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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 |
| 7341115 | Soil aerator assembly In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in th... | 03/11/2008 |
| 7070005 | Soil aerator assembly In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in th... | 07/04/2006 |
| 7040520 | Fan motor suspension mount for a combustion-powered tool A motor mount for suspending a fan motor in a combustion-powered tool includes an inner ring for securing to the motor, an outer ring that is secured to a portion of the tool, and a web portion disposed between and connecting the inner ring and outer ring. The inner... | 05/09/2006 |
| 6997121 | Minimum tillage agricultural implement having furrow opening shank assemblies An agricultural implement for forming a furrow in a soil, is described and which includes a rotatable shank; a resilient, movement limiting member disposed in force transmitting relation relative to the rotatable shank; and a pair of wheels mounted for earth engagin... | 02/14/2006 |
| 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 |
| 6926093 | Mechanism for mounting a soil leveling device A mechanism for mounting a soil leveling device to the mounting arm of a leveling attachment operates in either a fixed setting or a floating setting. The mechanism includes a rearwardly extending carrier arm which carries the soil leveling device at its distal end.... | 08/09/2005 |
| 6751894 | Snow removal apparatus and method of removing snow An apparatus and a method for removing snow from a travel surface, including a wear member movably connected to a main blade or wing blade. In some embodiments, a fastener connected to the wear member extends through an aperture in the blade and is biased in a downw... | 06/22/2004 |
| 6684961 | Pitch adjustment for a tillage shank assembly A spring trip shank assembly with a fixed downstop includes a pivot area with an eccentric mechanism for varying the location of the shank pivot relative to the downstop so that shank position and tool pitch can be adjusted without need to change downstop... | 02/03/2004 |
| 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 |
| 6330922 | Bedding plow featuring a center-cut disk assembly having resilient relief means A bedding plow suited for forestry planting operations includes a plow frame that is attached to a tractor or other tow vehicle. The frame holds a pair of trailing disk assemblies that are arranged along opposite longitudinal sides of the bed being plowed... | 12/18/2001 |
| 6250397 | Spring trip standard with positive stop A spring trip standard for a tillage implement includes a coil spring freely 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 to the mount... | 06/26/2001 |
| 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 |
| 6065548 | Spring trip standard having reduced spring buckling forces A spring trip standard for a tillage implement includes a coil spring compressed between an upper spring-abutting surface on the mounting bracket and a lower spring abutment surface on a casting which is connected by a transverse pivot to the mounting bra... | 05/23/2000 |
| 5957216 | Resettable breakaway system A breakaway system which is easily reset by a user and does not utilize shear pins or spring loaded tension devices. The inventive device includes a support member having a U-shaped cross-sectional area, an inner member attached to the support member, an ... | 09/28/1999 |
| 5957217 | Strip tillage apparatus The present invention provides a shankless strip tillage tool for no-till preparation of surface soil for the planting of seeds. The strip tillage apparatus has a frame for mounting the apparatus to a tool bar mounted on a draft vehicle. The frame has a p... | 09/28/1999 |
| 5921010 | Flow blade operating system A plow blade operating system having a plow or scraper is configured to quickly and retractably overcome obstacles that are encountered during plowing, scraping, and leveling activities without the need to recharge or reset the system pressure after the o... | 07/13/1999 |
| 5816744 | Underwater cable burial machine having tripable plows A cable burying machine having three plow blades which are mounted on a rotating disk. The disk is restrained from movement in normal operation, but if the active plow blade encounters an obstacle which imposes more than a preset force on the blade, the d... | 10/06/1998 |
| 5794711 | Ground following opener apparatus A ground following opener is provided which includes a support frame, a parallelogram arrangement pivotably attached to the support frame, a tyne shank supported by the parallelogram arrangement and an opener supported at a free end of the tyne shank.... | 08/18/1998 |
| 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 |
| 5595249 | Ground leveler attachment for a ground working device A ground leveler attachment for a ground working device comprises a bracket fastened to a shank supporting a ground breaking tool, a carrier arm connected to the bracket, a pair of leg supports in pivotal contact with the carrier arm, a pair of springs bi... | 01/21/1997 |
| 5443126 | Grubber tine The invention relates to a grubber tine of a tubular cross-section which, as compared to known grubber tines, give reduced weight and larger flexure and vibrations when moved through the soil, which gives reduced tractive power. The grubber tine is adapte... | 08/22/1995 |
| 5437113 | Snow plow trip cutting edge A plow blade assembly including a moldboard, displaceable trip cutting edge connected to the moldboard, a moldboard receiving surface attached to the backside of the moldboard, a trip cutting edge contact surface attached to the backside of the trip blade... | 08/01/1995 |
| 5427183 | Deep tillage standard and bracket therefor A double spring reset standard and spring bracket therefor particularly useful for intermediate tillage operations at depths of approximately 13 inches wherein high average draft loads are in the range of 2000 pounds. The moment arm that the springs must ... | 06/27/1995 |
| 5398625 | Grain drill unit having seed firming wheel A seed firming wheel assembly is supported in close-coupled relationship with the rear portion of the paired discs of an opener to gently press deposited seeds down into the bottom of a V-shaped trench formed by the discs. The mounting arm of the assembly... | 03/21/1995 |
| 5154239 | Reversible plow with spring-biased trip shanks A reversible plow having a plurality of spring-biased trip assemblies for mounting moldboards to a tool bar, the trip assemblies having angled, elongate slots and a pivot pin extending therethrough and adapted to allow a tripped assembly to be reset witho... | 10/13/1992 |
| 4930431 | No-till field implement An implement for agricultural field work is primarily useful for preparing a field for no-till planting and comprises a wheel carried frame for carrying a massive fertilizer hopper which has apertures in its bottom portion through which fertilizer flows a... | 06/05/1990 |
| 4924946 | Apparatus for deep plowing highly compacted soil Apparatus for deep plowing highly compacted soil includes successively forming troughs of loosened soil immediately adjacent a previously formed trough. After each pass the plow leaves a trough of loosened soil having a transverse vertical profile (called... | 05/15/1990 |
| 4730678 | Heavy-duty trip mechanism for ground working implements Normally, spring loaded trip mechanisms increase in resistance and pressure as they move rearwardly. This device includes a swing arm above the shank with a roller engaging the upper surface of the shank. The tension springs extend from the swing arm to t... | 03/15/1988 |
| 4723608 | Depth sensing skid assembly A depth sensing skid arrangement for an implement including a spring steel depth skid connected to a shank which in turn is pivotally connected to a shank support bracket including a spring trip arrangement which permits backing of the implement without d... | 02/09/1988 |
| 4699221 | Chisel plow release mechanisms This invention relates to an automatic release mechanism for a cultivator which provides good resistance to release of the shank holder and which upon release causes the shank holder to rise to a good height to clear obstacles encountered during operation... | 10/13/1987 |
| 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 |
| 4548277 | Spring reset mechanism for tillage tool A spring reset mechanism for a ground engaging tool includes a four-bar linkage mounting for the tool. A fixed cam surface is mounted to one of the links and a roller cam carried by a guide link is spring-biased against the cam surface to urge the tool in... | 10/22/1985 |
| 4337832 | Lift system, steering system, and pivotal blade for land plane A land plane for leveling or grading the surface of a land area. The plane includes a frame defined by a center section and end sections pivotally connected to the center section, with each connection permitting relative physical movement about an axis tr... | 07/06/1982 |
| 4123859 | Shock absorbing system for suction dredgers A dragged suction dredger, comprising a suction pipe provided with a dragged suction head having a housing with a recessed suction nozzle and a cutting tool extending, in the cutting position, into the ground and being pivotally mounted on the housing and... | 11/07/1978 |
| 4117889 | Apparatus for guiding row crop processing implements A row crop planter supports at least two vertical guide making blocks to form superficial trenches about four or five inches deep precisely midway between adjacent rows as they are planted. Tires with trench-riding central ridges on front wheels of a trac... | 10/03/1978 |
| 4058169 | Automatically self-steering plow/harrow combination with release and reset mechanism connecting harrow to plow A plow/harrow combination comprising a harrow member extending sidewardly from a plow blade, the harrow teeth having an elongated cross section with the cross-sectional length axis inclined in relationship to the direction of travel, thus creating a compe... | 11/15/1977 |
| 4031966 | Operating and shock cylinder assembly for vehicle underbody scrapers and the like An operating and shock cylinder assembly for vehicle mounted underbody scraper and grader blades, plows and the like. The assembly of cylinders operates with hydraulic fluid and air, both under pressure, to move the blade or plow between retracted and roa... | 06/28/1977 |
| 4031968 | Cushioned push dozer device A resilient push dozer arrangement includes a push dozer transversely disposed at one end of a vehicle and a push arm rigidly secured to and extended from the dozer in juxtaposition to a longitudinally extending mounting frame of the vehicle. The distal e... | 06/28/1977 |
| 4011915 | Tool shank mounting assembly The tool shanks of an agricultural implement such as a cultivator or chisel plow are removably fixed to assemblies which include a holder pivotally connected to the rear side of a mounting member. The mounting member is recessed on its upper side and prov... | 03/15/1977 |
