.~ Having means to produce a progressing or traveling motor field flux
DEFINITION
Classification: 318/121
(under subclass 119) Subject matter in which means are provided for producing a magnetic field of force in the motor, which field (or the resultant of the component elements thereof) is caused to occupy a succession of positions in the path or direction of travel of the reciprocable member of the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
135, for motor systems having linear-movement motors with means for producing progressing or travelling field.
148, for induction and synchronous motors supplied by controlled generators.
195+, for motor systems having an induction motor with means for producing a travelling magnetic field.
700+, for motor systems having a synchronous motor with means for producing a travelling magnetic field.
