US PATENT SUBCLASS 474 / 1
CONTROL FOR FORWARD AND REVERSE

Current as of: June, 1999
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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

1CONTROL FOR FORWARD AND REVERSE {3}
2  DF  .~> Cyclical or sequential (e.g., machine controlled, etc.) {1}
4  DF  .~> Including separate belts for forward and reverse {1}
7  DF  .~> Including coaxial pulleys rotated in opposite directions by single endless belt simultaneously engaging both pulleys

DEFINITION

Classification: 474/1

CONTROL FOR FORWARD AND REVERSE:

(under the class definition) Subject matter wherein mechanism is provided for changing the direction of rotation of an

output load driving member from clockwise to counterclockwise or vice versa.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

37, and 89.2+ for mechanical movements for motion conversion using belt and pulley drive means, and appropriate subclass under 640+ for other gearing and gearing combination having reversing means.

318, Electricity: Motive Power Systems,

10, for control of forward and reverse in a device being driven.

475, Planetary Gear Transmission Systems or Components, appropriate subclasses, for planetary gearing systems having reversing means. [figure] [figure]