(under subclass 362) Subject matter in which means are provided for applying electric energy to an electric motor in such a direction or manner that a torque or force is developed in the motor as a result of such energization which torque or force opposes the tendency of the motor to continue in motion if in motion, or to move if not in motion.
(1) Note. This subclass includes those motor control systems in which the flow of energy to the motor is reversed while the motor is still in motion, or in which the motor is energized in a direction to hold the motor stationary or motionless when the motor is urged to move, while not
energized.
(2) Note. Where the application of reverse power is continued after the forward motion of the motor has been reduced to zero so that the motor operates a substantial amount in the reverse direction, classification is not herein, but under combined reversing and braking controls in preceding subclasses. Note particularly subclass 261.
SEE OR SEARCH THIS CLASS, SUBCLASS:
210, for braking of induction motors by phase-reversal (i.e., by plugging).
261, and the subclass specified in the Notes thereto, for motor systems having braking by application of reverse power combined with continued reverse energization with consequent reverse operation of the motor. See (2) Note above. 280, and the Search Notes thereto, for motor systems having means for reversing the application of power to a motor for effecting a substantial operation of the motor in the reverse direction (Motor-reversing control).
SEE OR SEARCH CLASS
105, Railway Rolling Stock,
61, for electric controls for electric-motor driven locomotives that may involve "plugging" or application of reverse power for braking purposes.
