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| Number | Title | Issue Date |
| 6564728 | High clearance shank An automatic spring-reset shank for agricultural use has a high retaining force and an improved trip clearance. The field use position of the shank is defined by a saddle in the mount weldment. The raised position of the shank is defined by the upper edge... | 05/20/2003 |
| 6250398 | Spring trip standard A spring trip standard for a tillage implement includes a coil spring freely and solely compressed between an upper spring-abutting surface on the mounting bracket and a lower spring-abutting surface on a casting which is connected by a transverse pivot t... | 06/26/2001 |
| 5724903 | Seed firming wheel support A support for a seed firming wheel of an agricultural planter. The support comprises a forked frame, a C-shaped link pivotally coupled to the forked frame and a spring positioned between the link and forked frame. The forked frame has a seed tube guard po... | 03/10/1998 |
| 5181573 | Seed bed packer implement A drawbar packer having an adjustable bias assembly which transfers implement weight between the wheels and the coil packers. Tension on extension springs is adjustable so that sufficient weight is transferred from the wheels to the coil packers such that... | 01/26/1993 |
| 4993695 | Flexible strut assembly A flexible strut device for supporting a pair of lifter wheels for a sugar beet harvester includes a mounting bracket secured to the tool bar of the sugar beet harvester. A fixed fulcrum plate is secured to the mounting bracket and is secured to a movable... | 02/19/1991 |
| 4947770 | Coulter and fertilizer applicator linkage arrangement A parallel linkage arrangement for supporting a coulter disc and liquid fertilizer applicator on an agricultural tool bar such that the coulter disc and the fertilizer applicator maintain the same relative relationship to the ground regardless of vertical... | 08/14/1990 |
| 4883126 | Ridge planter guide unit This invention relates to a planter guide attachment designed to hold and align conventional corn, soybean planters, or other units on the upper area of a ridge of soil formed by previous cultivation-ridging processes as known in Ridge-Till farming. The u... | 11/28/1989 |
| 4800964 | Compact shank assembly with leaf spring A compact, leaf spring biased shank assembly with a shank bracket which clamps to a tube and leaves the upper portion of the tube relatively unobstructed to eliminate interference with the lift mechanism and/or implement frame. The shank bracket includes ... | 01/31/1989 |
| 4759301 | Seed drill A seed drill which will allow seed to be planted at a substantially constant depth regardless of contours and irregularities in the ground surface. The said drill has a tyne pivotally mounted on a frame for angular movement about a substantially horizonta... | 07/26/1988 |
| 4564074 | Agricultural implement An agricultural implement such as a cultivator includes a support body and a ground treatment tool depending from the support body for pivotal movement forwardly to and rearwardly from a work position. Means is connected to the support body for biasing the too... | 01/14/1986 |
| 4564075 | Spring-loaded tillage implement A tillage implement for attachment to agricultural soil cultivation machinery. The tillage implement includes a knee having a knee body adapted to be attached to the agricultural machinery. A pivot arm is pivotably attached to the knee body and moves betw... | 01/14/1986 |
| 4505337 | Plow jump mechanism A jump mechanism for a plough having a frame and at least one digging shank, the jump mechanism includes a main draw bar pivotally coupling the shank to the frame so that the shank can pivot about each end of the bar and a movement control bar also pivota... | 03/19/1985 |
| 4399874 | Agricultural tool shank and spring release A plough shank having a rounded leading edge portion with a leading surface, a trailing portion, a web connecting the trailing and leading portions, an attachment mechanism at the top of the shank to enable attachment of the shank to a plough frame so tha... | 08/23/1983 |
| 4396070 | Pivotal disc gang section A disc gang section comprising a plurality of rotatable disc blades which are pivotally mounted as a unit to the horizontal upper gang tube of the disc frame so as to travel in an arc toward the rear of the disc implement when one or more of the blades of... | 08/02/1983 |
| 4321971 | Field cultivator tool support mounting apparatus A mounting apparatus for pivotally connecting a soil working tool to an agricultural tool bar. The mounting apparatus comprises a support bracket fastened to the tool bar by a U-bolt, a tool holding member which wraps around the tool and is pivotally conn... | 03/30/1982 |
| 4281719 | Spring loaded field cultivator tool support A mounting apparatus for pivotally attaching a cultivator tool to a frame member of mobile farm equipment comprising an upright support bracket, an extension spring, and a tool holder member which is pivoted with respect to the bracket. The tool holder me... | 08/04/1981 |
| 4203494 | Tool and disk mounting assembly A reversible mounting assembly for pivotally mounting a ground tool and a coulter disk from the tool bar of a soil tilling implement. The mounting assembly has a base plate that is reversibly attachable against the under surface of the tool bar in either ... | 05/20/1980 |
| 4184550 | Spring cushion mounting for beet harvesting device A spring cushioning mounting for beet harvesting devices to permit upward movement of the harvester should the same engage a rock or the like including an attachment, L-shaped member mounted on the carrier for the harvester to engage a tool mounting bar a... | 01/22/1980 |
| 4073347 | Spring-loaded clamp for an earth-working tool shank The upper end of a shank of an earth-working tool is secured to a frame or tool bar by a spring-loaded clamping arrangement which includes replaceable pin and bushing components in the pivot connection between the shank and a clamping member secured to th... | 02/14/1978 |
| 4064946 | Spring trip mechanism A device for mounting an earth working tool to a tool bar for allowing the earth working tool to move upwardly and rearwardly when it encounters an object which it cannot penetrate, rather than placing an undesirably high force on the earth working tool i... | 12/27/1977 |
| 4042039 | Rotary harrows A cultivator or harrow has an elongated frame and a row of rotatable soil working members pivoted to the frame for independent displacement when an obstacle is contacted. Each soil working member can be tined support having an upwardly extending shaft dri... | 08/16/1977 |
| 4011916 | Chisel plow mount A spring tooth chisel plow has its upper shank secured within a channel retainer pivotally mounted adjacent the rear edge of the retainer to a mounting bracket secured to a tool bar. The shank of the chisel plow is held within the channel retainer by a tr... | 03/15/1977 |
| 4005757 | Clamp shank device A clamp shank device designed particularly for attaching a chisel type of plowshare, cultivator blade, or the like to the draft frame of an agricultural implement includes a resiliently-biased clamping arrangement confining a shank member against lateral ... | 02/01/1977 |
| 4004640 | Hanger mechanism and sail engaging tool attached to tool bar thereby A hanger mechanism for the attachment of a soil engaging tool to a horizontal tool bar located at the forward end of an agricultural vehicle through a series of pivotally interconnected structures. The hanger mechanism includes an upper and lower arm stru... | 01/25/1977 |
| 3960220 | Subsoil plow This invention relates to a subsoil plow which includes a supporting frame having front and rear sides. A plurality of plow elements are mounted on the frame for pivotable movement on a horizontal axis in a direction fore and aft of the frame. The plow el... | 06/01/1976 |
