Rotor for snow thrower
AssigneeThe Toro Company
InventorsPaul Frederick Koltz, Brian Algot Hanson
Life of this patent
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Abstract
A snow thrower is disclosed including a rotor assembly having a first auger, a second auger, and a paddle disposed between the first and second augers The snow thrower also includes an intake housing having a first interior surface adjacent to the first auger and a second interior surface adjacent to the second auger, where an outer edge of the first auger has a clearance of less than 1 centimeter from the first interior surface across a sweep of at least 120 degrees, and an outer edge of the second auger has a clearance of less than 1 centimeter from the second interior surface across a sweep of at least 120 degrees.
Claims20
A snow thrower comprising:
- a rotor assembly having a first auger, a second auger, and a paddle disposed between the first and second augers, the rotor assembly fixed to a shaft and the shaft configured to rotate around an axis;
- an intake housing having a first interior surface adjacent to the first auger and a second interior surface adjacent to the second auger;
- wherein an outer edge of the first auger has a clearance of less than 1 centimeter from the first interior surface across a sweep of at least 120 degrees, and an outer edge of the second auger has a clearance of less than 1 centimeter from the second interior surface across a sweep of at least 120 degrees.
A snow thrower comprising:
- a rotor assembly having
- a shaft,
- an auger having a conveying surface and an outer edge, the outer edge defining an outer diameter of the auger, and
- a paddle having a throwing surface adjoining the conveying surface of the auger;
- and
- an intake housing having a clearance of less than 1 centimeter from the outer diameter of the auger through at least 120 degrees of rotation of the rotor assembly.
A snow thrower comprising:
- an intake housing;
- a rotor assembly having a first auger, a second auger, and a paddle disposed between the first and second augers, the rotor assembly fixed to a shaft and the shaft configured to rotate around an axis;
- the paddle having a throwing surface;
- the first auger having a leading end adjacent to a first side of the intake housing, a trailing end adjoining the throwing surface, and a conveying surface extending between the leading end and the trailing end;
- the second auger having a leading end adjacent to a second side of the intake housing, a trailing end adjoining the throwing surface, and a conveying surface extending between the leading end and the trailing end;
- wherein the conveying surfaces of the first and second augers extend at least 190 degrees of helix around the axis.
Dependencies are inferred from the claim text.