Planter row unit with load sensing depth stop assembly
US-2024298567-A1 · Sep 12, 2024 · US
Seed flow regulator
US12568875B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12568875-B2 |
| Application number | US-202318151572-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 9, 2023 |
| Priority date | Jan 23, 2017 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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- Title
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- Abstract
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- Assignees and inventors
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Abstract
Official abstract text for this publication.
A mini-hopper for an agricultural row unit that has a fill tube supplying material to a hopper. A backflow preventer is disposed in the fill tube or in a line to the inlet to prevent flow of material from the mini-hopper through the fill tube when the mini-hopper is in a transport position.
First claim
Opening claim text (preview).
What is claimed is: 1 . A row unit of a planter comprising: a frame configured to rotate between an operating position and a transport position; a hopper supported by the frame; an inlet connected to the hopper; a fill tube supplying the hopper via the inlet, wherein the fill tube is vertical with respect to the ground when the frame is in the transport position and the fill tube is angled from vertical with respect to the ground when the frame is in the operating position; and a backflow preventer movably coupled within the fill tube, the backflow preventer comprising a flap that closes the fill tube when the frame is in the transport position to prevent flow from the fill tube to the inlet. 2 . The row unit of claim 1 , wherein the flap is pivotably disposed in the fill tube to open when flow is from the inlet to the hopper. 3 . The row unit of claim 1 , wherein the flap is pivotably disposed in the fill tube to close under gravity when the row unit is raised to a transport position. 4 . The row unit of claim 1 , wherein the flap comprises a self-opening valve that opens when a desired amount of pressure difference across the valve is applied.
Assignees
Inventors
Classifications
foldable about a horizontal axis · CPC title
- A01C7/082Primary
Ducts, distribution pipes or details thereof for pneumatic seeders · CPC title
- A01C15/006Primary
Hoppers · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12568875B2 cover?
- A mini-hopper for an agricultural row unit that has a fill tube supplying material to a hopper. A backflow preventer is disposed in the fill tube or in a line to the inlet to prevent flow of material from the mini-hopper through the fill tube when the mini-hopper is in a transport position.
- Who is the assignee on this patent?
- Prec Planting Llc, Agco Do Brasil Sa Ltda, Agco Do Brasil Solucoes Agricolas Ltda
- What technology area does this patent fall under?
- Primary CPC classification A01C7/082. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 10 2026 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).