US 12,221,180 B2
Track tensioning system
Brant Douglas Kukuk, Perry, OK (US); Victor L. Schmidlkofer, Perry, OK (US); and Lelan Mack Powers, Stillwater, OK (US)
Assigned to The Charles Machine Works, Inc., Perry, OK (US)
Filed by The Charles Machine Works, Inc., Perry, OK (US)
Filed on Oct. 15, 2021, as Appl. No. 17/502,725.
Claims priority of provisional application 63/092,550, filed on Oct. 16, 2020.
Prior Publication US 2022/0119052 A1, Apr. 21, 2022
Int. Cl. B62D 55/30 (2006.01); B62D 55/06 (2006.01); B62D 55/10 (2006.01)
CPC B62D 55/30 (2013.01) [B62D 55/06 (2013.01); B62D 55/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a work machine supported on a pair of track assemblies, each track assembly comprising:
a first frame assembly supporting a first roller;
a second frame assembly supporting a second roller and movable relative to the first frame;
an endless track surrounding the first and second frames and engaging the first and second rollers; and
a linear actuator engaging the first and second frames and configured to receive hydraulic fluid, the linear actuator comprising:
a supply collar interposed between a cylinder and an elongate rod; and
a reciprocating piston disposed within the cylinder and engaging the second frame assembly; and
a manifold supported on the work machine and in fluid communication with the linear actuator and a pump, the hydraulic manifold comprising:
a valve configured to supply fluid from the pump to the linear actuator at a desired flow rate to maintain fluid within the linear actuator at a desired pressure.