Patents
Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683)
05/1999
05/06/1999DE19748761A1 Coal extraction machine
04/1999
04/22/1999DE19827058A1 Cutter head for tunneling machines in civil constructions
04/21/1999CN2315150Y Lining device for underground pipelinedigging
04/21/1999CN2315149Y Multipurpose machine for digging levelling snow cleaning and road cleaning of road
04/20/1999CA2188102C Pipe rehabilitation system and methods
04/13/1999US5893260 Portable apparatus for forming and filling sandbags
04/01/1999DE19838513A1 Clearance device for ground slots
03/1999
03/31/1999EP0830522A4 Excavator data acquisition and control system and process
03/30/1999US5887667 Method and means for drilling an earthen hole
03/18/1999WO1999013171A1 Submarine plough
03/17/1999EP0902129A2 Method and device for laying pipes in the ground
03/10/1999EP0900303A1 A method for levelling and filling of ditches, and a device for use in levelling and filling ditches
03/09/1999US5879109 Process and apparatus for introducing an optical or electrical cable into solid ground
03/03/1999CN2309363Y Infiltrating irrigation pipeline machine
03/02/1999US5875573 Vertical spin ditcher with 3 point hitch
02/1999
02/25/1999DE19729737A1 Processor for material dredged esp. from water
02/24/1999EP0797708A4 Apparatus and associated method for padding a trench
02/24/1999CN2308641Y Wheel type diving desilting boat
02/24/1999CN1209184A Trencbless underground boring system with boring location
02/23/1999US5873421 Tool for installing a pipeline under a structure
02/23/1999US5873396 Sandbag-filling apparatus
02/23/1999US5873186 Excavating machine with cleaning device
02/18/1999WO1999007949A1 Underwater mining apparatus and method
02/10/1999EP0656976B1 Excavating and pipe laying machines
02/04/1999WO1998050641A3 Machine for digging into the lower layers of the ground
02/04/1999DE19738518C1 Process to remove sediment deposits from the bed of inland waterways especially lakes and ponds
02/04/1999DE19727549A1 Vorrichtung sowie Verfahren zum Ausheben und Auffüllen von Erdreich Apparatus and method for excavating and backfilling of soil
02/03/1999EP0894901A2 Control for hydraulically operated construction machine having multiple tandem articulated members
02/03/1999CN1041954C Rotary bucket type dredger
02/02/1999US5864970 Earth excavating apparatus
01/1999
01/28/1999WO1999004107A1 Method and apparatus for transferring mud and silt
01/20/1999EP0892116A1 Drag head for a trailing suction hopper dredger and process for dredging by means of this drag head
01/19/1999US5860232 Mobile safe excavation system having a deflector plate and vacuum source
01/19/1999CA2215318C Final grading grid
01/19/1999CA2028917C Floating dredger
01/14/1999WO1998030758A3 Machine for uncovering a pipeline and operating element
01/07/1999WO1999000556A1 Method for padding ground below a duct using excavated soil, device for realising the same, equipment for compacting soil below a duct and soil-compacting mechanism
01/07/1999WO1999000555A1 Device and method for excavating and redepositing earth
01/07/1999CA2298466A1 The method for padding ground below a duct using excavated soil, device for realising the same, equipment for compacting soil below a duct and soil-compacting mechanism
12/1998
12/30/1998WO1998044239A3 Overload protector mechanism for shield mechanism of excavating wheel
12/30/1998WO1998044238A3 An ejector mechanism for a silt removal excavating wheel
12/16/1998EP0883718A1 Dredging apparatus
12/08/1998US5846026 Method for pipeline padding
12/03/1998WO1998040568A3 Pneumatic excavator
12/01/1998CA2008607C Wear resistant chain for trenchers
11/1998
11/26/1998WO1998053148A1 Soil improving machine with excavating means
11/19/1998WO1998051395A1 Method and system for cleaning a water basin floor
11/12/1998WO1998050641A2 Machine for digging into the lower layers of the ground
11/11/1998CN2296901Y Machine for cleaning underground watercourse
11/11/1998CN1198496A Excavation method
11/10/1998US5833011 Landscaping rake-leveling device
11/04/1998EP0875630A1 Construction machine
11/03/1998US5830752 Apparatus for in-situ soil remediation
10/1998
10/28/1998EP0873465A1 Trenchless underground boring system with boring tool location
10/28/1998CN1197494A Method and appts. for backfilling padded underground structures
10/27/1998US5827013 Underground cable anode installment system
10/27/1998CA2085507C Excavation apparatus
10/22/1998DE19715284A1 Underwater mineral recovery unit operated in conjunction with ship
10/14/1998EP0870876A2 Excavating method
10/14/1998EP0870874A1 Method and device for putting a drain pipe almost horizontally in the ground
10/13/1998US5819859 Apparatus and method for detecting an underground structure
10/08/1998WO1998044239A2 Overload protector mechanism for shield mechanism of excavating wheel
10/08/1998WO1998044238A2 An ejector mechanism for a silt removal excavating wheel
10/08/1998WO1998044207A1 Method and device for dumping dredged materials
10/08/1998WO1998044206A1 Screening apparatus
10/08/1998WO1998044204A1 Apparatus and method for removing silt from under a body of water
10/07/1998EP0869224A1 Method and device for dumping dredged materials
10/06/1998US5816744 Underwater cable burial machine having tripable plows
10/01/1998WO1998042922A1 Underwater mining machine
10/01/1998CA2285630A1 Underwater mining machine
09/1998
09/30/1998CN1039984C Hose reeling device
09/23/1998EP0865543A1 Pipeline padding apparatus
09/23/1998EP0731863B1 Process and device used to renovate railroad track installations
09/23/1998CN2292120Y High-effect forced twisting suction head
09/22/1998US5809779 Auxiliary hydraulic power unit
09/22/1998US5809670 Excavating machine with grooving device
09/22/1998CA2143109C Excavating and pipe laying machines
09/17/1998WO1998040568A2 Pneumatic excavator
09/16/1998EP0864698A1 Self-loading mobile crusher system
09/16/1998CN2291450Y Reamer
09/08/1998US5802744 Method of and an apparatus for reconstructing railway track systems
09/03/1998DE19757383A1 Universal heavy construction machine
09/03/1998DE19733663C1 Trench digger and soil processing self-propelled machine
09/02/1998CN2289834Y Hydraulic slotted submerged membrance machine
09/02/1998CN1191917A Universal heavy equipment
08/1998
08/27/1998WO1998037279A1 Method for constructing an underground structure, excavating method, an excavating tool and a reinforceing bar fixing tool therefor
08/26/1998EP0860556A1 Method for making a trench under water and device therefor
08/26/1998CN1191594A Excavator data acquisition and control system and process
08/20/1998CA2229891A1 Process for introducing an optical or electrical cable into solid ground, and machine for laying the cable
08/19/1998EP0858535A2 Process and apparatus for excavation using an earth cutter, and construction filling in the excavation
08/19/1998CN1039549C Apparatus for cutting and excavating solids
08/18/1998US5794710 Apparatus for moving earth
08/12/1998CN2287639Y Under water soil shifting machine
08/12/1998CN1190043A Trench wall cutter
08/11/1998US5791825 Device and method for producing a containment barrier underneath and around in-situ buried waste
08/11/1998US5791073 Vacuum excavation system
08/05/1998CN1039442C Barge-loading type seabeach pipeliene xcavator
08/04/1998US5788422 Underground barrier construction apparatus with soil-retaining shield
08/04/1998US5788168 Self-loading mobile crusher system
07/1998
07/30/1998WO1998015165A3 Machine for digging under pipes and caterpillar traction device
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