Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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07/30/1996 | US5540003 Padding machine with shaker for separator |
07/24/1996 | EP0722654A1 Boom mounted treatment apparatus for roadside maintenance |
07/23/1996 | CA2078688C Method and apparatus for laying undersea pipes or cables featuring rotating or oscillating jets and block removal |
06/26/1996 | EP0718233A2 Device for winding a hose |
06/26/1996 | CN2229946Y Water power dredging machine for cleaning watercourse |
06/25/1996 | US5529129 Hand-held trenching tool |
06/11/1996 | CA2094944C Ditch digging apparatus and method |
05/29/1996 | CN1123354A Apparatus for obtaining sands from bottom of river |
05/17/1996 | WO1996014553A1 Device for recovering explosive objects buried in the ground |
05/17/1996 | CA2204533A1 Device for recovering explosive objects buried in the ground |
05/14/1996 | US5515625 Rake attachment with scarifying teeth for a skid steer |
05/08/1996 | EP0521032B1 Improvements in fluid-based excavating |
05/08/1996 | CN1121976A Method and apparatus for dredging canal |
05/01/1996 | EP0709526A2 Back-filling device for pipe trenches |
04/30/1996 | US5511326 Rotating disk-type ditcher |
04/25/1996 | DE19539249A1 Rotary tool for digging trenches |
04/24/1996 | EP0708270A1 Supporting chain for pipes |
04/23/1996 | CA2045656C Trenching apparatus |
04/18/1996 | WO1996011305A1 Automatic depth control for trencher |
04/17/1996 | EP0419484B1 Improvements relating to dredgers |
04/04/1996 | DE4434906A1 Underground excavating shovel |
04/03/1996 | CN1119882A Process and device for precisely maintaining the vertical excavation direction of a subterranean curtain |
03/28/1996 | DE19535647A1 Dredger with pumping of dredged material |
03/20/1996 | EP0478749B1 Ripper assembly with pitch control and integral frame and push block |
03/20/1996 | CN2222742Y Expansion excavating skip in manhole |
03/12/1996 | US5497567 Excavating machine for digging a ditch |
03/07/1996 | DE4431562A1 Method of preparing trench floor for laying pipeline |
03/06/1996 | CN1118031A Barge-loading type seabeach pipeline excavator |
03/05/1996 | US5496135 Articulated vehicle for use in confining trench work |
02/29/1996 | WO1996006232A1 Apparatus for laying sub-surface pipes and cables |
02/28/1996 | EP0499602B1 Linear impact ripper apparatus |
02/28/1996 | CN1117749A Sensor positioning apparatus for trench excavator |
02/27/1996 | US5493796 Pipeline padding apparatus |
02/20/1996 | US5491914 Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine |
02/15/1996 | WO1996004500A1 Underground cable anode installment system |
02/15/1996 | DE4439617C1 Equipment for recovering explosive objects in ground |
02/13/1996 | US5490339 Trenching system for earth surface use, as on paved streets, roads, highways and the like |
01/31/1996 | EP0694100A1 Method and device for continuously laying and burying a flexible submarine cable |
01/30/1996 | US5487229 Apparatus for pneumatic excavation |
01/24/1996 | CN2218201Y Water power dredger for water reservoir |
01/17/1996 | EP0494196B1 Tunnel drilling apparatus and method to remove drill waste |
01/10/1996 | EP0690943A1 Process and device for precisely maintaining the vertical excavation direction of a subterranean curtain |
01/09/1996 | US5482121 Vibratory cable plow assembly |
01/02/1996 | US5480291 Underwater excavation apparatus |
01/02/1996 | US5479728 Apparatus for backfilling and tamping a trench |
01/02/1996 | US5479726 For moving along one side of a pipeline ditch |
12/27/1995 | CN2216083Y Air flow type dredger |
12/26/1995 | US5478139 Mobile digging/cutting system |
12/21/1995 | DE4426598C1 Hose chain with U=shaped links |
12/20/1995 | EP0687331A1 Device for filling a trench in the sea bed to cover a pipe placed therein |
12/20/1995 | CN2215522Y Bucket type mud dredger |
12/13/1995 | EP0687048A1 Process and device for laying an underground telecommunication cable |
12/13/1995 | EP0494197B1 Control method for drilling apparatus |
12/05/1995 | US5471771 Method and apparatus for cooling chain type diggers |
12/01/1995 | CA2148397A1 Ground thaw apparatus |
11/30/1995 | WO1995032121A1 Supplied ship for underwater excavator |
11/15/1995 | CN2212607Y Bridge-type earthwork machine for making embankment on seabeach |
11/14/1995 | USRE35088 Trenching machine with laterally adjustable chain-type digging implement |
11/14/1995 | US5465511 Trenching machine |
11/07/1995 | US5464308 Process and apparatus for simultaneously laying long product and protective tube in the ground |
10/31/1995 | US5462389 Undersea cable burial plowshare and sled apparatus |
10/31/1995 | CA2045766C Compactor and blade attachment for loader |
10/26/1995 | WO1995028529A1 Apparatus for burying an elongated article underwater |
10/26/1995 | WO1995028076A1 Soil working device |
10/19/1995 | WO1995027832A1 Method and vessel for treating an underwater bed |
10/19/1995 | DE4413289A1 Bodenbearbeitungsgerät Harrow |
10/18/1995 | EP0677616A1 Method for compacting and consolidating the underwater bed |
10/18/1995 | EP0677129A1 Sensor positioning apparatus for trench excavator |
10/18/1995 | EP0456692B1 Cutting apparatus |
10/18/1995 | CN1110353A Channel trench digger |
10/11/1995 | CN2209693Y Cambered grid-type sewage disposal equipment |
10/10/1995 | US5456551 Underwater trenching system |
10/05/1995 | WO1995026445A1 Levelling blade with vibrating shoes for making road embankments |
09/27/1995 | CN2208593Y Hydraulic dredge ship |
09/26/1995 | US5452969 Apparatus for screening and spreading bedding material in a ditch |
09/13/1995 | CN1108333A Endless chain type cutter |
09/06/1995 | EP0521978B1 Rotary rockwheel assemblies |
09/05/1995 | CA2037202C Universal excavator with auxiliary tool supply means and bucket scraper |
08/30/1995 | EP0669377A1 Water-resistant gypsum compositions and emulsion for making same |
08/30/1995 | CN1107643A Process and tool for laying underground collector mains for liquids and gases |
08/29/1995 | CA2049484C Method and tool for seabed excavation |
08/15/1995 | US5441038 Ground thaw apparatus |
08/10/1995 | WO1995021303A1 Method for dredging using a hopper suction dredger and hopper suction dredger therefor |
08/09/1995 | CN1029489C Reservoir water power mud-removing system |
08/01/1995 | US5437722 An aqueous slurries comprising paraffin hydrocarbon, montan wax and polyvinyl alcohol derived from completely or partial hydrolyzed polyvinyl acetate; asphalt-free; wallboard |
07/29/1995 | CA2114483A1 Pipeline plow |
07/27/1995 | WO1995020076A1 Pipeline trenching plough |
07/19/1995 | EP0663478A1 Combination of a digger with a vibrating device |
07/18/1995 | US5433277 Soil implement |
07/18/1995 | US5433033 Excavating tooth and shank plate assembly |
07/13/1995 | WO1995018895A1 Device for filling a trench in the sea bed to cover a pipe placed therein |
07/13/1995 | CA2157685A1 Device for filling a trench in the sea bed to cover a pipe placed therein |
07/11/1995 | US5430962 Pipeline padding apparatus with rotary feeder |
07/11/1995 | CA2045628C Retractable excavator cutting tooth apparatus |
07/05/1995 | CN1029252C Cleaning apparatus for streight sliding-door guiding groove |
06/28/1995 | EP0659944A1 Endless chain type cutter |
06/28/1995 | EP0659943A1 Excavating apparatus |
06/20/1995 | US5425188 For removing material |
06/14/1995 | EP0656988A1 Apparatus for cutting and excavating solids |
06/14/1995 | EP0656976A1 Excavating and pipe laying machines |