| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 03/22/1994 | US5295769 Stirring apparatus for improving ground |
| 03/17/1994 | WO1994005864A1 Excavating and pipe laying machines |
| 03/16/1994 | EP0587029A1 Trench backfill device |
| 03/15/1994 | US5293944 In a digging apparatus |
| 03/15/1994 | CA1327788C Method for excavating hole and apparatus therefor |
| 03/09/1994 | CA2105695A1 Device for filling ditches |
| 03/03/1994 | WO1994004791A1 Apparatus for cutting and excavating solids |
| 03/03/1994 | CA2142106A1 Apparatus for cutting and excavating solids |
| 03/02/1994 | EP0585188A1 Device for automatically laying underground conduits |
| 03/02/1994 | CN1083167A 拱形结构 Arch |
| 03/02/1994 | CN1083166A 拱形结构 Arch |
| 02/22/1994 | US5288172 Water jet system for trenching of pipelines |
| 02/16/1994 | CN2156217Y Automatic digging machine for river bed |
| 02/16/1994 | CN2156216Y Automatic ditch excavator |
| 02/10/1994 | DE4243696C1 Vehicle-mounted adjustable trenching tool - has cutter head on slewing lengthwise ram-operated links one forming additional slewing ram |
| 02/09/1994 | CN1081733A Dry-type sludge-cleaning method and apparatus for river |
| 02/08/1994 | US5284403 Control method and control equipment for drilling apparatus |
| 02/08/1994 | US5284097 Ballast distribution, regulation and reclaiming railroad maintenance device |
| 02/03/1994 | DE4225217A1 Recovery device for subterraneous curtain wall grab in deep foundations - has grab cradle with cross saddle with captive tie rods, connected to traction unit outside foundations |
| 02/02/1994 | EP0581357A1 Underwater bed cutting device |
| 02/02/1994 | EP0580573A1 Improvements in or relating to underwater excavation apparatus. |
| 01/25/1994 | US5281054 Vibratory plow assembly |
| 01/12/1994 | CN2152831Y Eddy sewage draining device |
| 01/05/1994 | EP0577430A1 Method and apparatus for digging trenches |
| 01/05/1994 | CN1080347A Rotary bucket type dredger |
| 12/28/1993 | US5273375 Trench paving device |
| 12/21/1993 | US5271168 Pipeline padding machine |
| 12/09/1993 | WO1993024708A1 Apparatus for drilling and maintenance of holes in a golf course |
| 12/02/1993 | DE4235355C1 Pipe or cable laying system - has removed trench material used for refilling trench after dosing with cement or lime |
| 12/02/1993 | DE4231553C1 Mast support for crane or drilling rig car - has support swivel arm movable over car cabin |
| 12/02/1993 | DE4208972C1 Messerschild zum Vortrieb von offenen Gräben im Boden Blade apparatus for propulsion of open trenches in the ground |
| 12/01/1993 | EP0546154A4 Apparatus and methods for cutting soil and in situ construction of subsurface containment barriers |
| 12/01/1993 | CN1022941C Corner tooth used on machine |
| 11/23/1993 | US5263798 Process for guiding the excavation tool used for the construction of a wall cast in the ground, and excavation tool for implementing this process |
| 11/18/1993 | EP0569478A1 High voltage ripping apparatus. |
| 11/16/1993 | US5261171 Pipeline padding machine attachment for a vehicle |
| 11/11/1993 | DE4214410A1 Widening of existing trench - involves machine with several cutting heads on swing arms |
| 11/09/1993 | US5259699 Pipeline padding system |
| 11/02/1993 | US5257471 Excavator for forming underground continuous wall |
| 10/28/1993 | DE4213523A1 Mobile milling loader to dig ditches - has adjustable fixed crusher plate to form crusher gap with milling head |
| 10/27/1993 | EP0567218A1 Telescopic arm assembly with two interconnected hydraulic activators for grab bucket excavator |
| 10/26/1993 | US5255960 Tunnel drilling apparatus with drill waste removal |
| 10/26/1993 | US5255454 Apparatus for preparing trenches |
| 10/24/1993 | CA2091623A1 Deep excavator |
| 10/21/1993 | DE4212714A1 Dry and wet recovery of unconsolidated material - using floating and dry dredgers, and central conveyor, which is moved by face width |
| 10/06/1993 | EP0563473A1 Excavator and method of using excavator |
| 10/06/1993 | EP0563472A1 Excavator and methods of use thereof |
| 10/06/1993 | CN1076983A High voltage ripping apparatus |
| 10/06/1993 | CN1076982A Excavator for constructing underground continuous wall and underground continuous wall construction method |
| 10/06/1993 | CN1076981A Excavator for constructing underground continuous wall and construction method using the excavator |
| 10/05/1993 | US5249379 Mounting structure for the linear actuators of a trenching apparatus |
| 10/05/1993 | US5249378 Submersible; for use in combination with an excavator |
| 09/30/1993 | WO1993019253A1 Cutting shield for digging open trenches in the ground |
| 09/28/1993 | US5247743 Method and apparatus for digging trenches |
| 09/22/1993 | CN1076502A High speed road excavator |
| 09/21/1993 | US5245769 Trencher for mounting on a tractor |
| 09/21/1993 | US5245768 Backfill separator for ditching machine |
| 09/14/1993 | US5244315 Excavator for constructing underground continuous wall and underground continuous wall construction method |
| 09/07/1993 | US5242247 Apparatus for laying pipe |
| 09/02/1993 | WO1993016945A1 Novel conveyor belt bridge for open-cast mining |
| 09/02/1993 | WO1993016911A1 Apparatus for accurately laying conduit within a trench and method of using the same |
| 09/02/1993 | CA2108881A1 Mobile connecting belt bridge for open cast mining |
| 08/26/1993 | DE4205557A1 Mobile verbindungsbandbruecke fuer den tagebau Mobile verbindungsbandbruecke for the tagebau |
| 08/26/1993 | CA2090372A1 Apparatus for accurately laying conduit within a trench and method of using the same |
| 08/24/1993 | US5238225 Method and apparatus for pulling underground electrical cable |
| 08/24/1993 | US5237761 Rotary ditcher having ripper blades |
| 08/18/1993 | EP0555459A1 Suction dredger |
| 08/17/1993 | US5236284 Varying the position of center of gravity of bit unit |
| 08/10/1993 | US5235511 Method for automatic depth control for earth moving and grading |
| 08/04/1993 | CN2139598Y Small size hydraulic dredge with horizontal rotary knife |
| 08/03/1993 | US5232502 Pipe handling apparatus |
| 07/20/1993 | US5228221 Boom assembly for a trencher machine |
| 07/20/1993 | US5228220 Bucket chain excavator |
| 07/13/1993 | US5226248 Trencher |
| 07/08/1993 | WO1993013344A1 Elongated housing of large cross-section and its fabrication method |
| 07/08/1993 | CA2110902A1 Elongated housing of large cross-section and its fabrication method |
| 07/07/1993 | CN2137679Y Pull-type bucket for removing sludge |
| 07/07/1993 | CN1074003A Multifunction back-filling machine for pipeline construction |
| 07/06/1993 | US5224797 Apparatus for laying porous irrigation pipe, cable, conduit, and the like |
| 06/30/1993 | EP0548707A1 Method and device to increase the water depth of a watercourse |
| 06/24/1993 | WO1993012366A1 A method and apparatus to steer a tube line that has to be driven into the soil |
| 06/22/1993 | USRE34289 Padding machines |
| 06/17/1993 | DE4213332C1 Drive for underground prodn. of conduits - comprises outer appts. area in which a striker and floor compressor are integrated |
| 06/16/1993 | EP0546154A1 Apparatus and methods for cutting soil and in situ construction of subsurface containment barriers. |
| 06/16/1993 | CN2136275Y Shallow water dredger |
| 06/15/1993 | US5219265 Grapple assembly |
| 06/09/1993 | EP0545803A1 Process and apparatus for sucking and stocking excavated earth or the like |
| 06/09/1993 | CN2135599Y Vibration rolling silt cleaning machine |
| 06/08/1993 | CA1318932C Benthic dredge construction |
| 06/03/1993 | WO1993011309A1 High voltage ripping apparatus |
| 06/03/1993 | CA2101270A1 High voltage ripping apparatus |
| 06/01/1993 | US5214868 Apparatus for laying an underground member |
| 06/01/1993 | US5214867 Forest fire extinguishing apparatus |
| 06/01/1993 | US5214866 Continual digging, transport and loading accessory for earth or material moving equipment |
| 06/01/1993 | CA1318510C Flexible pipe or cable laying apparatus |
| 05/26/1993 | EP0543467A1 Method for burying an elongated object |
| 05/25/1993 | US5212896 Control system for a walk behind trencher machine |
| 05/25/1993 | US5212895 Retractable excavator cutting tooth apparatus |
| 05/25/1993 | US5212892 Cutter head assembly for excavating machine |
| 05/25/1993 | US5212891 Soft excavator |