US PATENT SUBCLASS 313 / 348
.~ Foraminous electrodes (e.g., grids) or shields

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

326  DF  ELECTRODE AND SHIELD STRUCTURES {14}
348.~ Foraminous electrodes (e.g., grids) or shields {2}
349  DF  .~.~> Nonuniform mesh area or nonstraight electrodes or nonuniform cross sectional area electrodes
350  DF  .~.~> Rods, wire, or mesh supported on rod or post

DEFINITION

Classification: 313/348

(under subclass 326) Electrodes and shields which are formed of open-work material such as wire mesh or perforated sheet material, or which are formed of wires or bars, or which are otherwise provided with openings in the wall of the electrode or shield.

(1) Note. Some of the electrodes in this subclass are intended for discharge control electrodes or grid electrodes, but also included are all foraminous and grid-like electrode structures even though claimed as being used for anodes, cathodes or other electrodes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

293+, and the subclasses specified in the notes thereto for discharge devices which have a foraminous or grid-like electrode disposed in the inter-electrode space between two other electrodes.

346, where the foraminous or open-work electrode forms a support or carrier for a body or mass of electron emissive material, the body or mass of electron emissive material being at least partly enclosed within the foraminous or open-work electrode contains or is coated with electron emissive material.

SEE OR SEARCH CLASS

245, Wire Fabrics and Structure, appropriate subclasses for flexible wire or slat-and-wire fabrics. 442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, etc..),

1+, for an open mesh material.