A sectional control funnel box (36) includes a box body having an upper receiving member (44) for receiving particulate matter, a lower manifold (46) configured to be mounted on a distribution plate (24), and a funnel mechanism (42) disposed between the upper receiving member and the lower manifold. The lower manifold includes a plurality of chutes (100) configured to direct the particulate matter to apertures (38) in the distribution plate. The funnel mechanism includes supply sections (54, 76) that include directing slots (56, 90) configured to provide the particulate matter from the upper receiving member to the chutes. An actuator (48) is attached to the funnel mechanism (42) and configured to drive the funnel mechanism between at least a first position, where a first one of the plurality of supply sections is aligned with the upper receiving member (44), and a second position, where a second one of the plurality of supply sections is aligned with the upper receiving member.

A declutching device for a seed drill distribution element including a locking element and a support element on which the locking element is mounted, in which the locking element allows two stable positions relative to the support element and can be moved between these, the locking element being configured, when in a stable position, to be able to declutch the distribution element.

A dry product spreader is provided that includes a bin that includes a bin discharge opening. The dry product spreader further includes a conveyor located at the bottom of the bin. The conveyor is capable of discharging dry product material from the bin through the bin discharge opening. The dry product spreader further includes a spinner assembly for spreading the dry product material and positioned to receive the dry product material from the bin discharge opening. The dry product spreader further includes a material conveyance system to displace dry product material received through the bin discharge opening before the dry product material reaches the spinner assembly. The dry product spreader further includes a distribution manifold configured to receive dry product material displaced by the material conveyance system. The distribution manifold is configured to return dry product material displaced by the material conveyance system to be spread by the spinner assembly.

A flow control system for controlling flow of materials such as seeds or fertilizer as the materials are fed into a manifold and meter unit of an air seeder. The flow control system generally includes a flow controller which is connected between a volume of materials, such as a tank, and a manifold of an air seeder. The flow controller is adapted to control flow of the materials into the manifold to be metered by a meter unit. The flow controller includes a plurality of movable gates; with each gate being adapted to selectively open or close a corresponding opening in the flow controller. The gates may be manually adjusted, such as by a handle, or may be automatically adjusted, such as by actuators. By selectively opening or closing various gates, the volume and speed of flow of materials into the manifold may be easily and efficiently adjusted.

A metering apparatus for distributing an agricultural product in a field has a meterbox configured for association with a hopper for receiving agricultural product from the hopper. A rotatable metering element is disposed within a chamber in the meterbox, and the rotating metering element is configured to deliver the agricultural product at a regulated rate from the hopper through the chamber to a product distribution line. Delivery of the agricultural product to the product distribution line may be selectively stopped by a disengagement structure for disengaging the agricultural product from the meter roller while the meter roller continues to rotate. The disengagement structure may comprise the meter roller moveable between a lowered product engaging position and a raised product disengaging position.

A sectional control funnel box includes a box body having an upper receiving portion for receiving particulate matter and a plurality of chutes extending from the upper receiving portion. At least one blocker door is disposed between the upper receiving portion and at least one of the chutes, and the blocker door is movable between an open state and a closed state. An actuator is connected to the blocker door and configured to drive the blocker door between the open state and the closed state. An auger is disposed in the upper receiving portion to evenly distribute particulate material within the upper receiving portion.

A port interface for a pneumatic distribution system includes a first flow passage configured to receive fluidized particulate material from an outlet port of a header and to output the fluidized particulate material to an outlet line. The port interface also includes a second flow passage configured to receive a purging airflow and to output the purging airflow to the outlet line. In addition, the port interface includes a knife valve having a blade with a first opening and a second opening. The blade is configured to move between a first position in which the first opening is substantially aligned with the first flow passage and the second opening is substantially aligned with the second flow passage, and a second position in which the first opening is substantially aligned with the second flow passage and a solid portion of the blade is substantially aligned with the first flow passage.

An air seeder includes a header including an inlet connected to a first hose through which a mixture of air and particulate matter enters the header. The header also includes a plurality of exit ports through which the mixture of air and particulate matter exit the header. Additionally, the air seeder includes a valve associated with each one of the plurality of exit ports. The valve opens and closes to regulate the flow of the mixture of air and particulate matter out of an associated exit port while also regulating a flow of purging air through the associated exit port.

A purging system is provided for a multiple variety seed meter of a multi-variety planter. The purging system includes seed return valves that may be arranged for receiving seed that was removed from the seed meter. The seed return valves return the removed seed into corresponding appropriate seed storage compartments to allow a new seed variety to be delivered to the seed meter while reducing seed variety mixing in the seed meter. A pipe with a purge passage may extend from the seed meter to a purging hose that delivers the removed seed to the seed return valve(s). Each seed return valve may be a vacuum-actuated piston airlock valve assembly with a valve plunger that reciprocates to define seed collecting and releasing states of the valve.

A multiple variety seed meter is provided for multi-variety row crop planting. The seed meter includes a segmented feed pipe system that may include a feed pipe with multiple passages that can be rotated to present one of multiple variety openings toward a seed pool in the seed meter to deliver a specific seed variety into the seed meter. The feed pipe may be an inner selector pipe concentrically nested for rotation in an outer sleeve that extends into the seed meter.