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US 6,032,593 AGranted
Grain drill opener with separate placement and a concave disk therefor
AssigneeDeere & Company
InventorsIgnatz Wendling, Lyle Eugene Stephens
Life of this patent
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AssigneeDeere & Company
InventorsIgnatz Wendling, Lyle Eugene Stephens
Estimating the term…
A combination seed and fertilizer opener having separate placement includes a first angled flat disk with a gauge wheel arrangement providing an initial furrow for a first material such as fertilizer. A second opener disk, smaller than the first and concave rather than flat, includes an edge that projects forwardly along the trailing side of the first disk to a forwardmost edge location adjacent the hub of the first disk. The hub of the concave disk is very closely adjacent the trailing edge of the large disk. A tube and boot assembly terminates within the concavity of the second disk near the rear periphery of the first disk. The concave disk forms a seed furrow to receive seed or second material from the tube and boot assembly. The front of the concave disk runs in undisturbed soil but is sufficiently close to the fertilizer furrow to press and cover the fertilizer. The second disk concavity also prevents excessive soil throw. The boot lies within the shadow of the large disk so that the boot does not have to push soil aside but acts primarily to prevent dirt from prematurely filling in the second furrow. A closing wheel is supported from the opener assembly directly behind the large disk and is angled to toward the concavity of the second disk to break soil from the seed furrow wall and close the seed furrow. The concave disk not only provides closing and furrowing functions with limited soil throw but also provides a compact bearing-receiving area. The edge of the concave disk is beveled on the inside of the concavity, opposite that of a conventional concave disk, to reduce forces necessary to form the seed furrow and cover the fertilizer.
A minimum tillage disk opener assembly for depositing two materials in furrows in the soil in a single pass operation as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk having a leading surface and a trailing surface and defining a shadow area rearwardly of the trailing surface, the first angled disk forming a first furrow in the soil, and tube structure for depositing a first material in the first furrow;
A minimum tillage disk opener assembly for depositing two materials in furrows in the soil in a single pass operation as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk having a leading surface and a trailing surface and defining a shadow area rearwardly of the trailing surface, the first angled disk forming a first furrow in the soil, and tube structure for depositing a first material in the first furrow;
A minimum tillage disk opener assembly for depositing two materials in furrows in the soil in a single pass operation as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk having a leading surface and a trailing surface and defining a shadow area rearwardly of the trailing surface, the first angled disk forming a first furrow in the soil, and tube structure for depositing a first material in the first furrow, a second disk supported from the drawbar and overlapping the first angled disk in the forward direction, the second disk having a furrow opening portion lying in the shadow area of the first disk and forming a second furrow in the soil for receiving a second material and covering the first furrow as the second furrow is formed, and boot structure depositing the second material in the second furrow at a location offset from the deposited first material, wherein the covering of the first furrow prevents contact between the first and the second materials;
A disk opener assembly for depositing material in the soil as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk forming a first furrow in the soil, the first angled disk defining leading and trailing disk surfaces and a protective shadow area behind the trailing surface, tube structure for depositing a first material in the first furrow;
A disk opener assembly for depositing material in the soil as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk forming a first furrow in the soil, the first angled disk defining leading and trailing disk surfaces and a protective shadow area behind the trailing surface, tube structure for depositing a first material in the first furrow;
A dual placement opener assembly for depositing first and second materials in the soil as the opener assembly moves in a forward direction over the ground, the opener assembly including a drawbar, a first furrow forming device forming a first furrow in the soil, tube structure for depositing the first material in the first furrow, a trailing disk supported from the drawbar, the trailing disk having a leading edge portion forming a second furrow in the soil offset above and to one side of the first furrow for receiving the second material, the trailing disk covering the first furrow as the second furrow is formed, and boot structure depositing the second material in the second furrow, wherein the trailing disk is concave and the boot structure lies substantially within the concavity of the trailing disk.
A disk opener assembly for depositing material in the soil as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk forming a first furrow in the soil, the first angled disk defining leading and trailing disk surfaces and a protective shadow area behind the trailing surface, tube structure for depositing a first material in the first furrow;
A disk opener assembly for depositing material in the soil as the opener moves in a forward direction over the ground, the disk opener assembly including a drawbar, a first angled disk forming a first furrow in the soil, the first angled disk defining leading and trailing disk surfaces and a protective shadow area behind the trailing surface, tube structure for depositing a first material in the first furrow;
Dependencies are inferred from the claim text.