(under subclass 9) Subject matter in which the means driven by the motor is adapted to drive a load shaft or device in a forward and in a reverse direction without reversing the direction of operation of the motor.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
202, 355, 361, 376+, 404, and other appropriate subclasses for reversing gearing, and also "Mechanical movement" subclasses involving oscillating or reciprocating motions.
192, Clutches and Power-Stop Control,
21, for the combination of a clutch and a reversing gear.
474, Endless Belt Power Transmission Systems and Components, 1+, for control for forward and reverse in an endless belt power transmission.
475, Planetary Gear Transmission Systems or Components, appropriate subclasses for reversing gearing in planetary transmissions.
476, Friction Gear Transmission Systems or Components,
15+, for friction gear transmissions having a forward and reverse feature.
