Patent ID: 8333249

Claim:
A portable field roller device 100 comprising: (a) an elongated tank 110 having a first end and a second end; (b) a tank frame 210 for supporting the tank 110 , the tank frame 210 surrounds side portions of the tank 110 , the tank frame 210 has a first side portion 210 a , a second side portion 210 b , a third side portion 210 c , and a fourth side portion 210 d; (c) a center axle 230 traverses the tank 110 from the first end to the second end, the first end of the center axle 230 engages the third side portion 210 c of the tank frame 210 and the second end of the center axle 230 engages the fourth side portion 210 d of the tank frame 210 , the tank 110 can roll in at least a first direction toward the first side portion 210 a of the tank frame 210 and second direction toward the second side portion 210 b of the tank frame 210 about the center axle 230 ; (d) a first retractable wheel 220 a connected to the first side portion 210 a of the tank frame 210 via a first wheel brace 221 a , the first wheel brace 221 a being pivotally attached to the first side portion 210 a of the tank frame 210 , and a second retractable wheel 220 b connected to the second side portion 210 b of the tank frame 210 via a second wheel brace 221 b , the second wheel brace 221 b being pivotally attached to the second side portion 210 b of the tank frame 210 ; (e) a first hydraulic cylinder arm 224 a operatively connected to the first wheel brace 221 a , and a second hydraulic cylinder arm 224 b operatively connected to the second wheel brace 221 b , the hydraulic cylinder arms 224 function to move the respective retractable wheels 220 between an extended position and a retracted position, when the retractable wheels 220 are in the extended position the tank 110 is raised a distance above a ground surface and when the retractable wheels 220 are in the retracted position the tank 110 rests on the ground surface; (f) a first tow extending from the third side portion of the tank frame 210 ; and (g) a second tow disposed on the first side portion 210 a of the tank frame 210 .