Unearthing plants or buried objects – Stone gathering and/or unearthing by impelling above-ground...
Patent
1998-09-04
2000-03-28
Batson, Victor
Unearthing plants or buried objects
Stone gathering and/or unearthing by impelling above-ground...
171136, 171141, 171144, 37303, A01B 4300
Patent
active
060418664
ABSTRACT:
A rock picker having a frame supported by rear support wheels and a tongue that is adapted to be attached to a tractor draw bar. A basket assembly having gathering tines and separation bars is carried by the frame. The gathering tines gather rocks and hold the rocks while allowing soil to pass between adjacent tines. The basket assembly is pivotally attached to short links. The short links are pivotally attached to the frame. Hydraulic cylinders are attached to the frame and to the basket assembly. When the basket assembly is filled with rocks, the hydraulic cylinders are extended. Initially, the short links pivot forward, lowering and extending the forward ends of the gathering tines and placing a downward force on the gathering tines. Continuing extension of the hydraulic cylinder raises the gathering tines and causes rocks to slide down the separation bars and into a rock hopper. Dirt passes between the separation bars and to the ground. The cylinders are retracted to return the basket assembly to a rock gathering position. The rock hopper is dumped in a rock storage area when it is filled.
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