(under subclass 494) Subject matter in which means are provided for making and/or breaking the armature or primary circuit of the motor.
(1) Note. See Circuit Making and/or Breaking Device of the class definition for the definition of "circuit making and/or breaking" as used in this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101, for plural motor systems having starting and or stopping means for the motor which comprise mainly circuit making and or breaking of the armature or primary circuit of the motor.
134, for reciprocating or oscillating motor systems having means for making and or breaking the line or supply circuit to the motor.
264, for automatic starting and or stopping of a motor combined with some other motor operation control, wherein the starting and stopping is generally effected by armature or primary circuit making and or breaking. 272, see the reference to subclass 264, above.
275, see the reference to subclass 264, above.
277, see the reference to subclass 264, above.
374, for motor braking systems by means of "plugging" (i.e., application of reverse power to a forwardly running motor) in which the armature or primary circuit is opened substantially at the moment that the motor reaches zero speed.
443, for periodically or repetitiously starting an electric motor by opening and closing the motor circuit.
SEE OR SEARCH CLASS
200, Electricity: Circuit Makers and Breakers, all subclasses for the structure of circuit makers and breakers.
307, Electrical Transmission or Interconnection Systems,
96, for intermittent regulatory interruption of an electrical system, and subclass 112 for switching systems.
314, Electric Lamp and Discharge Devices: Consumable Electrodes,
72, 74 for switch controlled motor circuits in electric motor feeding mechanisms for discharge electrodes.
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclass for a battery or condenser charging or discharging system that includes circuit making or breaking. 322, Electricity: Single Generator Systems,
69, for means for making and/or breaking the field circuit of an electric generator.
361, Electricity: Electrical Systems and Devices,
139+, for relay circuits in which an electric circuit is generally made and/or broken and for electron magnetic switching systems in general.
