| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 02/02/2000 | EP0975841A1 Steerable underwater plow |
| 01/26/2000 | EP0974702A2 Automotive soil treating machine |
| 01/26/2000 | EP0973977A2 An ejector mechanism for a silt removal excavating wheel |
| 01/26/2000 | EP0973976A1 Apparatus and method for removing silt from under a body of water |
| 01/25/2000 | US6017400 Submurging a vehicle such that in comes to rest on the underwater floor, directing the vehicle to travel the underwater floor, selectively suctioning sediment particles from the floor while leaving sand and gravel in place |
| 01/25/2000 | US6016616 Sensor positioning apparatus for trench excavator |
| 01/19/2000 | EP0972115A2 Overload protector mechanism for shield mechanism of excavating wheel |
| 01/19/2000 | EP0842330B1 Method and device for burying a conduit under water |
| 01/18/2000 | US6014825 Bucket wheel excavator |
| 01/11/2000 | US6012241 Chain trencher having head shaft wear plates |
| 01/05/2000 | EP0969152A2 Apparatus for constructing monolithic trench walls or similar |
| 01/04/2000 | US6009958 Soil sampling apparatus and a geological observation method using the same |
| 12/23/1999 | WO1999066244A2 Apparatus and methods for placing and engaging elongate workpieces |
| 12/22/1999 | EP0965697A1 Method and apparatus for filling trenches |
| 12/22/1999 | EP0865543A4 Pipeline padding apparatus |
| 12/22/1999 | CN2355002Y Rotary pressing head for extrusion of small diameter underground sewage pipe |
| 12/22/1999 | CN1239171A Spiral reamer type dredger |
| 12/21/1999 | US6003953 Cutter head with cutting members that rotate relative to each other |
| 12/21/1999 | US6003952 Underwater mining machine |
| 12/19/1999 | CA2275067A1 Trench-filling method and device |
| 12/16/1999 | DE19926448A1 Sediment dredger and deposition vessel for waterways |
| 12/14/1999 | US6000641 Method of crushing and mixing soil and machine therefor |
| 12/09/1999 | DE19822325A1 Verfahren zum Aufbereiten von Bodenaushub Method for processing excavated soil |
| 12/07/1999 | US5996705 Power trencher |
| 12/01/1999 | EP0960660A1 Process for filling a disposal site for silt supplied with a high water content and device for applying drainage wicks |
| 11/30/1999 | US5993115 Pipeline trenching and laying device |
| 11/24/1999 | EP0959184A2 Process for preparing excavated material |
| 11/23/1999 | US5988948 Underwater plough and method for varying ploughing depth |
| 11/18/1999 | DE19822001A1 Cable laying device e.g. for laying cables in sand, gravel or loose earth |
| 11/10/1999 | CN2348013Y Scraping ditching machine and scraper thereof |
| 11/04/1999 | WO1999055972A1 Steerable underwater plow with movable body member |
| 11/02/1999 | US5975804 Tile plow |
| 10/28/1999 | WO1999054556A1 Submarine trenching vehicle and method |
| 10/28/1999 | WO1999054555A1 Excavation assembly, apparatus and method of operating the same |
| 10/26/1999 | US5970635 Jet agitation dredging system |
| 10/26/1999 | US5970634 Semi-submersible machine for remediation of constructed drainage areas |
| 10/20/1999 | CN2344441Y Cutter-suction desilting machine |
| 10/19/1999 | US5966847 Pneumatic excavator |
| 10/14/1999 | WO1999051822A1 Method and apparatus for burying a cable in a railway bed |
| 10/13/1999 | CN2343209Y Remote-controlled submersible dredging vehicle |
| 10/12/1999 | US5964305 Trench wall cutter |
| 10/12/1999 | US5964049 Trencher |
| 10/07/1999 | WO1999050508A1 Dredging apparatus |
| 10/07/1999 | CA2326891A1 Dredging apparatus |
| 10/05/1999 | US5961437 Multi-layer waste containment barrier |
| 10/05/1999 | US5960570 Apparatus and method for removing silt from under a body of water |
| 09/29/1999 | EP0797708B1 Apparatus and associated method for padding a trench |
| 09/29/1999 | CN2340814Y Pebble collecting ship |
| 09/28/1999 | US5957624 Apparatus and method for in Situ installation of underground containment barriers under contaminated lands |
| 09/23/1999 | WO1999047758A1 Machine for performing work on land and/or in water |
| 09/23/1999 | DE19811806A1 Mini digger with soil cultivator attached to multi-joint boom for working at sloping grounds |
| 09/23/1999 | CA2323622A1 Machine for performing work on land and/or in water |
| 09/21/1999 | US5953838 Control for hydraulically operated construction machine having multiple tandem articulated members |
| 08/31/1999 | US5944447 Underwater pipeline entrenching apparatus and method of using the same |
| 08/31/1999 | US5943798 Method of and apparatus for trenching |
| 08/31/1999 | US5943797 Excavating machine with conveyor assembly |
| 08/19/1999 | WO1999041463A1 Method for working through ground and rock layers with dredgers or excavators and apparatus operating according to this method |
| 08/17/1999 | US5938373 Apparatus for padding a trench including crusher for pulverizing excavated material into grades of material |
| 08/12/1999 | WO1999040263A1 Machine for displacing grindstones |
| 08/10/1999 | US5934833 Vibratory pipe and cable laying plow |
| 08/10/1999 | US5934831 Method and device for producing a cable |
| 08/04/1999 | EP0933479A1 Machine for digging under pipes and caterpillar traction device |
| 08/04/1999 | EP0933014A1 Cleaning device with incorporated shredder |
| 08/03/1999 | US5930923 Method for operation to excavate underdrain in the field ground and a device for operation to excavate underdrain |
| 07/29/1999 | WO1999023314B1 Steerable underwater plow |
| 07/28/1999 | EP0754264B1 Method and vessel for treating an underwater bed |
| 07/28/1999 | CN2330710Y Hydraulic-transmission dredger-desilter |
| 07/28/1999 | CN1224478A Method and device for levelling and filling ditches |
| 07/22/1999 | WO1998030758A8 Machine for uncovering a pipeline and operating element |
| 07/21/1999 | CN2329710Y Rotary wheel type submersible machine for cleaning sludge |
| 07/20/1999 | US5924222 Trench wall cutter |
| 07/15/1999 | WO1999035346A1 Method and machine for laying elongated structures, such as optical fibres |
| 07/15/1999 | DE19757841A1 Trencher or narrow ditch ground placement |
| 07/01/1999 | WO1999032733A1 Method for laying a cable in a trench |
| 06/29/1999 | US5915885 Method for vertical displacement of masses underneath the earth's surface |
| 06/29/1999 | US5915878 Silt fence machine |
| 06/22/1999 | US5913639 Mechanized cable puller |
| 06/22/1999 | US5913638 For attachment to a motor driven vehicle |
| 06/16/1999 | EP0922811A2 Device for the treatment of longitudinal excavations in soil |
| 06/16/1999 | CN2324185Y Tractor-driven hydraulic earthmoving machine |
| 06/15/1999 | US5911544 Soil compactor |
| 06/05/1999 | CA2255387A1 Excavation apparatus |
| 06/02/1999 | EP0808391B1 Device for creating a local water flow |
| 06/01/1999 | US5907915 Ejector mechanism for a silt removal excavating wheel |
| 05/27/1999 | WO1999025932A1 Method for extracting and grading sand |
| 05/27/1999 | DE19749246A1 Bucket wheel excavator running on endless track |
| 05/26/1999 | CN2320529Y Small silt-cleaning vessel |
| 05/26/1999 | CN1217407A Bucket-wheel excavator |
| 05/19/1999 | EP0916771A2 Milling tooth for the working of the soil |
| 05/19/1999 | CN1216799A Mining mechanism for mine |
| 05/19/1999 | CN1216792A Ballast grading machine and method for ballating track |
| 05/18/1999 | US5904210 Apparatus and method for detecting a location and an orientation of an underground boring tool |
| 05/18/1999 | US5903989 Overload protector mechanism for shield mechanism of excavating wheel |
| 05/14/1999 | WO1999023314A1 Steerable underwater plow |
| 05/12/1999 | EP0915205A1 Soil improving machine with excavating means |
| 05/12/1999 | EP0915203A1 Ballast leveling machine and method for placing the ballast of a railway track |
| 05/11/1999 | US5901790 Earth mover and attached vibratory screen |
| 05/11/1999 | US5901475 Process of dewatering dredge spoil |
| 05/07/1999 | CA2253653A1 Bucket wheel excavator |
| 05/06/1999 | EP0912837A1 An auxiliary hydraulic power unit |