IPC 7 English version H01J 11/00-H01J 19/82

IPC ⁷ English version

H01J 5/00 - H01J 9/52

H01J01100-H01J01982

H01J 21/00 - H01J 25/78

SECTION H – ELECTRICITY

H 01

BASIC ELECTRIC ELEMENTS

H 01 J

ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; arc lamps with consumable electrodes H05B; particle accelerators H05H)

11/

Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel (lamps H01J 65/00)

11/

Details, e.g. gas filling, shape of vessel

11/

Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

13/

Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes (lamps H01J 61/00)

13/

Details

13/

Main electrodes; Auxiliary anodes

13/

Cathodes

13/

characterised by the material

13/

Containers for the liquid pool; Arrangement or mounting thereof

13/

Positioning or moving the cathode spot on the surface of the pool

13/

Cooling, heating, circulating, filtering, or controlling level of the liquid

13/

Anodes; Auxiliary anodes for maintaining the discharge (screens H01J 13/22)

13/

Cooling or heating of anodes

13/

Control electrodes, e.g. grid (for igniting arrangements H01J 13/34)

13/

Screens, e.g. for preventing or eliminating arcing-back

13/

Vessels; Containers

13/

Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

13/

Selection of substances for gas filling; Means for obtaining or maintaining the desired pressure within the tube [2]

13/

Means for permitting pumping during operation of the tube

13/

Cooling arrangements; Heating arrangements (for cathodes H01J 13/14; for anodes H01J 13/18)

13/

Igniting arrangements (circuit arrangements H02M 1/02)

13/

having resistive or capacitative igniter

13/

having resistive igniter only

13/

Igniting by movement of a solid electrode

13/

Igniting by movement of vessel as a whole, e.g. tilting

13/

Devices for preventing or eliminating arcing-back (screens therefor H01J 13/22)

13/

One or more circuit elements structurally associated with the tube

13/

Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

13/

Tubes having a single main anode

13/

with control by one or more intermediate control electrodes

13/

with control by igniter, e.g. single-anode ignitron

13/

Tubes having two or more main anodes

13/

with control by one or more intermediate control electrodes

15/

Gas-filled discharge tubes with gaseous cathodes, e.g. plasma cathode (lamps H01J 61/62)

15/

Details, e.g. electrode, gas filling, shape of vessel

15/

Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

17/

Gas-filled discharge tubes with solid cathode (H01J 25/00, H01J 27/00, H01J 31/00 to H01J 41/00 take precedence; gas or vapour discharge lamps H01J 61/00; gas filled spark gaps H01T; Marx converters H02M 7/26; tubes for generating potential differences by charges carried in a gas stream H02N)

17/

Details

17/

Electrodes; Screens

17/

Cathodes

17/

having mercury or liquid alkali metal deposited on the cathode surface during operation of the tube

17/

Anodes

17/

Control electrodes

17/

Magnetic means for controlling the discharge

17/

Vessels; Containers

17/

Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

17/

Selection of substances for gas fillings; Specified operating pressure or temperature (radioactive fillings H01J 17/32)

17/

Means for obtaining or maintaining the desired pressure within the tube

17/

Means for absorbing or adsorbing gas, e.g. by gettering

17/

Means for producing, introducing, or replenishing gas or vapour during operation of the tube

17/

Cooling arrangements

17/

Igniting arrangements

17/

Igniting by associated radioactive materials or fillings

17/

One or more circuit elements structurally associated with the tube

17/

Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

17/

Cold-cathode tubes (TR boxes H01J 17/64)

17/

with one cathode and one anode, e.g. glow tube, tuning-indicator glow tube, voltage-stabiliser tube, voltage-indicator tube (cathode-glow lamps H01J 61/64)

17/

having one or more probe electrodes, e.g. for potential dividing

17/

having one or more control electrodes

17/

for preventing and then permitting ignition, but thereafter having no control

17/

with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron

17/

Display panels, e.g. with crossed electrodes (gas-discharge-type indicating arrangements effected by the combination of a number of individual lamps G09F 9/313) [3]

17/

Thermionic-cathode tubes (TR boxes H01J 17/64)

17/

with one cathode and one anode

17/

having one or more control electrodes

17/

for preventing and then permitting ignition, but thereafter having no control

17/

with more than one cathode or anode

17/

the discharge paths priming each other in a predetermined sequence, e.g. counting tube

17/

with independent discharge paths controlled by intermediate electrodes, e.g. polyphase rectifier

17/

Tubes specially designed for switching or modulating in a waveguide, e.g. TR box

19/

Details of vacuum tubes of the types covered by group H01J 21/00

19/

Electron-emitting electrodes; Cathodes

19/

Thermionic cathodes

19/

characterised by the material

19/

062

with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material [6]

19/

064

with other metal oxides as an emissive material [6]

19/

066

with metals or alloys as an emissive material [6]

19/

068

with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material [6]

19/

Cathodes heated directly by an electric current

19/

characterised by the shape

19/

Supports; Vibration-damping arrangements

19/

Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

19/

Heaters (filaments for incandescent lamps H01K 1/02)

19/

Insulating layer or body located between heater and emissive material

19/

Supports for the emissive material

19/

Dispenser-type cathodes, e.g. L-cathode

19/

Cold cathodes, e.g. field-emissive cathode

19/

Non-electron-emitting electrodes; Screens

19/

characterised by the material

19/

Anodes

19/

forming part of the envelope

19/

Cooling of anodes

19/

Control electrodes, e.g. grid

19/

Screens for shielding (screens acting as control electrodes H01J 19/38)

19/

Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies

19/

Insulation between electrodes or supports within the vacuum space (leading-in conductors H01J 19/62)

19/

Mountings for the electrode assembly as a whole

19/

Mountings for individual electrodes (for directly-heated cathodes H01J 19/12)

19/

Spacing members extending to the envelope

19/

without fixed connection between spacing member and envelope

19/

Vessels; Containers; Shields associated therewith

19/

characterised by the material of the vessel or container

19/

provided with coatings on the walls thereof; Selection of materials for the coatings

19/

Seals between parts of vessels

19/

Seals for leading-in conductors

19/

Leading-in conductors

19/

Means forming part of the tube for the purpose of supporting it (associated with electrical connecting means H01J 19/66)

19/

Means forming part of the tube for the purpose of providing electrical connection to it (construction of connectors H01R)

19/

Specified gas introduced into the tube at low pressure, e.g. for reducing or influencing space charge

19/

Means for obtaining or maintaining the vacuum, e.g. by gettering

19/

Tubulations therefor, e.g. for exhausting; Closures therefor

19/

Cooling arrangements (cooling of anodes H01J 19/36)

19/

Means structurally associated with the tube for indicating defects or previous use

19/

One or more circuit elements structurally associated with the tube

19/

Structurally associated resonator having distributed inductance and capacitance

19/

Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

H01J 5/00 - H01J 9/52

H01J 21/00 - H01J 25/78