Replaceable Edge for Cutting Blades
AssigneeNew Edge LLC
InventorJames Lindmeyer
Life of this patent
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Abstract
A cutting blade apparatus includes a blade and a replaceable cutting edge component that is removably engageable with the blade. The cutting blade apparatus may be used in a variety of cutting applications, and in some embodiments may be useful in rotary lawn mower applications. The replaceable cutting edge components may present a profile useful in vegetation mowing and mulching applications. The cutting blade apparatus of the present invention facilitates the maintenance of high-quality cutting edges without the need to disassemble the blade from its mounting.
Claims20
A motorized cutting apparatus, comprising:
- (a) a blade having a tubular portion;
- and
- (b) a replaceable cutting edge component having a first portion including a first cutting edge, and a second portion that is removably engageable with said tubular portion of said blade to operably orient such cutting edge for cutting upon propulsion of said blade.
A cutting blade apparatus, comprising:
- (a) a blade having a leading edge with a leading surface and a trailing surface, and a slot providing an opening from said leading surface to said trailing surface;
- and
- (b) a replaceable cutting edge component having a first portion including a cutting edge, and a second portion that is removeably engageable through said slot to operably retain said first portion of said cutting edge component in proximity to said leading surface of said blade and said second portion in contact with said trailing surface of said blade.
A cutting blade apparatus adapted for cutting target materials substantially along a cutting plane, said apparatus comprising:
- (a) a blade having first and second end portions separated by a central portion;
- and
- (b) a replaceable cutting edge component removably engageable with at least one of said first and second end portions, and having a first portion and a second portion, said first portion including:
- (i) a cutting portion defining a cutting edge and having a first surface extending from said cutting edge to an intersection zone along a first plane that is upwardly angled by a first angle with respect to said cutting plane;
- and
- (ii) a lift portion having a second surface extending from said intersection zone to a top edge along a second plane that is upwardly angled by a second angle with respect to said cutting plane.
Dependencies are inferred from the claim text.