Patents
Sitemap › A01 - Agriculture; Forestry; Animal husbandry; Hunting; Trapping; Fishing › A01B - Soil working in agriculture or forestry; Parts, details, or accessories of agricultural machines or implements, in general › A01B 63 - Lifting or adjusting devices or arrangements for agricultural machines or implements
Patents for A01B 63 - Lifting or adjusting devices or arrangements for agricultural machines or implements (3,360)
05/1982
05/11/1982CA1123255A1 Ground-working implement and lift linkage therefor
04/1982
04/29/1982WO1982001354A1 Electronic control of agricultural vehicles
04/27/1982US4326594 Raising and lowering mechanism for farm implement
04/13/1982US4324411 Implement level lift system
03/1982
03/02/1982US4317489 Ground-working implement and lift linkage therefor
02/1982
02/16/1982US4315548 Tractor with a traction load sensing device
02/02/1982CA1117626A1 Depth limit control system for agricultural implements
01/1982
01/26/1982CA1116943A1 Draft sensing apparatus
01/19/1982US4310997 Two point hitch construction
01/13/1982EP0043725A1 Control system for a tractor power lift system
01/05/1982US4308920 Ground working implement wherein forward frame portion raised before frame support engages ground
01/05/1982US4308919 Hinge-type offset wheel harrow
12/1981
12/30/1981EP0042547A2 Hydraulic circuit with a variable flow pump controlled by excess flow
12/22/1981US4306407 Lawn care device
12/22/1981CA1114915A1 Implement position indicator
12/10/1981WO1981003409A1 Self-leveling and height control hydraulic system
12/08/1981US4304303 Three-point hitch draft control
11/1981
11/24/1981US4301870 Device for electrohydraulically lifting agricultural implements
11/17/1981US4300638 Automatic position control apparatus for ground working vehicle
11/10/1981CA1112108A1 Track removing device
11/03/1981US4298071 Cultivator with parallel quadrant plates for positioning cultivating element
10/1981
10/27/1981CA1111304A1 Sensitivity adjusting apparatus
10/20/1981US4295530 Lower link draft sensing system on tractor
10/13/1981CA1110740A1 Rear drive assembly with load sensing
10/06/1981US4293040 Hydraulic draft load sensing system including quill shaft bendable in response to draft loads
10/06/1981US4292884 Control arrangement for a hydraulically operated device
09/1981
09/29/1981US4291638 Agricultural implements
09/23/1981EP0036203A1 Traction-resistance control for tractors
09/22/1981CA1109340A1 Agricultural implements
09/15/1981US4289208 Device for controlling agricultural implements mounted on an agricultural vehicle
09/08/1981CA1108728A1 Tractor hitch control system having safety features
09/01/1981US4286669 Draft sensing apparatus
08/1981
08/25/1981US4285268 Automatic sequencing valve and system
08/19/1981EP0033923A1 Electro-hydraulic control device for actuating the power lift of agricultural utility vehicles
07/1981
07/28/1981CA1105763A1 Device for lifting implements carried on agricultural tractors
07/21/1981US4279138 Vehicle with a lifting device responsive to ground irregularities
07/07/1981CA1104406A1 Draft sensing apparatus
06/1981
06/23/1981CA1103555A1 Tractor-implement hydraulic system
06/23/1981CA1103465A1 Device, especially for the use on grassed areas and the like
06/09/1981US4271910 Draft sensing device including load pin with free end
05/1981
05/26/1981CA1101723A1 Transport wheel assembly for implements
05/12/1981US4266616 Draft sensing apparatus wherein effect of vertical deflection reduced to insignificant levels compared to horizontal deflection
04/1981
04/07/1981US4260025 Device for automatically lifting and rapidly lowering tractor implements
04/07/1981US4260024 Device for lifting implements carried on agricultural tractors
04/07/1981CA1098758A1 Tractor
04/01/1981EP0026097A1 Agricultural implement and method of lifting same
03/1981
03/31/1981US4258484 Implement position indicator
03/03/1981US4253331 Force measuring device
02/1981
02/24/1981US4252198 Ground levelling attachment for tractors
02/17/1981US4250970 Automatic coulter depth control
02/03/1981US4248310 Skip row cultivators
01/1981
01/27/1981US4246832 Control arrangement for a hydraulic force transmission
01/22/1981WO1981000035A1 Draft sensing apparatus
01/13/1981CA1093371A1 Apparatus for synchronizing the steering disc and row follower means of a row crop implement
01/07/1981EP0021646A1 Tractor power lift mechanism
01/06/1981US4242942 Hydraulic positioner with feedback device
12/1980
12/30/1980CA1092422A1 Work implement mounting structure
12/16/1980US4239086 Lifting mechanism with cam
12/09/1980US4237985 Track removing device
12/02/1980CA1090646A1 Soil cultivating machines
11/1980
11/13/1980WO1980002355A1 Tractor hydraulic control systems
11/04/1980US4231433 Cultivator with tool support arm and latch for holding same in raised non-working position
11/04/1980US4231432 Position and draft control system for plows
10/1980
10/21/1980US4228861 Folding track removing implement
10/21/1980US4228860 Apparatus for synchronizing the steering disc and row follower means of a row crop implement
10/15/1980EP0017418A1 Tractor lower link draft sensing system
09/1980
09/17/1980EP0015795A1 Three point-linkage for use at the front or at the rear of all engines or vehicles
09/09/1980US4221266 Digital memory depth tillage system
09/09/1980CA1085216A1 Torsion bar draft load limit and preload adjuster
09/09/1980CA1085215A1 Moldboard plow
09/02/1980US4220209 Plow with improved tool raising construction
08/1980
08/19/1980US4217943 Lug tire for agricultural machines
07/1980
07/29/1980US4214637 Elevation altering structure for agricultural implements
07/29/1980US4214634 Arrangement for coupling a cultivating attachment to a cultivating machine
07/08/1980CA1081022A1 Implement with compensation for terrain irregularities
07/01/1980CA1080538A1 Tool suspension
06/1980
06/17/1980US4207951 Two-way, multiple bottom plow with lift assist
06/10/1980US4206813 Draft sensing apparatus
05/1980
05/06/1980CA1076963A1 Tractor vehicle in particular for agricultural use
05/06/1980CA1076887A1 Depth control for ground working agricultural implements
04/1980
04/22/1980CA1075957A1 Steering device for row crop cultivator
04/15/1980US4198074 Work implement mounting structure
03/1980
03/25/1980US4194573 Agricultural subsoil implement including flow divider for wheel assemblies
03/25/1980CA1074151A1 Force measuring devices
03/18/1980US4193458 Tractor and implement and hydraulic system therefor
02/1980
02/20/1980EP0008172A1 Draft sensing apparatus
02/05/1980US4186805 Ground working implement
01/1980
01/29/1980US4185697 Torsion bar draft load limit and preload adjuster
01/22/1980US4184551 Steering device for row crop cultivator
12/1979
12/25/1979US4180005 Tiller planter with modified soil leveling and pulverizing unit
12/04/1979US4176721 Depth control for ground working agricultural implements
11/1979
11/27/1979US4175765 Parallel hitch for a belly mounted tractor appliance
11/13/1979CA1066111A1 Draft and position control linkage with depth limit for a tractor
11/06/1979US4173259 Rear drive assembly with load sensing
10/1979
10/23/1979US4171723 Crop uprooting and soil cultivating apparatus and method for use of same
10/09/1979CA1064145A1 Load control for engine of vehicle for agricultural work with rotary working implement
10/03/1979EP0004354A1 Hydraulic positioning device with a feedback arrangement
08/1979
08/28/1979CA1061162A1 Disc harrow wheel lock-down with depth control adjustment means
07/1979
07/25/1979EP0003077A1 A tractor draft load monitoring system
07/10/1979US4160485 Tractor with draft load control system
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