| Patents for E02F 9 - Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups (23,883) |
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| 03/28/1991 | DE4017107A1 Continuously operating open-cut mining device |
| 03/26/1991 | US5002454 Intuitive joystick control for a work implement |
| 03/26/1991 | US5002332 Cabin construction of wheel loader |
| 03/21/1991 | WO1991003654A1 Pivot joint for loader linkages and the like |
| 03/21/1991 | WO1991003651A1 Speed change controller of running hydraulic motor |
| 03/21/1991 | WO1991003606A1 Steering device of power shovel |
| 03/19/1991 | CA1281612C Brake circuit apparatus for hydraulic motor |
| 03/14/1991 | DE4026695A1 Hydraulic fluid flow control for industrial vehicle - has coupling on=off sensor allowing required discharge capacitance of hydraulic fluid to be maintained |
| 03/13/1991 | EP0416180A1 Apparatus for limiting the swing of a swing type work machine such as a crane or hydraulic shovel |
| 03/13/1991 | EP0416130A1 Hydraulic valve capable of pressure compensation |
| 03/13/1991 | EP0415962A1 A vehicle arresting device. |
| 03/13/1991 | CN1011995B Hard alloy cutter bit |
| 03/12/1991 | CA1281259C Load sensing circuit of load responsive direction control valve |
| 03/07/1991 | WO1991002905A1 Hydraulic driving apparatus of civil engineering/construction equipment |
| 03/07/1991 | WO1991002904A1 Pressure oil feed circuit device for hydraulic cylinder of operation machine |
| 03/07/1991 | WO1991002902A1 Valve device and hydraulic circuit device |
| 03/07/1991 | WO1991002853A1 Automatic excavation control system and method |
| 03/07/1991 | DE4007470C1 Length compensator for hydraulic hose - consists of flexible section with loop between relatively hinged supports |
| 03/06/1991 | EP0415133A1 Hydraulic circuits for actuators |
| 03/06/1991 | EP0414918A1 Parking brake circuit of hydraulically driven vehicle |
| 03/06/1991 | EP0414751A1 Bit assembly utilizing carbide insert. |
| 03/06/1991 | CN2072547U Fast exchanging sleeving bucket tooth |
| 03/06/1991 | CN2072546U Hydraulic shovel slewing system with reclaiming brake energy |
| 03/01/1991 | CA2021922A1 Powers transmission |
| 02/27/1991 | EP0414345A2 Wear parts for excavation apparatus |
| 02/27/1991 | EP0413735A1 Material handling machine |
| 02/27/1991 | CN1011803B Dipper teeth of digging machine |
| 02/27/1991 | CN1011802B Controlling system of hydraulic architectural machinery |
| 02/26/1991 | US4995517 Mechanism for suppressing vibrations of travelling crane |
| 02/26/1991 | US4995176 Replaceable wear element, assembly and method |
| 02/26/1991 | CA1280670C Hydraulic hose routing for tractor-mounted backhoe |
| 02/21/1991 | WO1991002167A1 Device for controlling hydraulic pump |
| 02/21/1991 | WO1991002162A1 Hydraulic pump control device for construction machinery |
| 02/21/1991 | WO1991002125A1 Linear excavation control apparatus in hydraulic excavator |
| 02/20/1991 | CN1011726B Method and system for controlling an engine |
| 02/13/1991 | EP0412423A2 Belt transmission for very small size shovel car |
| 02/13/1991 | EP0412402A1 Control method for earth-moving machines |
| 02/13/1991 | EP0412400A1 Collision safety device for earth moving machines |
| 02/13/1991 | EP0412399A1 Dug volume control for a bucket wheel excavator |
| 02/13/1991 | EP0412398A1 Dug volume measure according to the cutting profile of a bucket wheel excavator or the like |
| 02/13/1991 | EP0412395A1 Bucket wheel excavator steering for building planned surfaces |
| 02/13/1991 | EP0412186A1 Excavating tooth |
| 02/12/1991 | US4991322 Device for affixing cutter drums to an apparatus intended for cutting trenches in the ground |
| 02/12/1991 | CA1280137C Excavating tooth |
| 02/07/1991 | WO1991001414A1 Coupling of drive systems to an accessory of an excavator or the like |
| 02/07/1991 | WO1991001413A1 Adjustable swivelling joint for an excavator or the like |
| 02/07/1991 | WO1991001313A1 Process for producing dipotassium ascorbate-2-sulphate |
| 02/06/1991 | EP0411486A1 Digging tooth |
| 02/06/1991 | EP0411151A1 Hydraulic circuit for working machines |
| 02/06/1991 | CN1011526B Hydraulic transmission system |
| 02/05/1991 | US4990842 Operation control method and device for construction machine |
| 02/05/1991 | US4989999 Empty-center rotating-roller joint |
| 02/05/1991 | US4989567 Engine speed controlling system in construction machine |
| 01/30/1991 | EP0410053A1 Method of controlling the slewing operation of a slewing mechanism and a hydraulic control system for carrying out the same |
| 01/29/1991 | CA1279679C Excavating tooth assembly |
| 01/29/1991 | CA1279554C Auxiliary coupler pressure relief hydraulic system |
| 01/24/1991 | WO1991000859A1 Method of producing dipotassium-ascorbate-2-sulphate |
| 01/24/1991 | WO1991000742A1 Soluble human b-cell interleukin-1 receptor |
| 01/23/1991 | EP0409244A2 Step device in miniature shovel car |
| 01/22/1991 | US4986671 Three-parameter optical fiber sensor and system |
| 01/22/1991 | US4986593 Work cabin having a front windowpane |
| 01/22/1991 | US4986075 Hydraulic circuit for backhoe |
| 01/22/1991 | US4986071 Fast response load sense control system |
| 01/22/1991 | US4986011 Cutting device with removable tools |
| 01/22/1991 | CA1279336C Cutter bit having hard tip with middle section defined by concave surface of revolution |
| 01/22/1991 | CA1279231C Load responsive system having synchronizing systems between positive and negative load compensation |
| 01/16/1991 | EP0408170A1 Vehicle control systems |
| 01/16/1991 | EP0408008A2 Seat device for very small size shovel car |
| 01/16/1991 | EP0407618A1 Hydraulic drive travelling system |
| 01/15/1991 | US4984427 Control circuit for hydraulic actuator |
| 01/15/1991 | CA1278978C Hydraulic system for an industrial machine |
| 01/10/1991 | WO1991000432A1 Hydraulic circuit |
| 01/10/1991 | WO1991000431A1 Hydraulic circuit for operating cylinder of working machine |
| 01/10/1991 | WO1991000397A1 Device for displaying operation pattern of hydraulic excavator |
| 01/10/1991 | WO1991000396A1 Device for operating traveling and working machines of hydraulic excavator |
| 01/10/1991 | DE3920011A1 Winning equipment in mine - is mounted on self-propelled tracked vehicle and has toothed milling roller and conveyor belt system |
| 01/09/1991 | EP0407231A1 Hydraulic pump control circuit for travelling construction machines |
| 01/08/1991 | US4983281 Metal detector scoop sifter |
| 01/02/1991 | EP0406070A1 Safety system for an engine in particular for an earth moving machine |
| 01/02/1991 | EP0405725A2 Method and apparatus for controlling motorgrader cross slope cut |
| 01/02/1991 | EP0405274A1 Tooth mounting for fixing a tooth to an excavator bucket |
| 01/02/1991 | EP0404956A1 Oil pressure feeder of work machine cylinder |
| 01/02/1991 | EP0404953A1 Controller of construction equipment |
| 01/02/1991 | EP0404946A1 Hydraulic circuit device of construction vehicle |
| 01/02/1991 | CA1278494C Load responsive control system adapted to use of negative load pressure in operation of system controls |
| 01/01/1991 | US4981047 Control unit for a construction machine |
| 01/01/1991 | US4980980 Tooth for a digging bucket of an excavator |
| 12/28/1990 | CA2015607A1 Method and apparatus for controlling motorgrader cross slope cut |
| 12/27/1990 | EP0404690A2 Pneumatic circuit for wheel mounted shovel |
| 12/27/1990 | EP0404271A1 Hose breakage safety system |
| 12/27/1990 | EP0202229B1 Precision seed drills |
| 12/27/1990 | CA1278360C Load sensing circuit of load compensated direction control valve |
| 12/27/1990 | CA1278241C Pedestal control console for vehicles |
| 12/26/1990 | CN2068110U Digging hock |
| 12/26/1990 | CN1010969B Controlling system for load-transducing hydraulic circuit |
| 12/19/1990 | EP0402474A1 Service valve circuit in a hydraulic excavator |
| 12/18/1990 | US4978273 Loader bucket control |
| 12/18/1990 | US4977928 Load sensing hydraulic system |
| 12/13/1990 | WO1990015196A1 Shovel, in particular trenching shovel |
| 12/13/1990 | DE3918600A1 Schaufel, insbesondere planierschaufel Blade, in particular Grading |