| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 08/26/1997 | US5659983 Device for filling in a trench dug in the sea bed in order to cover a pipe laid down in the trench |
| 08/20/1997 | EP0790356A1 Controller for excavators |
| 08/20/1997 | EP0455672B1 Trench excavating arm propulsion apparatus |
| 08/14/1997 | DE19603824A1 Excavator for graves |
| 08/13/1997 | EP0788844A1 Method for vertical displacement of masses, in particular soil masses and device therefor |
| 08/13/1997 | CN2259708Y Groover for covered electric line |
| 08/06/1997 | CN1035564C Construction method for arch structure |
| 08/06/1997 | CN1035563C Arch structure and its construction method |
| 07/30/1997 | EP0725757A4 Excavating equipment |
| 07/22/1997 | CA2116483C Water-resistant gypsum compositions and emulsion for making same |
| 07/17/1997 | WO1997025519A1 Trenchless underground boring system with boring tool location |
| 07/17/1997 | WO1997025489A1 Construction |
| 07/17/1997 | WO1997025486A1 Method of disintegrating and mixing soil and apparatus therefor |
| 07/17/1997 | CA2241808A1 Trenchless underground boring system with boring tool location |
| 07/16/1997 | EP0694100B1 Method and device for continuously laying and burying a flexible submarine cable |
| 06/25/1997 | CN1152655A Arch structure constructing method |
| 06/25/1997 | CN1152654A Arch structure and construction method |
| 06/19/1997 | WO1997021877A1 Method and device for laying underground continuous walls |
| 06/18/1997 | CN2256437Y Hole making device for impact cutting and excavating hole filling pile |
| 06/18/1997 | CN1152063A Construction method of arched structure |
| 06/17/1997 | US5639185 Underwater trenching system |
| 05/27/1997 | US5632574 Backfilling device and apparatus therefor |
| 05/20/1997 | US5631160 Method for in situ soil remediation |
| 05/13/1997 | US5628130 Tool for excavating beneath buried utility lines |
| 05/09/1997 | WO1997016606A1 Methods and apparatus for excavating a solid material |
| 05/09/1997 | WO1997016605A2 Process and apparatus for excavation using an earth cutter, and construction filling in the excavation |
| 05/06/1997 | US5626442 Pipe rehabilitation system and methods |
| 05/06/1997 | US5626399 Apparatus for cutting and excavating solids |
| 05/02/1997 | EP0580573B1 Improvements in or relating to underwater excavation apparatus |
| 05/01/1997 | WO1997015734A1 Pipeline padding apparatus |
| 05/01/1997 | CA2238477A1 Pipeline padding apparatus |
| 04/24/1997 | DE19536778C1 Groundwater seal forming machine for continuous seals against metal contaminants |
| 04/23/1997 | EP0569478B1 High voltage ripping apparatus |
| 04/16/1997 | CN2252205Y High-efficient dredging vehicle |
| 04/10/1997 | DE19640177A1 Excavating shovel for earthworks |
| 04/09/1997 | EP0767277A1 Trench profiling device and profiling cutter thereby applied |
| 04/03/1997 | DE19542689C1 Cable laying machine for water ditches |
| 04/01/1997 | USH1642 Wear and impact tolerant plow blade |
| 04/01/1997 | US5615499 For attachment to a lower portion of an earth working bucket |
| 03/26/1997 | CN2250377Y Hydraulic mud cleaning ship |
| 03/18/1997 | CA2048041C Underwater surface-layer removal device having a flexible drapable skirt |
| 03/12/1997 | EP0584298B1 Elongated housing of large cross-section and its fabrication method |
| 03/06/1997 | WO1997008395A1 Controller for excavators |
| 03/06/1997 | WO1997008394A1 Vertical trencher |
| 03/04/1997 | US5607289 Underwater excavation apparatus |
| 02/19/1997 | CN2247683Y Muddiness prevention curtain for dredging |
| 02/11/1997 | US5601383 Excavation method and apparatus for accessing underground pipes of pipelines for gas, oil, and the like for maintenance and/or restoration |
| 02/06/1997 | WO1997004183A1 Apparatus and associated method for padding a trench |
| 02/06/1997 | WO1997004182A1 Method of expanding a bore hole in ground containing hard material and a device for implementing the method |
| 02/06/1997 | WO1997004181A1 Method and device for burying a conduit under water |
| 01/28/1997 | US5597045 Process and tool for laying underground collector mains for liquids and gases |
| 01/28/1997 | US5596824 For tamping of material in a trench opening |
| 01/28/1997 | US5596822 Cable laying apparatus |
| 01/22/1997 | EP0754264A1 Method and vessel for treating an underwater bed |
| 01/22/1997 | EP0690943B1 Process and device for precisely maintaining the vertical excavation direction of a subterranean curtain |
| 01/22/1997 | EP0546154B1 Apparatus and methods for cutting soil and in situ construction of subsurface containment barriers |
| 01/21/1997 | US5595134 Towing system for dredges and method for using same |
| 01/14/1997 | US5592761 For dislodging of/collecting soil during trench excavations |
| 01/08/1997 | CN1139723A Floating push-press working auxiliary controller for hydraulic excavator common loading device |
| 01/07/1997 | US5590731 Hydraulic control system providing proportional movement to an attachment of a power machine |
| 01/03/1997 | WO1997000389A1 Excavator data acquisition and control system and process |
| 01/03/1997 | CA2222448A1 Excavator data acquisition and control system and process |
| 12/31/1996 | US5588230 Apparatus for excavating soil using a plurality of independenity pivotable brushes |
| 12/24/1996 | US5586399 For excavating rock and soil to form a trench |
| 12/18/1996 | CN1138250A Device for assembly active and passive network nodal points package of communication equipment |
| 12/11/1996 | CN2242269Y Three-leaves full protection of leakage bucket |
| 12/05/1996 | WO1996038636A1 A block for the mortarless construction of a wall |
| 11/19/1996 | US5575538 Rock saw with centerline conveyor assembly and method of digging a narrow trench |
| 11/13/1996 | CN1135555A Digger with moveable sharft sleeve to prevent rotating sharft from tripping |
| 11/12/1996 | US5574642 Track trencher information system and process |
| 11/12/1996 | US5573347 Drain preparation apparatus and method of using same |
| 11/06/1996 | EP0741209A2 Hydraulic control system providing proportional movement to attachment of construction machines |
| 10/17/1996 | DE19512714A1 Embankment profiling attachment for mounting on vehicle |
| 10/16/1996 | EP0737783A2 A casing for use in excavation of a borehole |
| 10/16/1996 | CN2237660Y Pull-type machine for cleaning watercourse |
| 10/15/1996 | US5564205 Excavating machine with stowable discharge conveyor |
| 10/08/1996 | US5561923 Excavating apparatus |
| 10/08/1996 | US5561922 Extrusion dredging apparatus |
| 10/02/1996 | EP0735199A1 Slotting machine |
| 10/02/1996 | EP0734604A1 Cable duct element |
| 10/02/1996 | DE19512038A1 Floating grab dredger with catamaran floats |
| 09/24/1996 | US5559725 Automatic depth control for trencher |
| 09/24/1996 | US5558465 Method and device for laying an underground telecommunications cable |
| 09/18/1996 | EP0731863A1 Process and device used to renovate railroad track installations |
| 09/18/1996 | CN2235460Y Compound type dredging ship containing reamer bit and chuck bucket |
| 09/10/1996 | US5553407 Excavator data acquisition and control system and method of use |
| 09/04/1996 | EP0730064A1 Trenching apparatus for digging deep trenches |
| 09/04/1996 | CN1130148A Hose reeling device |
| 08/29/1996 | DE19506991A1 Homogenisation, grading and discharge/extraction of water sludges |
| 08/28/1996 | EP0728873A1 Sheltering device for active and passive connection components of telecommunication equipment |
| 08/23/1996 | CA2169899A1 Device for housing the active and passive junction assemblies of telecommunications installations |
| 08/15/1996 | WO1996024727A1 Device for creating a local water flow |
| 08/15/1996 | CA2212282A1 Device for creating a local water flow |
| 08/14/1996 | EP0725865A1 Drilling apparatus |
| 08/14/1996 | EP0725757A1 Excavating equipment |
| 08/06/1996 | US5542782 Method and apparatus for in situ installation of underground containment barriers under contaminated lands |
| 08/06/1996 | US5542476 Apparatus for drilling and maintenance of holes in a golf course |
| 08/06/1996 | CA2104723C High pressure soil disintegrating and excavation system using suction to remove water and particles |
| 07/31/1996 | CN1127821A Excavating apparatus |
| 07/30/1996 | US5540005 Contaminated marine sediments dredging apparatus |