|  | H |
SECTION H — ELECTRICITY

|  | H01 |
BASIC ELECTRIC ELEMENTS

|  | H01 |
Note(s) Processes involving only a single technical art, e.g. drying, coating, for which provision exists elsewhere are classified in the relevant class for that art.

|  | H01G |
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, OR LIGHT-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric Fulltext... Hierarchy... Expanded...H01B 3/00)

|  | H01G 1/00 |
Details of fixed capacitors (electrolytic capacitors Fulltext... Hierarchy... Expanded...H01G 9/00)

|  | H01G 1/005 |
· | Electrodes [2]

|  | H01G 1/01 |
· · | Selection of materials for electrodes [2]

|  | H01G 1/013 |
· · | Form of self-supporting electrodes [2]

|  | H01G 1/015 |
· · | Form of non-self-supporting electrodes [2]

|  | H01G 1/017 |
· · | Special provision for self-healing [2]

|  | H01G 1/02 |
· | Mounting; Housing; Enclosing; Filling the housing or enclosure

|  | H01G 1/03 |
· · | Adaptations for mounting on a chassis

|  | H01G 1/035 |
· · | Adaptations for mounting on a printed-circuit support

|  | H01G 1/04 |
· | Distinguishing marks, e.g. colour coding

|  | H01G 1/06 |
· | Electrostatic or electromagnetic shielding

|  | H01G 1/08 |
· | Cooling arrangements; Heating arrangements; Ventilating arrangements

|  | H01G 1/10 |
· | Protection against corrosion

|  | H01G 1/11 |
· | Protection against electric or thermal overload (by cooling Fulltext... Hierarchy... Expanded...H01G 1/08)

|  | H01G 1/13 |
· | Arrangements for preventing discharge from edges of electrodes

|  | H01G 1/14 |
· | Terminals

|  | H01G 1/147 |
· · | Electrically connecting two or more electrodes of a stacked capacitor; Electrically connecting the layers of a rolled electrode [2]

|  | H01G 1/153 |
· · | Leading through the housing, i.e. lead-through [2]

|  | H01G 1/16 |
· | Circuits for modifying, or compensating for, electric characteristics of capacitors (impedance networks Fulltext... Hierarchy... Expanded...H03H)

|  | H01G 4/00 |
Capacitors with invariable capacitance; Processes of their manufacture (electrolytic capacitors Fulltext... Hierarchy... Expanded...H01G 9/00) [2]

|  | H01G 4/02 |
· | having air, gas, or vacuum as the dielectric [2]

|  | H01G 4/04 |
· | having a liquid dielectric [2]

|  | H01G 4/06 |
· | having a solid dielectric (layered products in general Fulltext... Hierarchy... Expanded...B32B, e.g. Fulltext... Hierarchy... Expanded...B32B 15/00) [2]

|  | H01G 4/08 |
· · | having an inorganic dielectric [2]

|  | H01G 4/10 |
· · · | with metal-oxide dielectric [2]

|  | H01G 4/12 |
· · · | with ceramic dielectric [2]

|  | H01G 4/14 |
· · | having an organic dielectric [2]

|  | H01G 4/16 |
· · · | of fibrous material, e.g. paper [2]

|  | H01G 4/18 |
· · · | of synthetic material, e.g. derivatives of cellulose (Fulltext... Hierarchy... Expanded...H01G 4/16 takes precedence) [2]

|  | H01G 4/20 |
· · | with the dielectric comprising at least two materials [2]

|  | H01G 4/22 |
· · · | impregnated [2]

|  | H01G 4/24 |
· · | the dielectric being adapted for self-healing [2]

|  | H01G 4/26 |
· | Folded capacitors [2]

|  | H01G 4/28 |
· | Tubular capacitors [2]

|  | H01G 4/30 |
· | Stacked capacitors [2]

|  | H01G 4/32 |
· | Wound capacitors [2]

|  | H01G 4/34 |
· | with means for correcting the capacitance value [2]

|  | H01G 4/36 |
· | with temperature compensation [2]

|  | H01G 4/38 |
· | Multiple capacitors, i.e. structural combinations of invariable capacitors [2]

|  | H01G 4/40 |
· | Structural combinations of invariable capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations (thin- or thick-film circuits Fulltext... Hierarchy... Expanded...H01L 27/00) [2]

|  | H01G 4/42 |
· | Feed-through capacitors or anti-noise capacitors [2]

|  | H01G 5/00 |
Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture (capacitors with potential-jump or surface barrier Fulltext... Hierarchy... Expanded...H01L 29/00) [2]

|  | H01G 5/01 |
· | Details

|  | H01G 5/015 |
· · | Current collectors

|  | H01G 5/02 |
· | having air, gas, or vacuum as the dielectric (using displacement of liquid or solid dielectric Fulltext... Hierarchy... Expanded...H01G 5/20, Fulltext... Hierarchy... Expanded...H01G 5/26)

|  | H01G 5/04 |
· · | using variation of effective area of electrode

|  | H01G 5/06 |
· · · | due to rotation of flat or substantially flat electrodes

|  | H01G 5/08 |
· · · · | becoming active in succession

|  | H01G 5/10 |
· · · | due to rotation of helical electrodes

|  | H01G 5/12 |
· · · | due to rotation of part-cylindrical, conical, or spherical electrodes

|  | H01G 5/14 |
· · · | due to longitudinal movement of electrodes

|  | H01G 5/16 |
· · | using variation of distance between electrodes

|  | H01G 5/18 |
· · · | due to change in inclination, e.g. by flexing, by spiral wrapping

|  | H01G 5/20 |
· | having a liquid dielectric

|  | H01G 5/22 |
· | having a solid dielectric

|  | H01G 5/24 |
· · | with movable electrodes

|  | H01G 5/26 |
· · | with movable dielectric

|  | H01G 5/28 |
· | with one or more electrodes consisting of displaceable liquid or conducting powder, e.g. mercury

|  | H01G 5/34 |
· | with temperature compensation

|  | H01G 5/36 |
· | with means for correcting the capacitance characteristic

|  | H01G 5/38 |
· | Multiple capacitors, e.g. ganged

|  | H01G 7/00 |
Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture (capacitors with potential-jump or surface barrier Fulltext... Hierarchy... Expanded...H01L 29/00) [2]

|  | H01G 7/02 |
· | Electrets, i.e. having a permanently-polarised dielectric

|  | H01G 7/04 |
· | having a dielectric selected for the variation of its permittivity with applied temperature

|  | H01G 7/06 |
· | having a dielectric selected for the variation of its permittivity with applied voltage, i.e. ferroelectric capacitors (electrets Fulltext... Hierarchy... Expanded...H01G 7/02)

|  | H01G 9/00 |
Electrolytic capacitors, rectifiers, detectors, switching devices, or light-sensitive devices; Processes of their manufacture [2]

|  | H01G 9/02 |
· | Diaphragms; Separators; Selection of materials for use as electrolytes or absorbents (electrolytic or electrophoretic processes, apparatus therefor Fulltext... Hierarchy... Expanded...C25; for primary, secondary, or fuel cells Fulltext... Hierarchy... Expanded...H01M)

|  | H01G 9/04 |
· | Electrodes

|  | H01G 9/05 |
· · | consisting of tantalum, niobium, or sintered material; Combinations of such electrodes with solid semi-conductive electrolytes, e.g. manganese dioxide

|  | H01G 9/06 |
· · | Mounting in containers

|  | H01G 9/08 |
· | Containers

|  | H01G 9/10 |
· · | Sealing, e.g. of lead-in wires

|  | H01G 9/12 |
· · | Vents or other means allowing expansion

|  | H01G 9/14 |
· | Circuits for modifying, or compensating for, electric characteristics of electrolytic capacitors (impedance networks Fulltext... Hierarchy... Expanded...H03H)

|  | H01G 9/16 |
· | specially for use as rectifiers or detectors (Fulltext... Hierarchy... Expanded...H01G 9/22 takes precedence)

|  | H01G 9/18 |
· | Self-interrupters

|  | H01G 9/20 |
· | Light-sensitive devices

|  | H01G 9/22 |
· | Devices using combined reduction and oxidation, e.g. redox arrangement, solion

|  | H01G 9/24 |
· | Processes of manufacture [2]

|  | H01G 13/00 |
Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01G 4/00-H01G 9/00 [2]

|  | H01G 13/02 |
· | Machines for winding capacitors (winding in general Fulltext... Hierarchy... Expanded...B65H) [2]

|  | H01G 13/04 |
· | Drying (in general Fulltext... Hierarchy... Expanded...F26B); Impregnating [2]

|  | H01G 13/06 |
· | with provision for removing metal surfaces [2]