(under the class definition) Apparatus comprising an earth working device trailing behind a propelling vehicle and an actuator completely carried by the device, the actuator being under the control of an attendant stationed on the vehicle.
(1) Note. For the meaning of "actuator" see the class definition.
(2) Note. The broad combination defined above is basically very common in the art. For classification under this definition a claim should refer to the relationship of the actuator to the vehicle in some significant detail to indicate that the actuator is controlled from the vehicle.
(3) Note. A trailing device under the definition must have at least a part thereof resting on the ground and after operation of the actuator a part of the device must still rest on the ground.
(4) Note. The trailing device comprehends the organization which is intended to be attached to the vehicle by the user of the device.
(5) Note. It is difficult at times to determine whether the actuator should be considered to be completely carried by the earth working device or partly carried by the vehicle.
Generally both the part of the actuator for effecting movement and the part for holding something in position must be supported on the device but the actuator may react against the vehicle. In the case of an actuator of the power take-off type it is sufficient if the power take-off clutch is mounted on the device. In the case of an actuator of the hydraulic ram type both the cylinder and the piston of the ram must be supported on the device. In the case of an actuator of the lever and ratchet type both the lever and ratchet must be supported on the device. In the case of an actuator of the telescoping internally threaded cylinder and externally threaded rod type both the rod and the cylinder must be supported on the device. SEE OR SEARCH THIS CLASS, SUBCLASS:
463, for an actuator carried on an implement adapted to lift the implement for transport on a wheeled frame.
591+, for horizontally adjustable disk gangs in which a manually operated lever is actuated by an attendant not described as being on the tractor and the draft force of the tractor then causes an angling movement of the gangs.
SEE OR SEARCH CLASS
280, Land Vehicles,
407, for articulated vehicles wherein the load of a trailer on a leading vehicle is adjusted by adjusting the point of application of draft to the leading vehicle, and subclasses 420+ for articulated vehicles having service connections.
