Patent ID: 8011440

Claim:
An agricultural system comprising: a support structure including a parallel linkage assembly, a portion of the parallel linkage assembly including a longitudinal axis therethrough; an actuator carried adjacent to the support structure, the actuator having a longitudinal axis therethrough, an angle formed between an intersection of the axes; a ground engaging assembly extending from the support structure; and a packer wheel assembly including a packer wheel extending from the support structure aft of the ground engaging assembly, such that the parallel linkage assembly and the actuator move in conjunction with alterations of terrain and the parallel linkage assembly and the actuator cooperate to apply force to the packer wheel and the packer wheel assembly when the angle between the axes increases, and to remove force from the packer wheel and the packer wheel assembly when the angle between the axes decreases, to control a packing force and a seeding depth of the ground engaging assembly relative to such alterations of terrain, the packer wheel assembly comprising, a first adjustment mechanism and a second adjustment mechanism, the first adjustment mechanism is configured to provide a first range of motion of the packer wheel with respect to the ground engaging assembly, and the second adjustment mechanism is configured to provide a second range of motion, different from the first range of motion, of the packer wheel with respect to the ground engaging assembly.