Back to results
US 2015/0351308 A1Published application
Systems and methods for tilling ground materials
AssigneeGreen Heron Tools, LLC
InventorsElizabeth Brensinger, Ann Adams, Robert L. Wrye, Aaron M. Yoder, H.J. Sommer
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention provide systems and methods for tilling ground material. According to one embodiment, a tiller system is provided comprising two coiled conical blades that penetrate ground material to provide both forward propulsion and tillage of the ground material. An operator of the tiller system can adjust the angle at which the coiled conical blades penetrate the ground material to achieve an optimal balance of forward propulsion, stability, and tillage of the ground material.
Claims20
A system for tilling ground material comprising:
- a frame having a forward end and a rearward end;
- a rear wheel sub-assembly coupled to the frame, the rear wheel sub-assembly comprising at least one rear wheel, at least a portion of the at least one rear wheel being positionable below the frame;
- a front wheel sub-assembly coupled to the frame, the front wheel sub-assembly comprising at least one front wheel, the at least one front wheel being positioned forward with respect to the at least one rear wheel;
- a first coiled conical blade, the first coiled conical blade having a shaft having a longitudinal axis, at least a portion of the first coiled conical blade being positioned below the lowermost portion of the frame, at least a portion of the first coiled conical blade being positioned forward of the at least one rear wheel and rearward of the at least one front wheel;
- a second coiled conical blade, the second coiled conical blade having a shaft having a longitudinal axis, at least a portion of the second coiled conical blade being positioned below the lowermost portion of the frame, at least a portion of the second coiled conical blade being positioned forward of the at least one rear wheel and rearward of the at least one front wheel;
- a power sub-assembly coupled to the frame and the first and second coiled conical blades, the power sub-assembly comprising at least one motor operatively configured to rotate the first and second coiled conical blades about their respective longitudinal axes of their respective shafts;
- and
- a handle bar sub-assembly coupled to the frame, the handle bar sub-assembly comprising at least one member extending rearward of the at least one rear wheel.
5 more elements
A system for tilling ground material comprising:
- a frame having a forward end and a rearward end;
- a rear wheel sub-assembly coupled to the frame, the rear wheel sub-assembly comprising at least one rear wheel, at least a portion of the at least one rear wheel being positionable below the frame;
- a front wheel sub-assembly coupled to the frame, the front wheel sub-assembly comprising at least one front wheel, the at least one front wheel being positioned forward with respect to the at least one rear wheel;
- a first coiled conical blade, the first coiled conical blade having a shaft having a longitudinal axis and flighting helically coiled about the shaft, at least a portion of the first coiled conical blade being positioned below the lowermost portion of the frame, at least a portion of the first coiled conical blade being positioned forward of the at least one rear wheel and rearward of the at least one front wheel;
- a second coiled conical blade, the second coiled conical blade having a shaft having a longitudinal axis and flighting helically coiled about the shaft, at least a portion of the second coiled conical blade being positioned below the lowermost portion of the frame, at least a portion of the second coiled conical blade being positioned forward of the at least one rear wheel and rearward of the at least one front wheel, wherein the flighting helically coiled about the shaft of the second coiled conical blade is helically coiled in an opposite direction than a direction in which the flighting helically coiled about the shaft of the first coiled conical blade is helically coiled;
- a power sub-assembly coupled to the frame and the first and second coiled conical blades, the power sub-assembly comprising at least one motor operatively configured to rotate the first and second coiled conical blades about their respective longitudinal axes of their respective shafts;
- and
- a handle bar sub-assembly coupled to the frame, the handle bar sub-assembly comprising at least one member extending rearward of the at least one rear wheel.
5 more elements
A system for tilling ground material comprising:
- a frame having a forward end and a rearward end;
- a rear wheel sub-assembly coupled to the frame, the rear wheel sub-assembly comprising at least one coulter wheel, at least a portion of the at least one rear coulter wheel being positionable below the frame;
- a front wheel sub-assembly coupled to the frame, the front wheel sub-assembly comprising at least one front wheel, the at least one front wheel being positioned forward with respect to the at least one coulter wheel;
- a first coiled conical blade, the first coiled conical blade having a shaft having a longitudinal axis and flighting helically coiled about the shaft, at least a portion of the flighting of the first coiled conical blade being open, at least a portion of the first coiled conical blade being positioned below the lowermost portion of the frame, at least a portion of the first coiled conical blade being positioned forward of the at least one coulter wheel and rearward of the at least one front wheel;
- a second coiled conical blade, the second coiled conical blade having a shaft having a longitudinal axis and flighting helically coiled about the shaft, at least a portion of the second coiled conical blade being positioned below the lowermost portion of the frame, at least a portion of the flighting of the second coiled conical blade being open, at least a portion of the second coiled conical blade being positioned forward of the at least one coulter wheel and rearward of the at least one front wheel, wherein the flighting helically coiled about the shaft of the second coiled conical blade is helically coiled in an opposite direction than a direction in which the flighting helically coiled about the shaft of the first coiled conical blade is helically coiled;
- a power sub-assembly coupled to the frame and the first and second coiled conical blades, the power sub-assembly comprising at least one motor operatively configured to counter-rotate the first and second coiled conical blades about their respective longitudinal axes of their respective shafts;
- and
- a handle bar sub-assembly coupled to the frame, the handle bar sub-assembly comprising at least one member extending rearward of the at least one rear wheel.
5 more elements
Dependencies are inferred from the claim text.