US PATENT SUBCLASS 315 / 5
.~.~.~ Ray passes in or through a hollow distributed parameter device

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

1  DF  CATHODE RAY TUBE CIRCUITS {11}
3  DF  .~ Combined cathode ray tube and circuit element structure {2}
4  DF  .~.~ Inductor or distributed parameter-type inductive structure {2}
5.~.~.~ Ray passes in or through a hollow distributed parameter device {15}
5.11  DF  .~.~.~.~> With a secondary emission stage {1}
5.13  DF  .~.~.~.~> With a magnetron
5.14  DF  .~.~.~.~> Plural rays pass through or in the hollow device {2}
5.18  DF  .~.~.~.~> Ray returns to the hollow device; e.g., reflex type {1}
5.24  DF  .~.~.~.~> Deflecting or reflecting the ray {3}
5.29  DF  .~.~.~.~> Ray has appreciable transverse electrical dimension and/or significant shape {2}
5.33  DF  .~.~.~.~> Device also a ray anode or cathode
5.34  DF  .~.~.~.~> Focusing and/or concentrating the ray {1}
5.36  DF  .~.~.~.~> Device removable from its grids
5.37  DF  .~.~.~.~> Device has particular grid structure
5.38  DF  .~.~.~.~> With particular collector or anode structure
5.39  DF  .~.~.~.~> Plural hollow devices {6}
5.51  DF  .~.~.~.~> Plural gaps in the hollow device
5.52  DF  .~.~.~.~> Device has a re-entrant portion surrounding the ray
5.53  DF  .~.~.~.~> Device tunable {1}

DEFINITION

Classification: 315/5

(under subclass 4) Subject matter wherein the inductor or

inductive and capacitive device constitutes a substantially closed hollow conductive structure having, or acting as if it had distributed inductance and/or capacitance, the ray traversing at least part of the hollow space, and usually passing through the conductive structure by openings provided in the conductive structure.

(1) Note. The conductive structure may be a waveguide, cavity resonator, or coaxial line. An electromagnetic field usually exits in the hollow space, energy being transferred between the ray and the field. A parallel wire Lecher-type line with the ray passing between the wires is not, in itself, a hollow distributed parameter device for classification here, but rather is classified in subclass 4 above. However, where the Lecher line has added portions to provide a hollow space or includes holes in its wires for passage of the ray, classification is in these subclasses (5+).

(2) Note. For classification here the ray may originate within the device and either pass beyond or terminate within the device; or the ray may originate beyond the device and either pass through or terminate within the device. Where the ray merely passes across an opening in the hollow distributed parameter device without entry, classification is in subclass 4 above, even though a coupling exists between the ray and the electromagnetic field within the device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3.5+, for traveling wave tubes with delay-type transmission lines, which may have distributed parameters.

14+, for other cathode-ray tube systems wherein a plurality of means are provided accelerating and/or decelerating the electrons in the cathode-ray. 39.51+, and 40, for other discharge devices having an electrode formed as an inductive impedance or inductive structure.

41+, for other electric discharge devices having an inductive impedance which is structurally combined with the discharge device connected between two of the electrodes of the discharge device.

SEE OR SEARCH CLASS

330, Amplifiers,

45+, for amplifiers having an electron beam tube coupled to cavity resonator, including those of types classified in this and indented subclasses.

331, Oscillators,

81+, for electrical oscillators using a beam tube wherein the

beam of charged particles passes through or into a hollow distributed parameter device, particularly indented subclass 83 wherein the beam passes through plural cavities. See also the reference to Class 331 under "SEARCH CLASS" in the class definition.

332, Modulators, especially

131+, 147+, and 165+ for electron bunching-type modulators. See also (3) Note under the Class Definition.