US PATENT SUBCLASS 331 / 81
.~ With electron bunching or velocity variation means


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



331 /   HD   OSCILLATORS

79  DF  BEAM TUBE {2}
81.~ With electron bunching or velocity variation means {3}
82  DF  .~.~> Traveling wave type
83  DF  .~.~> Multicavity type (e.g., Klystron)
84  DF  .~.~> Reflex type (i.e., with repeller electrode)


DEFINITION

Classification: 331/81

(under subclass 79) Subject matter wherein the means for controlling the beam comprises a resonator or a slow wave structure (delay line) effectively in energy-coupling relation to the moving beam of particles, the energy interchange between the particles and resonator or slow wave structure due to relative movement therebetween resulting in a change in velocity of given particles along the path of the beam, such differences in velocity of given particles causing the particles to form in groups or bunches.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6, for oscillators utilizing velocity variation type active elements (e.g., Klystron) and having means for automatically stabilizing the oscillator frequency.

86+, for magnetically controlled space discharge device oscillators of the magnetron type wherein the electrons in the interaction space between the cathode and anode resonator may be subjected to velocity modulation and bunching to generate oscillations.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems,

3+, for cathode-ray tubes combined with circuit element structure, especially indented subclasses 3.5+ for traveling wave tubes with delay transmission line and indented subclasses 4+ for cathode-ray tube combined with inductor or distributed parameter type inductive structure, and subclass 39.3 for traveling wave tube with delay line and wherein the active electrons are not in the form of a beam or ray. 330, Amplifiers,

45, for velocity variation electron-beam tube linear amplifiers.

332, Modulators,

133, 147+ or 165+, for electron bunching type tubes (e.g., klystron) utilized in a frequency, phase or amplitude modulator, respectively.