US PATENT SUBCLASS 331 / 129
.~ Relaxation oscillator


Current as of: June, 1999
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331 /   HD   OSCILLATORS

126  DF  GASEOUS SPACE DISCHARGE DEVICE {3}
129.~ Relaxation oscillator {2}
130  DF  .~.~> Plural gaseous devices
131  DF  .~.~> Discharge device or rectifier in "C" or "L" charging or discharging circuit


DEFINITION

Classification: 331/129

(under subclass 126) Oscillators for generating nonsinusoidal waves which are cyclic in nature and wherein each cycle consists of a period determined by the charging time of a capacitor or inductor of the oscillator followed by a period determined by the discharging time of the capacitor or inductor through a resistor element, the means for controlling the charge or discharge of the capacitor or inductor being of the gaseous space discharge type of the oscillator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+, for relaxation oscillators utilizing transistors.

143+, for relaxation oscillators not provided for in any preceding subclass.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

401+, for relaxation systems utilizing nonlinear reactors and which are not of the free-running type. 327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses for miscellaneous relaxation circuits and

185+, for such circuits which may utilize a stable state circuit.