| Patents for A01B 61 - Devices for, or parts of, agricultural machines or implements for preventing overstrain (792) |
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| 06/28/1994 | US5323862 Moldboard plow trip |
| 06/22/1994 | EP0603044A1 Reversible plough with a frame pivoting transversely to the working plane |
| 06/15/1994 | CA2111374A1 Reversible plow with frame rotating across working area by 90 degrees |
| 04/14/1994 | DE4042401C2 Coupling for harvester to bracket of utility vehicle |
| 03/24/1994 | DE4231135A1 Machine for sowing seeds - has frame with articulations for joining sowing shares to frame and has protective rail extending over machine area |
| 02/02/1994 | EP0581127A1 Plow body suspension |
| 01/26/1994 | EP0580088A1 Grubber |
| 01/18/1994 | US5279236 Seed planter |
| 12/29/1993 | EP0576417A1 Driving device for reversible ploughe |
| 12/09/1993 | DE4218750A1 Prevention of damage to ploughshares - involves hydraulically operated hinged connection of ploughshare to beam by pivots mounted on fixed brackets |
| 11/03/1993 | EP0567750A1 Soil working machine, particularly a rotary harrow |
| 08/25/1993 | EP0556634A2 Agricultural implement |
| 08/19/1993 | DE4204170A1 Centrifugal fertilizer distributor machine - has two stage safety connection for power input |
| 08/05/1993 | DE4202771A1 Disc coulter used for ploughing - is equipped with overload bearing comprising inner profiled tube surrounded by outer polygonal tube with flexible padding between |
| 07/21/1993 | EP0552120A1 Mower with dynamic lightening device |
| 07/20/1993 | US5228522 Lift assist and cushion spring tool bar wheel for agricultural implements |
| 06/09/1993 | EP0545215A1 Plough |
| 05/27/1993 | WO1993009657A1 Reversible plough |
| 05/27/1993 | DE4139229A1 Schwenkpflug Swivel plow |
| 03/30/1993 | US5197552 Collapsible bar assembly for agricultural equipment |
| 03/23/1993 | US5195597 Soil penetrating tool assembly |
| 03/18/1993 | WO1993004573A1 Safety system for a symmetrical plough base |
| 03/17/1993 | EP0532492A1 Plough with a driving device |
| 03/09/1993 | US5191941 Suspension device for a plow |
| 01/27/1993 | EP0524454A1 Self-loading wagon |
| 01/21/1993 | DE4124145A1 Self-loading transport vehicle for stalks and leaves - has crop-cutter and feeder protected against overload by transducers stopping machinery when container is full |
| 01/19/1993 | CA1312746C Load sensing gearbox |
| 01/13/1993 | EP0522495A1 A mouldboard assembly for a plough |
| 12/02/1992 | EP0516005A1 Plough with an overload safety device for plough legs |
| 12/02/1992 | EP0516004A2 Hydromechanical overload safety device for conventional and reversible ploughs |
| 11/11/1992 | EP0512602A1 Mowing machine |
| 10/22/1992 | DE4138154C1 Fertiliser placing ground share - has curved cutting edge and includes pivot joint and yielding part |
| 10/13/1992 | US5154239 Reversible plow with spring-biased trip shanks |
| 09/17/1992 | DE4108210A1 Drill coulter which removes obstacles in its path - automatically retains its position and formation, and is composed of drills attached to spiral spring mounted on cross bar |
| 08/19/1992 | EP0499556A1 Agricultural soil working machine with an improved share for the lateral stabilization |
| 08/12/1992 | EP0498176A1 Ground working implement in the form of a reversible plough with overload safety |
| 07/23/1992 | WO1992011749A1 Mowers |
| 06/25/1992 | DE4040652A1 Agricultural machine for attachment to tractor - has input shaft which can be tilted or swung to disengage it from drive |
| 04/29/1992 | EP0317570B1 Plough with symmetrical bodies |
| 03/25/1992 | EP0476500A2 Device for attaching a mowing apparatus or other mechanical device to the bracket of a vehicle |
| 02/25/1992 | US5090307 Shear bolt coupling and method of replacing a shear bolt |
| 01/15/1992 | EP0465790A1 Rotary mower for front mounting on a tractor |
| 01/08/1992 | CN2092187U Pulley wheel type plow with rise-fall function |
| 12/31/1991 | CA1293673C Control system for an impact ripper |
| 12/17/1991 | US5072793 Ground-working implement |
| 12/05/1991 | DE4017647A1 Overload device for plough - comprises two leaf springs connecting ploughshares to frame through tensioning chains and tightened by bolts |
| 11/27/1991 | CN1014916B Control system for impact ripper |
| 09/25/1991 | EP0448442A1 Improvement to reversible ploughs, with a protection, mounted on each half body, against stones and overloading |
| 09/12/1991 | DE4104290A1 Adjustable spring device on reversible ploughs - protects plough-bodies when they encounter stone |
| 09/12/1991 | DE4104289A1 Plough with spring device - protects plough-bodies when they encounter stone |
| 09/11/1991 | EP0445439A1 Improved shear bolt coupling |
| 08/28/1991 | EP0443325A1 Hydraulic coupling means for power take-off shaft on tractors |
| 08/20/1991 | US5040616 Shank attachment |
| 07/25/1991 | DE4001398A1 Agricultural tractor coupling - is controlled by valve, hydraulic pump and electronic evaluator with coupling speed sensors |
| 07/09/1991 | US5030942 Process and device for measuring and indicating load conditions in drivelines of agricultural implements |
| 05/15/1991 | EP0427054A1 Reversible plough |
| 05/15/1991 | EP0426960A2 Hoeing machine for agricultural implement |
| 05/08/1991 | EP0248807B1 Arrangement for an implement intended for soil cultivation |
| 05/08/1991 | DE4032437A1 Reversible plough for arable field - incorporates mechanism for reliable tilting of beam using double shears lever linkage |
| 02/19/1991 | US4993695 Flexible strut assembly |
| 01/22/1991 | CA1279227C Furrow opener assembly with integral down-pressure adjustment |
| 01/15/1991 | US4984638 Plow with symmetrical bodies having concave vertical and horizontal cross-sections |
| 12/25/1990 | US4979603 Load sensing gearbox |
| 11/20/1990 | US4970848 Mower with release safety device |
| 10/31/1990 | EP0394830A1 Tractormounted agricultural tool, particularly circular mower |
| 10/31/1990 | DE4007426A1 Mowing machine adapting to uneven ground - has outer support beam fixed on inner support beam and swivelling about horizontal axis |
| 09/04/1990 | US4953411 Angular bevel gear drive for agricultural implements |
| 08/16/1990 | EP0382666A1 Mower with release safety device |
| 06/05/1990 | US4930431 No-till field implement |
| 04/19/1990 | WO1990003722A1 Tyne assembly and tyne |
| 02/13/1990 | US4900093 Impact ripper and control |
| 01/10/1990 | EP0350343A1 Hydraulic safety system for a plough |
| 12/13/1989 | EP0346319A1 Plough arrangement |
| 12/05/1989 | CA1263567A1 Seed drill |
| 09/12/1989 | US4865132 Tillage implement having independent depth control mechanism |
| 08/30/1989 | EP0330259A2 A soil cultivating machine |
| 08/29/1989 | US4860672 Trip mechanism for drill seed boot |
| 07/11/1989 | CA1257089A1 Self-tripping rippers |
| 06/21/1989 | EP0321031A1 A soil cultivating machine |
| 05/31/1989 | EP0317570A1 Plough with symmetrical bodies. |
| 05/09/1989 | US4828042 Coulter chisel tillage tool |
| 05/02/1989 | US4825957 Breakaway mechanism for a row marker |
| 10/11/1988 | US4776226 Power takeoff shaft for a farm tractor |
| 09/21/1988 | CN87107566A Control system for an impact ripper |
| 08/02/1988 | CA1239828A1 Hydraulic trip mechanism |
| 07/26/1988 | US4759301 Seed drill |
| 06/16/1988 | DE3641546A1 Pivoting device for mounted agricultural appliances, especially reapers |
| 05/19/1988 | WO1988003584A1 Control system for an impact ripper |
| 05/04/1988 | EP0266291A1 Cultivating and sowing combination |
| 04/28/1988 | DE3722687A1 Plough |
| 04/14/1988 | DE3633382A1 Drive device |
| 03/30/1988 | EP0261569A2 Sowing machine |
| 03/15/1988 | US4730678 Heavy-duty trip mechanism for ground working implements |
| 03/08/1988 | CA1233687A1 Chisel plow release mechanisms |
| 02/25/1988 | WO1988001129A1 Plough with symmetrical bodies |
| 02/24/1988 | EP0257008A1 Plough |
| 02/16/1988 | US4724910 In an agricultural implement |
| 02/10/1988 | CN86210703U Automatic obstacles-surmounting plough |
| 01/26/1988 | US4721048 Trash seeder |
| 01/05/1988 | CA1231005A1 Spring-loaded ground engaging tool |