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| Number | Title | Issue Date |
| 7395767 | Ground engaging apparatus A ground engaging apparatus (10) has a support plate (50) pivotally attached to a frame (100); a pair of arms (30, 40) interconnecting the support plate (50) and a shank support (60), which supports a shank (70) and g... | 07/08/2008 |
| 7261048 | Parallel link trailing arm for seeders A furrow opener apparatus includes a parallel link trailing arm having a rear link that is maintained substantially horizontal as the arm moves up and down. Front and rear furrow openers are attached to the rear link. A packer wheel arm is attached to the rear link ... | 08/28/2007 |
| 6986313 | Dual material agricultural delivery system for seeder A compression system for a dual material delivery assembly for mounting on a frame alongside a plurality of similar assemblies is described. The assembly includes a furrowing knife for producing a furrow in the ground as it is towed across the ground. A fertilizer t... | 01/17/2006 |
| 6142085 | Hydraulic compression system for seeder A compression system for a dual material delivery assembly is described. The assembly includes a furrowing element for producing a furrow in the ground as it is towed across the ground. A fertilizer tube and a seed tube are provided for depositing fertili... | 11/07/2000 |
| 6098722 | Versatile implement system A versatile implement system utilizing a single implement structure that is capable of being utilized as a grain planter, row crop planter, tiller or anhydrous applicator. The inventive device includes a conventional implement frame, a bracket, a pair of ... | 08/08/2000 |
| 5809915 | Contouring dry land seed drill A seed drill particularly adapted for contouring uneven ground and accommodating rocks, especially where depth of furrow and placement of seed against wet soil is critical, as in dry land farming. Each drill in a set of drills is a separate unit which is ... | 09/22/1998 |
| 5727638 | Down pressure system with free float extension An opener for use in varying ground conditions, ranging from no-till to conventional full tillage conditions, includes an adjustable down pressure control and a down pressure spring and tension link assembly which selectively provide a limited free float ... | 03/17/1998 |
| 5072793 | Trip assembly A trip assembly for a ground-working implement includes a rigid toggle member and a spring toggle member that are pinned, respectively, at a first point to a ground-engaging tool and at a second point to a frame. The rigid toggle member and the spring tog... | 12/17/1991 |
| 4860672 | Trip mechanism for drill seed boot A seed drill including depending furrow openers having a lower shovel and a supporting seed boot. Each seed boot is pivotally supported on a longitudinal drag bar assembly connected to it about a transverse pivotal connection. The forwardly extending arm ... | 08/29/1989 |
| 4831945 | Opener assembly with depth gauging from a press wheel Relatively simple opener assembly structure for maintaining a generally constant vertical relationship between an opener and a trailing press wheel. The structure provides benefits of a parallel linkage design but obviates the extra links of, and provides... | 05/23/1989 |
| 4750440 | Hoe-opener assembly A hoe-opener assembly having a "float" feature is disclosed. The present invention ties operation of several hoe openers to a common framework so that uniform depth control can be maintained. The hoe-opener assembly of the present invention is drawn behin... | 06/14/1988 |
| 4745978 | Mounting arrangement for a coulter and knife A mounting arrangement for a coulter and knife which are mounted on separate collars on a vertical shank with the knife movable in the same vertical plane as the coulter including a locking mechanism which connects the mounting collars of the knife and co... | 05/24/1988 |
| 4694759 | Seed drill A seed drill for applying seed and/or fertilizer has a frame, reservoir, and sowing shares. The sowing shares are attached to the frame in such a way that they can move in an upright plane by means of superimposed and at least approximately parallel strut... | 09/22/1987 |
| 4607581 | Furrow opener for seeder A furrow opener shank for use with seeders has seed outlets and fertilizer outlets at the lower end thereof, and includes a sealer plate which will permit the depositing of anhydrous ammonia or liquid fertilizer in a deep furrow and which positively seals... | 08/26/1986 |
| 4417530 | Planting apparatus A device for planting seed and applying fertilizer including a frame adapted to be moved over the ground and a furrow opener shank carried on the frame. A first delivery tube is provided in the shank for fertilizer and has a lower end disposed to a first ... | 11/29/1983 |
| 4353423 | Hydraulic reset for tillage and seeding equipment An hydraulic ram is situated between the tillage tool and the frame and is normally fully extended and acts as a rigid link. The ram has a predetermined and adjustable pressure so that if an obstruction is encountered by the tool, it only retracts when th... | 10/12/1982 |
| 4294181 | Subsoil agricultural implement with rotatable disc A subsoil implement is disclosed that utilizes a horizontally rotatable disc that is moved beneath the surface of the ground for the purpose of cultivating or for producing a sub-surface bed for placing flowable material such as seed or soil treating gas ... | 10/13/1981 |
| 4265186 | Grain drill with oscillating planter bar An apparatus and a method for planting seed are disclosed. The apparatus comprises frame carried by a plurality of ground engaging wheels. Carried on the frame is a means for raising and lowering the frame with respect to the ground. A planter bar having ... | 05/05/1981 |
| 4208974 | Seed drill having parallel guide means for the movable shank A seed drill (FIG. 1 ) having a frame (1 ) with knife hoes (7 ) mounted thereon. The knife hoes are movable in a vertical plane and each has two laterally projecting wings (8 ) bent downwardly toward one another; the outer edges of the wings merge forward... | 06/24/1980 |
