Chopper knife with hardening coating
US-10455767-B2 · Oct 29, 2019 · US
Chopper blade with hard face
US11647698B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11647698-B2 |
| Application number | US-202017065055-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 7, 2020 |
| Priority date | Oct 7, 2020 |
| Publication date | May 16, 2023 |
| Grant date | May 16, 2023 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A chopper blade for use in an agricultural harvester chopper to chop crop residue comprises a blade body and a hard face. The blade body comprises a cutting edge of the chopper blade. The hard face is applied on a surface of the blade body, and is harder than the blade body. The hard face comprises a serration pattern along a cutting edge such that the cutting edge wears to the serration pattern to match the serration pattern to form corresponding serrations in the cutting edge with the serration pattern becoming part of the cutting edge of the chopper blade during use of the chopper blade.
First claim
Opening claim text (preview).
What is claimed is: 1. A chopper blade for use in an agricultural harvester chopper to chop crop residue, the chopper blade comprising: a blade body comprising a non-serrated cutting edge of the chopper blade, a hard face applied on a surface of the blade body, the hard face harder than the blade body, the hard face being a continuous layer along the blade body, the hard face comprising a serration pattern along the cutting edge such that the cutting edge wears to the serration pattern to match the serration pattern to form corresponding serrations in the cutting edge with the serration pattern becoming part of the cutting edge of the chopper blade during use of the chopper blade. 2. The chopper blade of claim 1 , wherein the hard face extends along the cutting edge longitudinally of the blade body. 3. The chopper blade of claim 2 , wherein the blade body comprises an attachment point to attach to a rotor of an agricultural harvester chopper and an end edge distal from the attachment point longitudinally of the blade body, and the hard face extends longitudinally of the blade body from the end edge. 4. The chopper blade of claim 1 , wherein the hard face comprises a first edge defining the serration pattern and a second edge spaced from the first edge laterally of the blade body, the first and second edges extend longitudinally of the blade body, and the second edge is straight. 5. The chopper blade of claim 1 , wherein the hard face comprises a first edge defining the serration pattern and a second edge spaced from the first edge laterally of the blade body, and the first and second edges extend longitudinally of the blade body in a zig-zag manner according to the serration pattern. 6. An agricultural harvester chopper comprising the chopper blade of claim 1 . 7. The agricultural harvester chopper of claim 6 , wherein the chopper blade is a flail chopper blade.
Assignees
Inventors
Classifications
- A01F29/09Primary
Details · CPC title
with feeding direction transverse to axis · CPC title
- A01D34/52Primary
Cutting apparatus · CPC title
- A01D41/1243Primary
Devices for laying-out or distributing the straw · CPC title
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Frequently asked questions
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- What does patent US11647698B2 cover?
- A chopper blade for use in an agricultural harvester chopper to chop crop residue comprises a blade body and a hard face. The blade body comprises a cutting edge of the chopper blade. The hard face is applied on a surface of the blade body, and is harder than the blade body. The hard face comprises a serration pattern along a cutting edge such that the cutting edge wears to the serration patter…
- Who is the assignee on this patent?
- Deere & Co
- What technology area does this patent fall under?
- Primary CPC classification A01F29/09. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 16 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).