liquids and degasification of liquid aided by electrical discharge involving the conversion of constituents to other compounds. When such chemical conversion is in doubt, placement of electrical apparatus for degasifying liquid is proper for Class 96.

210, Liquid Purification or Separation,

243, for liquid separation apparatus with electrical insulating or electricity discharging means.

250, Radiant Energy,

281+, for processes and apparatus for separating ionized material based on the differing charge-to-mass ratios of such material.

313, Electric Lamp and Discharge Devices, appropriate subclasses for electric space discharge devices, especially 231.01+, for such discharge devices which have means for passing a fluent material between the discharge electrodes.

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for miscellaneous systems for supplying electrical energy to electric space discharge devices of the gas or vapor ionization type.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses and particularly

530+, for miscellaneous circuits having a specific source of supply or bias voltage.

361, Electricity: Electrical Systems and Devices,

227+, for particle charging means and 230+ for ionizing means which are not solely disclosed in connection with the separation of a gaseous fluid mixture.

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

22+, for processes of disinfecting, deodorizing, preserving, or sterilizing using direct contact with electrical or electromagnetic radiation, and subclasses 186.04+ for electrostatic field or electrical discharge apparatus for chemical treatment not combined or associated with gas separation apparatus of the type found in Class 96, subclasses 223+. Also, see the search class note to Class 422 at the beginning of this class.