Patent ID: 7143863

Claim:
In a combination of a powered harvester and a grain cart towed with said harvester, said harvester having a pair of forward wheels or tracks, and a pair of rearward wheels, and carrying an on-board harvester grain bin for housing harvested grain, and said grain cart carrying a grain cart bin for housing harvested grain, the improvement comprising: (a) said harvester having a pair of forward wheels or tracks, and a pair of rotatable rearward caster wheels; (b) a joint assembly interconnecting said harvester and said grain cart, said joint assembly including a grain cart tongue that mates with said harvester; (c) an articulation cylinder assembly connecting said harvester and said grain cart tongue in the region of said joint assembly; and (d) bi-directional, biased guide rods connected between said grain cart tongue and said caster wheels, whereby said combination is an articulated harvester.