| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 05/30/1989 | US4834461 Control system for a multiple shank impact ripper |
| 05/30/1989 | US4834197 Trench cutter |
| 05/30/1989 | US4833797 Trencher attachment |
| 05/24/1989 | DE3739041A1 Kabelpflug Cable Plow |
| 05/24/1989 | CN2038083U Small-sized dredge |
| 05/23/1989 | US4832531 Apparatus for laying subterranean plastic tape and pipe |
| 05/23/1989 | US4831751 Water craft for clearing navigational waters |
| 05/16/1989 | US4830537 Flexible pipe or cable laying apparatus |
| 05/11/1989 | DE3734273A1 Working vehicle, in particular front loader |
| 05/10/1989 | CN1032830A Corner guard system having a replaceable corner tooth |
| 05/09/1989 | US4827636 Trencher crumber assembly |
| 05/05/1989 | WO1989003916A1 Corner guard system having a replaceable corner tooth |
| 05/05/1989 | WO1989003915A1 Rotary trench excavator |
| 05/05/1989 | WO1989003635A1 Self-propelled stone crusher |
| 05/03/1989 | DE3735679A1 Arrangement for raising the groundwater level, method of producing the arrangement, and apparatus for carrying out this method |
| 05/03/1989 | DE3735304A1 Machine for making holes in the earth |
| 05/02/1989 | US4825569 Trench digging, cable laying and trench filling apparatus |
| 04/26/1989 | EP0312724A1 Method for excavating hole and apparatus therefor |
| 04/25/1989 | US4824176 Milling engine for excavating trenches in the ground |
| 04/18/1989 | US4821808 Resonantly driven earth moving blade |
| 04/11/1989 | US4819741 Reversiele percussion device |
| 04/11/1989 | US4819348 Ditch forming machine |
| 04/11/1989 | US4819347 System for removing submerged sandwaves |
| 04/05/1989 | EP0310592A1 Loading device |
| 04/05/1989 | CN2035359U High-efficiency centrifugal soil crusher |
| 04/04/1989 | US4817731 Ripper mechanism |
| 03/28/1989 | US4815542 Ground leveling attachment for box-scraper |
| 03/23/1989 | DE3730756A1 Device for introducing an elongated explosive charge into the ground |
| 03/21/1989 | US4813611 Compressed air nozzle |
| 03/16/1989 | DE3731234C1 Hochdruckwasserstrahlgeraet mit pulsierendem Wasserstrahl Hochdruckwasserstrahlgeraet with pulsating water jet |
| 03/14/1989 | US4812079 Embedding cablelike members |
| 03/14/1989 | US4812078 Mechanized unit for digging a trench and laying elongate objects |
| 03/09/1989 | DE3249844C2 Attachment device for treating road coverings |
| 03/08/1989 | EP0306112A1 Process for laying a line in the ground |
| 03/08/1989 | EP0305658A1 Milling device for slits |
| 03/01/1989 | EP0304522A1 Improved trenching device |
| 02/21/1989 | US4806049 Process and device for temporarily supporting the walls of a trench |
| 02/21/1989 | US4806043 Method and device for drainage of borders of all stabilized civil engineering areas or of adjacent borders of a structure |
| 02/21/1989 | US4805707 For attachment to a loader machine |
| 02/21/1989 | US4805322 Excavating blade assembly |
| 02/16/1989 | DE3726385A1 Apparatus for transporting and/or for installing conveying buckets of bucket wheel excavators |
| 02/16/1989 | DE3725595A1 Crawler mounted bucket wheel excavator - has flexible conveyor belt and carrier system giving greater manoeuvrability |
| 02/14/1989 | US4803789 Earth moving equipment |
| 02/09/1989 | DE3727786A1 Verfahren und vorrichtung zum installieren einer neuen rohrleitung innerhalb einer bestehenden rohrleitung Method and apparatus for installing a new pipeline within an existing pipeline |
| 02/07/1989 | US4802793 Pipeline or cable plough |
| 02/07/1989 | US4802293 Adjustable earth-moving attachment for a vehicle |
| 02/07/1989 | US4802292 Continuous mining device for crust deposits, etc. and continuous line bucket method with turning movement |
| 02/02/1989 | DE3744695A1 Method for dredging and dressing silt from harbours, waterways etc. |
| 02/02/1989 | DE3724251A1 Verfahren und vorrichtung zum baggern von schlick aus hafen, wasserstrassen oder dergleichen Method and device for dredging of silt from harbor, water roads or the like |
| 01/31/1989 | US4800967 Drilling machine for digging trenches in the ground |
| 01/26/1989 | WO1989000631A1 Rock excavating shovel |
| 01/26/1989 | WO1989000630A1 Process and device for dredging silt in ports, waterways and the like |
| 01/26/1989 | WO1989000629A1 Bucket scoop with endless screw evacuator |
| 01/24/1989 | US4799320 Apparatus for digging surface trenches in the ground |
| 01/18/1989 | EP0299871A1 Excavating device for digging trenches in the ground |
| 01/18/1989 | CN2031017U Mud sucking boat |
| 01/18/1989 | CN2031016U Amphibian mud cleaning machine for irrigation channel |
| 01/17/1989 | CA1248767A1 Pipeline or cable plough |
| 01/12/1989 | DE3817213C1 Hydraulic harrow |
| 01/11/1989 | EP0188487B1 Large cross-section sunken conduit |
| 01/10/1989 | US4796366 Plow/scraper assembly for earth mover vehicle |
| 01/05/1989 | DE3821089A1 Apparatus for delivering material to a ground surface |
| 01/04/1989 | CN2030214U Sludge cleaner set |
| 01/03/1989 | US4794709 Device for digging trenches |
| 01/03/1989 | US4794708 Trenching machine boom assembly |
| 12/28/1988 | EP0296783A1 Seabed trenching apparatus |
| 12/27/1988 | US4793183 Automated positioning/drawing system and method of use |
| 12/15/1988 | WO1988009607A1 Earth breaking machine |
| 12/13/1988 | US4790687 Tamper attachment for vibratory plow and method of laying line and cable |
| 12/07/1988 | EP0293515A2 Device for removing solids from liquid flowing in a sewer |
| 12/06/1988 | US4789585 Heat transfer block for cross flow heat exchanger |
| 11/30/1988 | EP0292703A2 Process and device for laying plastic pipes |
| 11/29/1988 | US4787777 Method and device for progressively producing an underwater laying-out channel |
| 11/22/1988 | US4785560 Continuous excavating apparatus |
| 11/22/1988 | US4785559 Excavator for making a substantially vertical slot in the ground |
| 11/17/1988 | EP0291027A1 Removal device |
| 11/17/1988 | DE3725726C1 Ditching roller on contractors plant - incorporates segments screwed to cutter shaft to form disc |
| 11/15/1988 | US4784524 Railroad cable laying apparatus with plow blade support and dual plow tethering |
| 11/08/1988 | US4782606 Method and apparatus for backfilling ditches |
| 11/03/1988 | WO1988008470A1 Pneumatic extraction head |
| 11/02/1988 | EP0288644A1 Method and apparatus for the provisional shoring of trench walls |
| 11/01/1988 | CA1243911A1 Reversible air-operated percussive action machine for driving holes in the ground |
| 10/25/1988 | CA1243694A1 Excavation apparatus |
| 10/11/1988 | US4776114 Teeth on a tooth |
| 10/11/1988 | US4776113 Corner guard system having a replaceable corner tooth |
| 10/11/1988 | CA1242994A1 Quick-mount loader for articulated tractors |
| 10/06/1988 | DE3710285A1 Apparatus for extracting contaminated earth |
| 10/06/1988 | DE3710284A1 Apparatus and method for extracting contaminated earth |
| 10/06/1988 | DE3710283A1 Apparatus for extracting and removing contaminated earth |
| 10/04/1988 | US4775287 Adjustable boom |
| 10/04/1988 | US4775189 Bushing plate cutter |
| 10/04/1988 | US4775014 Ground-working implement |
| 09/29/1988 | DE3709186A1 Shovel excavator, especially dipper shovel excavator |
| 09/21/1988 | EP0283286A2 Apparatus for removing a surface layer from the ground |
| 09/21/1988 | CN87107566A Control system for an impact ripper |
| 09/20/1988 | CA1242081A1 Pipe laying apparatus |
| 09/20/1988 | CA1242080A1 System to control tension in a cable during underground placement |
| 09/15/1988 | DE3724764C1 Appliance for transporting liquid metallurgical slag |
| 09/06/1988 | US4768297 Trenching wheel, more especially for digging trenches |
| 08/24/1988 | CN88210758U Mine dredge |