Mulcher with improved tooth design
AssigneeAttachment Technologies, Inc.
InventorJohn W. Edwards
Life of this patent
Estimating the term…
Abstract
A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing holder arrangements. The cutter element may include various features, to enhance cutting efficiency. For example, the cutter elements may include a double-ended structure, angle tab portions at each corner portion, carbide coatings, a pair of tip portions at each end with a space therebetween, and/or a generally H-shaped configuration.
Claims33
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion configured to be mounted on a cutter element receiving surface of a holder and a front portion including at least one cutter tip portion, said rear portion including at least two bores provided in the main body;
- a cross bar provided to and extending from the rear portion of the main body, said cross bar being structured to engage with a notch portion on the holder, said cross bar being positioned between said bores;
- and
- a lateral wing portion provided to each side or end of the cross bar, each lateral wing extending rearwardly beyond the cross bar, each lateral wing being adapted to be received within side notch portions of the holder.
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion configured to be mounted on a cutter element receiving surface of a holder and a front portion including at least one cutter tip portion, said rear portion including at least two bores provided in the main body;
- and
- a cross bar provided to and extending from the rear portion of the main body, said cross bar being structured to engage with a notch portion on the holder, said cross bar being positioned between said bores,
- wherein the main body is substantially rectangular and includes a plurality of corner portions with forwardly angled tab portions, each of said corner portions defining one said at least one cutter tip portion.
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion configured to be mounted on a cutter element receiving surface of a holder and a front portion including a substantially flat central portion flanked by lateral edges rearwardly angled towards the rear portion to minimize friction and/or interaction when passing debris, the lateral edges defining opposed planes that converge forward of the substantially flat surface of the main body, wherein the main body includes first and second opposed ends including at least one cutter tip portion.
A cutter element for a mulcher apparatus comprising:
- a main body having a first end including a pair of cutter elements with a gap provided therebetween;
- said main body having a generally flat central portion and rearwardly angled lateral edges,
- wherein each of said cutter elements has a tip portion positioned forward of a front surface of the main body, said tip portions being arranged and constructed to effect substantially simultaneous cutting action in use.
Dependencies are inferred from the claim text.