Flexible cutting blade for grass trimmers and rotary mowers
AssigneeAero-Flex Technologies, Inc.
InventorVincent D. Morabit
Life of this patent
Estimating the term…
Abstract
A cutting blade for a rotating trimmer includes a loading section at a proximal end securable to the rotating trimmer, a flexible hinge section extending from the loading section, and a transition section extending from the flexible hinge section. A cutting section extends from the transition section to a distal end. The transition section and the cutting section are tapered at a taper angle toward the distal end. In some variations, a mass of the transition section is greater than a mass of the cutting section, and a center of gravity based on a mass of the cutting blade may be positioned closer to the loading section than the cutting section.
Claims19
A cutting blade for a rotating trimmer, the cutting blade comprising:
- a loading section at a proximal end securable to the rotating trimmer;
- a flexible hinge section extending from the loading section;
- a transition section extending from the flexible hinge section;
- and
- a cutting section extending from the transition section to a distal end,
- wherein the transition section and the cutting section are tapered at a taper angle toward the distal end, and wherein the cutting section is configured to wear via use such that one side of the cutting section tapers at a use angle greater than the taper angle.
A cutting blade for a rotating trimmer, the cutting blade comprising:
- a loading section at a proximal end securable to the rotating trimmer;
- a flexible hinge section extending from the loading section;
- a transition section extending from the flexible hinge section;
- and
- a cutting section extending from the transition section to a distal end,
- wherein the transition section and the cutting section are tapered at a taper angle toward the distal end, and wherein one side of the cutting section tapers at a use angle greater than the taper angle such that the cutting blade is configured for only clockwise rotation or only counterclockwise rotation.
A method of manufacturing a cutting blade for a rotating trimmer, the method comprising:
- (a) forming a loading section at a proximal end securable to the rotating trimmer;
- (b) forming a flexible hinge section extending from the loading section;
- (c) forming a transition section extending from the flexible hinge section;
- and
- (d) forming a cutting section extending from the transition section to a distal end,
- wherein steps (c) and (d) are practiced such that the transition section and the cutting section are tapered at a taper angle toward the distal end, and wherein step (d) comprises configuring the cutting section to wear via use such that one side of the cutting section tapers at a use angle greater than the taper angle.
A method of manufacturing a cutting blade for a rotating trimmer, the method comprising:
- (a) forming a loading section at a proximal end securable to the rotating trimmer;
- (b) forming a flexible hinge section extending from the loading section;
- (c) forming a transition section extending from the flexible hinge section;
- and
- (d) forming a cutting section extending from the transition section to a distal end,
- wherein steps (c) and (d) are practiced such that the transition section and the cutting section are tapered at a taper angle toward the distal end, and wherein step (d) comprises tapering one side of the cutting section at a use angle greater than the taper angle.
Dependencies are inferred from the claim text.