A motor drives a seeding system. A sensor senses a characteristic of the motor and a motor jam is detected based on the sensed characteristic. The motor is momentarily reversed, when a jam is detected.

An agricultural seeding machine comprises, in one example, a seed delivery system configured to deliver seeds to at least one trench by two or more substantially gravity-drop channels, and a seed metering system comprising a rotating meter element configured to singulate seeds from a seed source into the two or more channels.

An agricultural planter includes a plurality of row units attached to a toolbar. The row units include seed meters in seed meter housings for receiving, singulating, and dispensing seed or other particulate. The seed meters include a circular seed disc with a seed path for receiving the seed in the seed meter housing. Integrated with the seed meter, such as at the housing, is an electric pressure source dedicated to create a pressure differential for the seed meter or meters at a particular location on the planter. The pressure source can be positive or negative to temporarily adhere seed to the seed disc of the meter. A single pressure source can provide the pressure differential to a single meter or to multiple meters or discs at a row unit.

A seed delivery apparatus and methods in which a seed conveyor delivers seed from a metering device to a furrow in a controlled manner to maintain seed placement accuracy within the furrow.

Systems, methods and apparatus are provided for controlling an agricultural implement having a plurality of row units. In some embodiments, seeds are planted by rotating a seed disc in a first direction; seeds are then unloaded from a seed disc into a seed pool by rotating the seed disc in a second direction. In some such embodiments an amount of rotation in the second rotation is selected to ensure that seeds are released into the seed pool and not released from the from the seed meter.

A row unit for use with a planter includes a furrow creator and an apparatus for controlling the depth of furrow created. The furrow creator can be a blade and shank. A seed meter, for example, a positive pressure meter, can be included that provides precision planting of one or more particulates. The seed meter can be a single meter or can include more than one meter at each row unit, such as to provide for multi-hybrid or multi-particulate planting. The positive pressure can then be used to delivering the seed via a seed to ground device to plant the one or more particulates in the created furrow. The row unit as provided will be a more precise planting for both seed spacing and depth, as well as other planting characteristics.

A seed dispenser and conveyor system applied in agricultural tools with a circular structural base (20) equipped with lid (22), and an angled vertical base (21) equipped with lid (23), on the upper part of the base (20) presenting a seed box (30), a vacuum turbine (40) and a cutting disk (50), with the system actuated by a bar (223) and gear (222) rotating the selector disk (VI) in a clockwise movement, transmitting the movement to the hollowed gears (B1, C1, D1, and E1) equipped with spacing that conveys the seed (60) to the releasing ramp (211), producing synchronized movements in opposed directions, uniformly conveying the seeds and not being subject to trepidation in the seeding line or any type of lateral, frontal and rear inclination, besides keeping the correct distance up to the seeding groove, and reducing the seed variation coefficient in the seeding line.

A metering system for a row unit for individual dispensing of grains comprises metering devices having a chamber for carrying grains, whereby a defined pressure level in the chamber is higher than ambient pressure. At least two metering elements establish a border to the chamber, whereby the metering elements are arranged within the housing so that they can be turned and the metering elements consist of cut-outs arranged along a curved path for picking up grains. At least one grain dispensing area is intended, which is defined by the chamber and the metering elements. The grain dispensing area includes a seed inlet element for transporting separated grains to a seed metering pipe to dispense the separated grains into a furrow, whereby a pressure application device is arranged at the seed inlet element or the seed metering pipe, to produce an air stream for the acceleration of the grains.

A direct drive seed metering device for sowing machines operated by vacuum and driven by a coaxial electric motor, comprising a seed metering disc for capturing seeds from a reservoir and laying them in a controlled manner in a furrow in the soil, where in the coaxial electrical motor couples directly and coaxially to the metering disc without the need for intermediate transmission elements, redactors, gears or timing belts, and where said coaxial electrical motor is a toroidal electric motor with a hollow rotor shaft, which fluidly connects said seed capturing means with a vacuum generating means.

A direct drive seed metering device for sowing machines comprising a rotatable vacuum chamber operated by vacuum and driven by a coaxial electric motor, the rotatable vacuum chamber comprising a seed metering disc for capturing seeds from a reservoir and laying them in a controlled manner in a furrow in the soil, where in the coaxial electrical motor couples directly and coaxially to the rotatable vacuum chamber without the need for intermediate transmission elements, redactors, gears or timing belts, and where said coaxial electrical motor is a toroidal electric motor with a hollow rotor shaft, which fluidly connects said seed capturing means with a vacuum generating means.