Woodworking – Special-work machine – Stump removing
Patent
1996-10-30
1998-02-17
Bray, W. Donald
Woodworking
Special-work machine
Stump removing
60431, 60456, 37302, 144334, 24110171, A01G 2306
Patent
active
057182710
ABSTRACT:
A stump cutting or grinding apparatus and method are disclosed which utilize a pump for attachment to a power takeoff of a tractor, a cutting or grinding device for attachment to a backhoe arm of the tractor, a motor connected to the cutting or grinding device, a plurality of lines for circulating hydraulic fluid between the pump and the motor and a plurality of lines for passing a portion of the hydraulic fluid through the hydraulic system of the tractor. Passing a portion of the circulating hydraulic fluid through a hydraulic system of the tractor enables the tractor to cool and filter the fluid and eliminates the need for a separate tank or reservoir that would otherwise be needed to contain and treat fluid being circulated between the pump and motor. A scoop may be attached to the cutting or grinding device for moving or removing rocks, dirt or debris from around the stump.
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Bray W. Donald
Henry Mark M.
Rogers Mark A.
Speed Gary N.
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