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US 11,707,006 B2Granted
Land clearing attachment and rotor for the same
OwnerMark G. Bowlinginventor
Life of this patent
Estimating the term…
Abstract
A land clearing attachment for a tractor device includes semi-helically oriented teeth, knives, or blades radially outward from an outer surface of a rotor. Each tooth, knife, or blade is part of a row of teeth, knives, or blades. Each row is oriented with an offset angle such that the spirally orientation completes angular offset of about 90° or less.
Claims19
A land clearing attachment comprising:
- a housing including a connecting mechanism for connection with a tractor device and adapted to enable the tractor device to carry the land clearing attachment;
- a rotor rotatably supported by the housing, the rotor having a first end opposite a second end and a cylindrical sidewall extending from the first end to the second end defining an outer surface, and the rotor adapted to rotate about an axis and rotation of the rotor about the axis is powered by the tractor device;
- a first row of knives connected to the cylindrical sidewall and positioned radially outward from the outer surface relative to the axis;
- and
- wherein the first row of knives is offset at an angle from the first end to the second end such that the first row of knives wind semi-helically around the outer surface of the rotor;
- a holder connected to one knife and connected to the cylindrical sidewall, wherein the one knife is within the first row of knives;
- and
- at least two edges on the one knife, wherein the one knife is releasably attached to the holder and adapted to be moved when one of the edges dulls so the other of the at least two edges becomes a leading cutting edge.
5 more elements
A land clearing attachment comprising:
- a housing including a connecting mechanism for connection with a tractor device and adapted to enable the tractor device to carry the land clearing attachment;
- a rotor rotatably supported by the housing, the rotor having a first end opposite a second end and a cylindrical sidewall extending from the first end to the second end defining an outer surface, and the rotor adapted to rotate about an axis and rotation of the rotor about the axis is powered by the tractor device;
- a first row of knives connected to the cylindrical sidewall and positioned radially outward from the outer surface relative to the axis;
- and
- wherein the first row of knives is offset at an angle from the first end to the second end such that the first row of knives wind semi-helically around the outer surface of the rotor;
- wherein at least one knife in the first row of knives includes:
- a top surface spaced from a bottom surface, wherein the at least one knife is shaped as a generally inverted frusto-square pyramid;
- and
- a tapered wall extending between the top surface and the bottom surface at angle in a range from about 30° to about 60° relative to a screw axis that is perpendicular to the axis of the rotor.
6 more elements
A land clearing attachment comprising:
- a housing including a connecting mechanism for connection with a tractor device and adapted to enable the tractor device to carry the land clearing attachment;
- a rotor rotatably supported by the housing, the rotor having a first end opposite a second end and a cylindrical sidewall extending from the first end to the second end defining an outer surface, and the rotor adapted to rotate about an axis;
- at least one knife carried by the rotor, wherein the knife includes:
- at least two sharpened edges adapted to cut materials during land clearing or mulching;
- a top surface spaced from a bottom surface, wherein the at least one knife is shaped as a generally inverted frusto-square pyramid;
- a tapered sidewall defining one sharpened edge extending between the top surface and the bottom surface at angle in a range from about 30° to about 60°;
- an aperture defined from the top surface to the bottom surface configured to align with a hole formed in the rotor;
- and
- wherein the at least one knife is adapted to be moved to change a leading cutting edge of the knife when the one sharpened edge becomes dull.
6 more elements
Dependencies are inferred from the claim text.