US 12,137,626 B2
Three-point hitch with attachable implement-actuators
Peter J. Mollick, Phoenix, AZ (US)
Appl. No. 17/777,043
Filed by Peter J. Mollick, Phoenix, AZ (US)
PCT Filed Nov. 30, 2020, PCT No. PCT/US2020/062562
§ 371(c)(1), (2) Date May 15, 2022,
PCT Pub. No. WO2021/113165, PCT Pub. Date Jun. 10, 2021.
Claims priority of provisional application 62/995,485, filed on Jan. 29, 2020.
Claims priority of provisional application 62/974,561, filed on Dec. 10, 2019.
Claims priority of provisional application 62/974,404, filed on Dec. 5, 2019.
Prior Publication US 2022/0400600 A1, Dec. 22, 2022
Int. Cl. A01B 59/00 (2006.01); A01B 59/06 (2006.01); A01B 63/02 (2006.01); A01B 63/108 (2006.01); A01B 63/12 (2006.01); A01B 69/04 (2006.01); A01B 69/08 (2006.01); A01B 79/00 (2006.01)
CPC A01B 79/005 (2013.01) [A01B 59/004 (2013.01); A01B 59/068 (2013.01); A01B 63/023 (2013.01); A01B 63/108 (2013.01); A01B 63/12 (2013.01); A01B 69/006 (2013.01); A01B 69/008 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A three-point hitch of mobile machinery such as an agricultural or excavating tractor, the three-point hitch comprising:
a) three arms connectable to an implement, the three arms comprising:
i) a top-link-arm;
ii) two bottom-lift-arms;
each of the three arms pivotally attached to the tractor at one end, the opposing end of each of the three arms comprising an implement-connection-device configured to connect to the implement, the bottom-lift-arms laterally spaced apart and attached in a lower horizontal plane at the tractor, the top-link-arm attached in a higher horizontal plane at the tractor and located in a vertical plane between the two bottom-lift-arms;
b) at least one implement-actuator attached to each bottom-lift-arm, each implement-actuator comprising:
i) a dual action linear actuator having a cylinder tube and a rod, the cylinder having a first cylinder-end and a second cylinder-end, the rod having a first rod-end and a second rod-end, the first rod-end protrudes out of the first cylinder-end, the first rod-end comprises a rod-implement-connection-device, the rod-implement-connection-device configured to releasably connect to the implement, the rod-implement-connection-device supplants the implement-connection-device of the corresponding bottom-lift-arm, the bottom-lift-arm implement-connection-device is no longer used for a connection to the implement, the bottom-lift-arm implement-connection-device connects to the implement-actuator, the implement-actuator implement-connection-device is now the connection to the implement, enabling movement of the implement by the implement-actuator;
the first rod-end extends away from the cylinder in the direction of the implement and retracts towards the cylinder;
the first cylinder-end is located proximate to the rod-implement-connection-device, and the second cylinder-end is at the opposing end of the cylinder;
the rod-implement-connection-device enables a pivotal connection to the implement; and
each implement-actuator is suitable to be controlled with a power source.