Patent ID: 8371657

Claim:
A device, comprising: a transport assembly for transporting granular material, the transport assembly defining at least a first egress and a second egress, the first egress for releasing a first portion of the granular material, and the second egress for releasing a second portion of the granular material; a first door assembly slidably coupled with the transport assembly, the first door assembly including a first single door panel configured for at least substantially covering the first egress in a first position for retaining granular material and at least substantially uncovering the first egress in a second position for controllably releasing the first portion of the granular material; a second door assembly slidably coupled with the transport assembly, the second door assembly including a second single door panel configured for at least substantially covering the second egress in a third position for retaining granular material and at least substantially uncovering the second egress in a fourth position for controllably releasing the second portion of the granular material; a first linear actuator assembly coupled with the transport assembly and the first door assembly, wherein the first linear actuator assembly is configured to extend or retract in a plane substantially parallel to a plane of the first door assembly for moving the first door assembly between the first position and the second position; a second linear actuator assembly coupled with the transport assembly and the second door assembly, wherein the second linear actuator assembly is configured to extend or retract in a plane substantially parallel to a plane of the second door assembly for moving the second door assembly between the third position and the fourth position; a pump assembly coupled with the first linear actuator assembly and the second linear actuator assembly, the pump assembly for actuating the first linear actuator assembly to move the first door assembly between the first position and the second position, and for actuating the second linear actuator assembly to move the second door assembly between the third position and the fourth position; and a selector valve connected between the pump assembly and the first linear actuator assembly and between the pump assembly and the second linear actuator assembly for selecting at least one of the first linear actuator assembly or the second linear actuator assembly and controlling the movement of at least one of the first door assembly or the second door assembly, wherein the first door assembly, the second door assembly, the first linear actuator assembly, and the second linear actuator assembly are above a plane formed by axles of wheels of the transport assembly.