US PATENT SUBCLASS 318 / 130
.~.~.~ Electrical oscillation or condenser charging and/or discharging circuits

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

119  DF  RECIPROCATING OR OSCILLATING MOTOR {4}
126  DF  .~ Energizing winding circuit control {5}
129  DF  .~.~ By means for producing periodic electrical pulses in the energizing circuit {2}
130.~.~.~ Electrical oscillation or condenser charging and/or discharging circuits

DEFINITION

Classification: 318/130

(under subclass 129) Subject matter in which the means for

producing the periodic pulses comprise either an electrical self-oscillating circuit or a condenser changing and/or discharging circuit.

(1) Note. Where the condenser changing and/or discharging is merely an adjunct to the system of supply such as a filter means, for example; and does not operate to have a substantial effect in determining the rate which the pulses are supplied to the motor, classification is not herein.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

108, for systems wherein a condenser is charged and discharged to produce a series of pulses.

320, Electricity: Battery or Capacitor Charging or Discharging, 166+, for a system for charging or discharging a capacitor.

331, Oscillators, appropriate subclasses, for self-sustained electric wave generators, per se, particularly

111+, 129+ and 143+ for relaxation oscillators utilizing an RC time constant network to determine the period of oscillation.