Patents
Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683)
06/1995
06/08/1995WO1995015418A1 Process and device used to renovate railroad track installations
06/08/1995DE4341187A1 Scoop wheel with rotary driven body and overload clutch
06/06/1995US5421109 For sweeping the bottom of a body of water around a well head
06/06/1995US5421108 High volume pipe padding machine
05/1995
05/31/1995CN2199242Y Soil-shifting machine for cleaning watercourse
05/18/1995WO1995013433A1 Sensor positioning apparatus for trench excavator
05/10/1995CN2196644Y Electric-saw ditch-cutting machine
05/10/1995CN1102450A Shield type excavator
05/09/1995US5413181 Rake attachment for a skid steer
05/09/1995US5412884 Waste material pond cleaning apparatus
05/04/1995WO1995012040A1 Drilling apparatus
05/04/1995CA2175361A1 Drilling apparatus
04/1995
04/18/1995US5406725 Method and apparatus for water bottom removal of bottom material
04/11/1995US5404988 Mobile connecting belt bridge for open pit mining
04/05/1995EP0646213A1 Process and tool for laying underground collector mains for liquids and gases
04/05/1995CN1028124C Gathering and conveying device used with underwater sand-pushing ship
04/05/1995CN1028123C Underwater sand-shifting ship
03/1995
03/29/1995EP0645495A2 Cleaning device for water flowing in a sewer
03/28/1995US5401119 Process and apparatus for the disposal of waste materials
03/22/1995CN2192660Y Irrigation ditch trencher
03/21/1995US5398430 Earth moving and compacting rig
02/1995
02/28/1995US5392541 Vibratory plow assembly
02/28/1995US5392540 Mounting apparatus for a bridge of a trenching machine
02/21/1995CA1334481C Pipeline padding system
02/16/1995DE4327426A1 Attachment for screening and filling earth materials
02/14/1995US5388893 Pavement grinder and trench opening mill and method
02/07/1995US5386877 Apparatus to assist an earthmoving vehicle
01/1995
01/19/1995DE4336057C1 Apparatus for dredging contaminated beds of stretches of water
01/19/1995DE4322553A1 Underwater grab/hydraulic crusher with integrated conveying and loosening device
01/17/1995US5381616 Rotary rockwheel assemblies
01/11/1995EP0633361A1 Apparatus and method of constructing monolithic trench walls, sills and hard standings
01/10/1995US5379534 Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine
01/03/1995US5378049 Rotary cutter for extracting hard rock
01/03/1995US5377767 Hole digger
12/1994
12/27/1994US5375348 Deep excavator
12/27/1994US5375347 Bucket wheel with supporting body
12/08/1994WO1994028256A1 Apparatus for pneumatic excavation
11/1994
11/30/1994EP0626483A2 Pipeline padding apparatus with rotary feeder
11/30/1994EP0626482A2 Bucket dredger
11/30/1994CN2184015Y Cleaner for watercourse grid
11/30/1994CN1026808C High-efficient centrifugal break barrow
11/16/1994CN2182823Y Chain type dredger
11/15/1994US5363574 Pipeline padding apparatus
11/15/1994CA1333062C Pipeline padding apparatus
11/10/1994WO1994025191A1 Method and apparatus for in situ soil remediation
11/08/1994US5361855 Method and casing for excavating a borehole
10/1994
10/27/1994WO1994024414A1 Process and tool for laying underground collector mains for liquids and gases
10/27/1994WO1994024377A1 Method and device for continuously laying and burying a flexible submarine cable
10/27/1994CA2161106A1 Method and device for continuously laying and burying a flexible submarine cable
10/19/1994EP0473590B1 A caterpillar-driven excavating machine equipped with a separate working tool
10/18/1994US5355597 Device for digging a trench
10/13/1994DE4311733A1 Support for a mobile cable winch
10/13/1994DE4311732A1 Support for a mobile cable winch
10/12/1994EP0619633A1 Process for laying a product of great length in the ground and devices for its carrying out
10/11/1994US5353531 Ditch digging apparatus and method
10/11/1994US5353529 Apparatus for backfilling
09/1994
09/29/1994WO1994021864A1 Process and device for precisely maintaining the vertical excavation direction of a subterranean curtain
09/27/1994US5349765 Excavator for constructing underground continuous wall and construction method using the excavator
09/15/1994WO1994021018A1 Cable duct element
09/07/1994EP0613983A1 Suction dredge
09/01/1994WO1994019547A1 Method and apparatus for in situ installation of underground containment barriers under contaminated lands
09/01/1994WO1994019272A1 Excavating equipment
09/01/1994CA2155312A1 Excavating equipment
08/1994
08/24/1994CN2175261Y Rotation hopper type machine for automatically cleaning watercourse
08/10/1994CN1025635C Multifunctional back-filling machine for pipeline construction
08/02/1994CA1331101C Cable plough
07/1994
07/26/1994CA2042048C Method and apparatus for laying pipe
07/26/1994CA1330957C Device for removing material screened or filtered out of a liquid flowing in a channel
07/20/1994CN2172312Y Underground level rectangle hole expander
07/13/1994EP0606153A1 Method and apparatus for water bottom removal of bottom material using a flow of water
07/12/1994US5328297 Trenchless replacement of smaller diameter lateral pipe sections
07/06/1994CN2170968Y Rake type electric foul-cleaning machine
06/1994
06/23/1994WO1994013891A1 Roadway trenching apparatus
06/15/1994EP0601049A1 Soil implement
06/15/1994CN1087961A Apparatus for removing of particles from the bottom of water reservoirs and other water ways
06/14/1994US5320451 Cable laying attachment for tiller
06/01/1994EP0599176A1 Implement for an Excavator
06/01/1994CN2167128Y Hydraulic dredger following flowing water during work
05/1994
05/31/1994USRE34620 Trenching apparatus and methods of forming inground retaining walls
05/31/1994US5315770 Roadway trenching apparatus
05/31/1994CA1329888C Spot mounder method and apparatus
05/25/1994CN2166161Y 地下水平扩孔器 Underground level reamer
05/25/1994CN2166160Y Underground horizontal direction regulating punching machine
05/25/1994CN1024698C Dual-wheel ditcher for U-shaped ditch
05/25/1994CN1024697C Ditcher
05/18/1994CN2165162Y Traveling automatic sand dredger
05/18/1994CN2165161Y Slurry concrete wall groover
05/18/1994CN1086873A Apparatus for cutting and excavating solids
05/17/1994US5311683 Method of commencing and continuing a trench
05/17/1994US5311682 For dredging material from a bottom of a fluid reservoir
05/11/1994DE4335479A1 Detecting inclination of excavations, esp. trench walls - using measurement cell on excavating tool with wireless data transfer to base station
04/1994
04/26/1994US5305661 Apparatus and method for positioning a link
04/20/1994EP0593355A1 Trenching apparatus for digging deep trenches with cutting drums
04/14/1994DE4234442A1 Method of filling pipe trenches with concrete - involves keeping dry concrete ingredients in silo on vehicle which is brought to trench edge and then adding water to mixture in mixing and conveying machine just before pouring
04/13/1994EP0592329A1 Telescopic guiding element for trenching apparatus for digging deep trenches with cutting drums
04/13/1994EP0592326A1 Trenching apparatus for digging deep trenches with cutting drums
04/13/1994EP0592325A1 Trenching apparatus for digging deep trenches with cutting drums mounted on a chassis
04/13/1994EP0592268A1 Work barge
04/05/1994US5299370 Excavation apparatus
03/1994
03/31/1994WO1994006973A1 Hydraulic thrust producing implement
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