US 7,461,702 B2
Coupling assembly for a three point hitch assembly
Fred L. Farnsworth, 9100 W. Beaver St., Jacksonville, Fla. 32220 (US); and Jason R. Farnsworth, 9100 W. Beaver St., Jacksonville, Fla. 32220 (US)
Filed on Jun. 30, 2005, as Appl. No. 11/171,680.
Prior Publication US 2007/0000673 A1, Jan. 04, 2007
Int. Cl. A01B 59/06 (2006.01); A01B 59/043 (2006.01)
U.S. Cl. 172—439  [172/443; 172/446] 20 Claims
OG exemplary drawing
 
1. A coupling assembly for connecting an implement to a three point mounting hitch assembly on a tractor, the implement comprising a mounting frame having an upper pin and two lower pins, said coupling assembly comprising:
an upper hook to receive and retain the upper pin of an implement, said upper hook mounted on a generally horizontal assembly comprising lateral extension arms;
two lower hooks to receive and retain the lower pins of an implement, and
extension legs mounted to said lateral extension arms;
means to simultaneously extend and retract said lateral extension arms such that the horizontal spread distance between said lower hooks may be increased or decreased;
means to independently extend and retract said extension legs, such that the vertical spread distance between said upper hook and said two lower hooks may be increased or decreased.