| Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930) |
|---|
| 11/21/1989 | US4881332 Shovel lifting aid |
| 11/21/1989 | CA1263069A1 Selective control device for plural kinds of oil- hydraulic actuators |
| 11/16/1989 | WO1989010893A1 Quadflex bucket apparatus and method |
| 11/16/1989 | WO1989010810A1 Process for manufacturing bucket wheel bodies and bucket wheel bodies so obtained |
| 11/15/1989 | EP0341698A1 Sideshift mounted backhoe locking mechanism |
| 11/14/1989 | US4880123 Method for converting a digging boom to a lifting boom |
| 11/09/1989 | DE3813257A1 Construction vehicle |
| 11/08/1989 | CN1005740B Moving-type self-pushed pulverizer |
| 11/07/1989 | US4878713 Pavement planing machine |
| 11/07/1989 | US4878711 Method and apparatus for mining of ocean floors |
| 11/02/1989 | EP0339051A1 Rotary high-lift |
| 11/01/1989 | CN1005639B Trench excavator |
| 10/26/1989 | DE3823480C1 Collecting plate for surface-cutting machines |
| 10/25/1989 | EP0338878A1 Cleaning method for pipings and for containers in water with the help of a self-driven floatable tool |
| 10/19/1989 | DE3810932A1 Mouthpiece of a suction dredger |
| 10/12/1989 | DE3810459A1 Rope-guided trench-wall grab |
| 10/11/1989 | EP0336676A1 Gear lock quick disconnect mechanism for articulated machine |
| 10/10/1989 | US4872264 Heavy duty plate shear |
| 10/10/1989 | CA1262242A1 Device for mounting working implements on tractor |
| 10/04/1989 | EP0335800A1 Vehicle for continuously gathering and loading materials |
| 10/03/1989 | US4871292 System for attaching and locking material handling tools to a dipper boom |
| 10/03/1989 | US4871281 Trenching tool for installing perforated pipe |
| 10/03/1989 | US4871213 Excavating apparatus with adjustable breaker bar |
| 10/03/1989 | US4871025 Levelling machine |
| 09/26/1989 | US4869619 Method for excavating hole and apparatus therefor |
| 09/26/1989 | US4869326 Box scraper with plural blades |
| 09/26/1989 | US4869002 Vehicle attachment for accommodating tool |
| 09/26/1989 | CA1261944A1 Control apparatus and proportional solenoid valve control circuit for boom-equipped working implement |
| 09/26/1989 | CA1261790A1 Dredger |
| 09/26/1989 | CA1261727A1 Cockpit equipped with a lateral stick operable by a single hand and seat for said cockpit |
| 09/26/1989 | CA1261374A1 Rub link assembly for dragline bucket |
| 09/26/1989 | CA1261232A1 Series self-leveling valve |
| 09/26/1989 | CA1260965A1 Bench mining method and apparatus |
| 09/26/1989 | CA1260023A1 Method and apparatus for fragmenting a substance by the discharge of pulsed electrical energy |
| 09/26/1989 | CA1260022A1 Mining apparatus and jet pump therefor |
| 09/26/1989 | CA1259958A1 Coupling apparatus |
| 09/21/1989 | WO1989008748A1 An underwater dredge |
| 09/20/1989 | EP0333577A1 Digging-tool guiding system for use in erecting a moulded wall in the soil |
| 09/20/1989 | EP0333066A1 Earth-moving machine, in particular a shovel loader |
| 09/20/1989 | EP0332947A1 Vehicle, in particular a shovel loader |
| 09/20/1989 | CN2044619U Low-resistance and high-efficient anti-wear bucket |
| 09/20/1989 | CN1035631A Heavy duty plate shear |
| 09/19/1989 | CA1259635A1 Diluvial diving dredge |
| 09/12/1989 | US4866641 Apparatus and method for controlling a hydraulic excavator |
| 09/12/1989 | US4864748 Materials transport and distribution apparatus |
| 09/12/1989 | US4864747 Support assembly for a dragline bucket |
| 09/12/1989 | US4864746 Apparatus for compensating stop position of bucket |
| 09/07/1989 | DE3805868A1 Rope-guided trench-wall grab |
| 09/06/1989 | EP0331076A1 Hydraulic circuit for cylinder |
| 09/05/1989 | USRE33042 Excavating tooth assembly |
| 09/05/1989 | US4863338 Material handling bucket with extensible and pivotally mounted apron assembly |
| 09/05/1989 | US4863337 Control system for working machine having boom |
| 09/05/1989 | US4863294 Large roller bearing in the form of a wire bearing |
| 08/31/1989 | DE3805344A1 Machine for civil engineering work, in particular for constructing trenches |
| 08/30/1989 | EP0330383A2 Articulated arm control |
| 08/30/1989 | EP0330382A2 Manipulator arm position sensing |
| 08/30/1989 | EP0244401B1 Control circuit for positioning an earthmoving blade |
| 08/29/1989 | US4861199 Slit trencher |
| 08/29/1989 | US4860834 Converting assembly |
| 08/29/1989 | CA1258828A1 Mounting for a linkage arrangement |
| 08/29/1989 | CA1258827A1 Excavator/loader |
| 08/24/1989 | WO1989007691A1 Improvements relating to dredgers |
| 08/23/1989 | EP0329114A1 Funeral device |
| 08/23/1989 | CN1034969A Clamping attachment for backhoe |
| 08/22/1989 | US4859138 Boom for a vehicle including folding linkage between boom parts |
| 08/22/1989 | US4859130 Material handling attachment for a tractor having a multiple-point hitch assembly |
| 08/22/1989 | US4858486 Rotary actuator with backlash elimination |
| 08/22/1989 | US4858347 Continuous excavating apparatus and methods |
| 08/22/1989 | US4858346 Bucket cover for excavating implements |
| 08/16/1989 | EP0328198A1 Improvements relating to dredgers |
| 08/16/1989 | EP0328197A1 Scraper bucket material handling unit, especially for snow |
| 08/16/1989 | EP0327647A1 Bulldozer blade control mechanism |
| 08/16/1989 | CN2042859U Excavating bucket |
| 08/10/1989 | WO1989007177A1 Automatic implement position control system |
| 08/09/1989 | EP0326679A1 Resonantly driven earth mover |
| 08/08/1989 | US4854814 Quick coupler assembly |
| 08/08/1989 | US4854813 Coupling apparatus |
| 08/08/1989 | US4854812 Quick coupler assembly |
| 08/08/1989 | US4854811 Bucket-blade attachment for tractors |
| 08/08/1989 | US4854058 Dredging apparatus having a diver-operated hand-held dredge head for quasi-closed loop system |
| 08/03/1989 | DE3802602A1 Method and wheeled loader for removing excavated material |
| 08/01/1989 | US4852946 Surface working accessory and method |
| 08/01/1989 | US4852660 Grader blade having a pressurized float position |
| 08/01/1989 | US4852659 Motor grader with high-lift and lock arrangement |
| 08/01/1989 | US4852277 Backhoe scraper apparatus |
| 08/01/1989 | CA1258047A1 Backhoe mounting |
| 07/27/1989 | WO1989006723A1 Bucket posture retainer for cargo handling vehicles |
| 07/27/1989 | WO1989006589A1 Surface levelling device and method |
| 07/26/1989 | EP0325358A1 Clamping attachment for backhoe |
| 07/26/1989 | EP0325091A1 A multipurpose amphibian vehicle |
| 07/25/1989 | US4850790 Hydraulically actuated coupler for industrial, agricultural, or earth-moving vehicle |
| 07/25/1989 | US4850123 Ballast removal apparatus |
| 07/25/1989 | CA1257888A1 Dragline bucket |
| 07/25/1989 | CA1257853A1 Trolley mounted, hand-propelled home/professional digger, or 'mini-digger' |
| 07/19/1989 | EP0324703A1 Device for boring into the soil |
| 07/19/1989 | EP0324108A1 Pivotal attachment structure |
| 07/18/1989 | US4848483 Tool attachment means for tractors |
| 07/18/1989 | US4848012 Multi-purpose earthworking machine |
| 07/18/1989 | US4848011 Loader bucket |
| 07/18/1989 | US4848010 Backhoe machine |