| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 09/18/1990 | US4957622 Apparatus for removing sediment from ponds |
| 09/18/1990 | US4957392 Method and apparatus for the active prevention of sedimentation in harbors and waterways |
| 09/11/1990 | US4955756 Pipeline padding system |
| 09/11/1990 | CA1273974A1 Corner guard system having a replaceable corner tooth |
| 09/07/1990 | WO1990010756A1 Impact bucket apparatus |
| 09/07/1990 | WO1990010115A1 An earthworking apparatus |
| 09/07/1990 | CA2045458A1 Impact bucket apparatus |
| 08/28/1990 | US4952179 Salt mushroom cutting apparatus |
| 08/23/1990 | WO1990009489A1 A caterpillar-driven excavating machine equipped with a separate working tool |
| 08/22/1990 | EP0382726A1 Process and device for dredging silt in ports, waterways and the like. |
| 08/22/1990 | CN2060789U Machine for removing silt, making ditch and ridging |
| 08/21/1990 | US4950102 Wheel compaction unit |
| 08/15/1990 | CN2060455U Amphibious mud and soil feeding and conveying apparatus |
| 08/14/1990 | US4948299 Padding machine |
| 08/09/1990 | WO1990007629A3 Device for sinking galleries or the like in underground mining or the like |
| 08/07/1990 | US4946227 Bucket wheel assembly |
| 08/07/1990 | US4945663 Apparatus and method for forming and compacting planting mounds |
| 07/28/1990 | WO1990008856A1 Trench excavating arm propulsion apparatus |
| 07/26/1990 | WO1990008857A1 Cutting apparatus |
| 07/25/1990 | EP0305658B1 Milling device for slits |
| 07/24/1990 | US4943186 Device for the displacement of sediment under water and process for the use of such a device |
| 07/24/1990 | US4943165 Sludge stabilizing method and apparatus |
| 07/24/1990 | US4942932 Auger drilling system |
| 07/18/1990 | EP0378485A1 Device for connecting cutting drums to an apparatus used for digging trenches in the soil |
| 07/18/1990 | CN1043970A High-efficient centrifugal break barrow |
| 07/17/1990 | US4941315 Wear resistant chain for trenchers |
| 07/13/1990 | CA2007708A1 Device for fixing a trenching drum on a trenching machine |
| 07/12/1990 | WO1990007629A2 Device for sinking galleries or the like in underground mining or the like |
| 07/11/1990 | CN2059169U Rolling wheel ditcher |
| 07/11/1990 | CN1008754B Device for displacement under water and process for use of such a device |
| 07/10/1990 | US4939854 Rotary trenching machine |
| 07/05/1990 | DE3916767A1 Vorrichtung zum senken von strecken od. dgl. in untertaegigen grubenbetrieben od. dgl. Apparatus for reducing stretch of od. Like. Untertaegigen in mine operated od. Like. |
| 07/04/1990 | EP0376535A1 Endless excavating chain and digging teeth for use therein |
| 07/03/1990 | US4938114 Mine clearing apparatus |
| 07/03/1990 | US4937957 Torsional limiting device for a vehicular ditching apparatus |
| 06/26/1990 | US4936707 Method of laying a pipeline |
| 06/19/1990 | US4934978 Rotation-elastic damped cutting device |
| 06/12/1990 | CA2005141A1 Digging tooth and teeth arrayed in combination with endless excavating chain |
| 06/06/1990 | CN2057929U Automatic siphon scouring canal |
| 06/06/1990 | CN2057928U Rotational flow silt-removing valve jug |
| 05/23/1990 | EP0369890A1 Attachment means for the power units of a milling device for digging soil trenches |
| 05/23/1990 | EP0369879A1 Manipulator for public works machines, and machine provided with such a manipulator serving to treat a road |
| 05/22/1990 | US4927317 Apparatus for temporarily covering a large land area |
| 05/22/1990 | US4927294 Method and equipment for laying an elongated element underground |
| 05/18/1990 | CA2003266A1 Cylinder block mounting device for screw auger trenching apparatus |
| 05/16/1990 | EP0368129A1 Suction dredger |
| 05/16/1990 | EP0157337B1 Soil loosening implement |
| 05/15/1990 | US4925358 Trailerable earth digging apparatus |
| 05/15/1990 | US4924947 Bentleg plow |
| 05/15/1990 | US4924609 Digging tooth and teeth arrayed in combination with endless excavating chain |
| 05/15/1990 | CA1268953A1 Apparatus for laying subterranean plastic tape and pipe |
| 05/08/1990 | US4924374 Method for automatic position control of a tool |
| 05/08/1990 | US4923329 Draining method and a machine for implementing same |
| 04/24/1990 | US4919585 Vehicular mounted excavator |
| 04/19/1990 | WO1990004068A1 Cutter |
| 04/19/1990 | DE3933168A1 Slit wall cutter with counter-rotating cutter wheels - which have rolling tools on their peripheries, overhung in bearings |
| 04/18/1990 | EP0363899A1 Rotary bucket assembly |
| 04/18/1990 | CN1041416A Extruding hole method for underground econstruction and machinery thereof |
| 04/17/1990 | US4918608 Method for automatic depth control for earth moving and grading |
| 04/10/1990 | US4914840 Trench digging, cable laying and trench filling apparatus |
| 04/05/1990 | WO1990003473A1 Direct-acting impact ripper |
| 04/05/1990 | WO1990003472A1 Slewing and tilting device |
| 04/05/1990 | WO1990003230A1 Solid waste retriever |
| 04/04/1990 | CN2055509U Deep loosener |
| 04/03/1990 | US4914593 Method for automatic depth control for earth moving and grading |
| 04/03/1990 | US4912862 Backfill machine |
| 03/28/1990 | EP0359785A1 Pulsating hydraulic drive system |
| 03/21/1990 | CN2054807U Scraper type scavenger |
| 03/20/1990 | US4909333 Vibratory plow |
| 03/20/1990 | US4909332 Vibratory plow |
| 03/20/1990 | US4908967 For digging ditches |
| 03/20/1990 | US4908966 Benthic dredge construction |
| 03/15/1990 | DE3830036A1 Device for excavated material |
| 03/14/1990 | EP0357652A1 Pneumatic extraction head. |
| 03/07/1990 | CN2054049U Waterpower device for scooping out pond |
| 03/06/1990 | US4906049 Ripper using a hydraulic hammer and a method for making the improvement |
| 02/28/1990 | EP0355278A2 Process for ploughing, in particular cables and laying plough for carrying out the process |
| 02/27/1990 | US4904116 Apparatus for making tunnels in the ground and for laying supply lines |
| 02/27/1990 | US4903780 Mobile, self-propelled crushing machine |
| 02/20/1990 | CA1266043A1 Auger drilling system |
| 02/15/1990 | DE3821026A1 Method and device for laying bodies in the form of strands, such as cables, pipelines and the like |
| 02/14/1990 | EP0354675A1 Apparatus for connecting a towed implement to a tractor |
| 02/13/1990 | US4900093 Impact ripper and control |
| 02/06/1990 | US4897911 Method of placing plastic tubes into existing openings |
| 02/05/1990 | EP0346366A4 Chain digger attachment. |
| 02/01/1990 | DE3825338A1 Cutting chain for a trench cutter or the like |
| 01/31/1990 | EP0353152A1 Device for withdrawing dug material for making deep trenches |
| 01/30/1990 | US4896998 Submarine cable plough |
| 01/30/1990 | US4896443 Ditch forming apparatus |
| 01/30/1990 | US4896442 Trencher apparatus |
| 01/23/1990 | US4895211 Land clearing root plow and soil aerator |
| 01/17/1990 | CN1006478B Swing anti-impact dredger with multiple grab buckets |
| 01/16/1990 | US4893464 Offset attachment sidebar chain |
| 01/16/1990 | CA1264447A1 Pipeline, a method of laying the pipeline and a device for effecting said method |
| 01/09/1990 | US4892443 Cable plow |
| 01/03/1990 | EP0349132A1 Method for automatic depth control for earth moving and grading |
| 01/03/1990 | EP0348510A1 Self-propelled stone crusher |
| 01/03/1990 | CN1038478A Amphibious blower for feeding mud or earth |
| 01/02/1990 | US4890958 Railroad cable/pipe plow and method therefor |
| 01/02/1990 | US4890957 Cable laying apparatus |