(under the class definition) Subject matter in which two or more sources of electrical energy are provided for the armature or primary circuit of electric motors one or more of said sources (1) having one or more characteristics (e.g., size, frequency, voltage, etc.) which are substantially different from one or more corresponding characteristics of one or more others of the sources, or (2) are controlled substantially differently (e.g., with respect to time, degree of control, type of control means, etc.) from one or more others of the sources.
(1) Note. Where a plurality of sources are connected in electrical series, or in series, or in series parallel in the armature or primary circuit of a motor, there being no significant diverse characteristics of the sources claimed or no different control of the sources claimed, the patent is excluded from this subclass. See subclass 504 and the subclasses specified in the Notes to the definition of that subclass for such excluded subject matter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
105, for motor systems having plural diverse, or diversely controlled sources of armature or primary circuit supply for plural motors.
119, and 123, for motor systems having a polyphase source of supply for a reciprocating or oscillating motor.
149, for motor systems having plural, diverse or diversely controlled generators for supplying electric energy to the armature or primary circuits of motors. 248, for motor systems having plural, diverse or diversely controlled sources of e.m.f. for a series motor.
500, see Note 1 above. 731, for motor systems having plural sources of supply for an induction motor.
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems,
18, for systems interconnecting a plurality of sources of electrical energy so that they supply a plurality of load devices or load circuits; subclass 43 for systems interconnecting a plurality of sources of electrical energy so that they can supply a common load or load circuit.
315, Electric Lamp and Discharge Devices: Systems,
86, for automatic substitution of power supply; subclass 137 for polyphases source of supply; subclass 160 for plural power supplies, all for lamp or space-discharge device systems.
320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclasses, particularly
138, for a plural source of supply for a battery or condenser in a charging or discharging system.
