Rotary cutting blade
OwnerBryce Metcalf, Andrew Joestgen +1inventors
InventorsBryce Metcalf, Andrew Joestgen, James Marshall
Life of this patent
Estimating the term…
Abstract
A rotary cutting blade includes a cutting edge, a lift wing that arcs or angles upwardly from the cutting edge and defines a leading end from which the cutting edge extends and a trailing end, and a wing tail that extends from the trailing end of the lift wing in a direction away from the cutting edge.
Claims23
A rotary cutting blade for a lawn mower, the rotary cutting blade comprising:
- a cutting edge;
- a lift wing that arcs or angles upwardly from the cutting edge, wherein the lift wing defines a leading end from which the cutting edge extends and a trailing end;
- and
- a wing tail that extends from the trailing end of the lift wing in a direction away from the cutting edge.
A rotary cutting blade for a lawn mower, the rotary cutting blade comprising:
- a body including a cutting edge defining a cutting plane, a lift wing, and a wing tail, wherein a cross-sectional profile of the body taken along a direction parallel to a cutting direction and through the wing tail includes:
- a cutting portion that extends in a direction parallel to the cutting plane;
- a lift wing portion that angles or arcs upwardly away from the cutting plane;
- and
- a tail portion that extends along the wing tail from a trailing end of the lift wing in a direction away from the cutting edge at an angle that is approximately parallel to the cutting plane.
(canceled)
21-24. (canceled)
A rotary cutting blade for a lawn mower, the rotary cutting blade comprising:
- a body including a cutting edge, a lift wing, and a wing tail that extends from a trailing end of the lift wing in a direction away from the cutting edge,
- wherein the lift wing is arranged between the cutting edge and the wing tail, and wherein the lift wing defines an inflection point along the body where the body transitions from concave up to concave down.
26-49. (canceled)
Dependencies are inferred from the claim text.